diff --git a/connector-template/mod.rs b/connector-template/mod.rs
index 60c8992360..7bcf4d30fb 100644
--- a/connector-template/mod.rs
+++ b/connector-template/mod.rs
@@ -36,7 +36,7 @@ impl api::Refund for {{project-name | downcase | pascal_case}} {}
 impl api::RefundExecute for {{project-name | downcase | pascal_case}} {}
 impl api::RefundSync for {{project-name | downcase | pascal_case}} {}
 
-impl<Flow, Request, Response> ConnectorCommonExt<Flow, Request, Response> for {{project-name | downcase | pascal_case}} 
+impl<Flow, Request, Response> ConnectorCommonExt<Flow, Request, Response> for {{project-name | downcase | pascal_case}}
 where
     Self: ConnectorIntegration<Flow, Request, Response>,{
     fn build_headers(
@@ -132,7 +132,7 @@ impl
     fn get_url(&self, _req: &types::PaymentsAuthorizeRouterData, _connectors: &settings::Connectors,) -> CustomResult<String,errors::ConnectorError> {
         Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
     }
-    
+
     fn get_request_body(&self, req: &types::PaymentsAuthorizeRouterData) -> CustomResult<Option<String>,errors::ConnectorError> {
         let req_obj = {{project-name | downcase}}::{{project-name | downcase | pascal_case}}PaymentsRequest::try_from(req)?;
         let {{project-name | downcase}}_req =
@@ -154,6 +154,7 @@ impl
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -214,6 +215,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -287,6 +289,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -359,6 +362,7 @@ impl
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(self, req, connectors)?)
             .body(types::RefundExecuteType::get_request_body(self, req)?)
             .build();
@@ -407,6 +411,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
diff --git a/connector-template/transformers.rs b/connector-template/transformers.rs
index 3cc0c3d9e9..985c68a99c 100644
--- a/connector-template/transformers.rs
+++ b/connector-template/transformers.rs
@@ -38,7 +38,7 @@ impl TryFrom<&types::PaymentsAuthorizeRouterData> for {{project-name | downcase
                 })
             }
             _ => Err(errors::ConnectorError::NotImplemented("Payment methods".to_string()).into()),
-        }    
+        }
     }
 }
 
diff --git a/crates/router/src/connector/aci.rs b/crates/router/src/connector/aci.rs
index daa1236b0d..0a925eb251 100644
--- a/crates/router/src/connector/aci.rs
+++ b/crates/router/src/connector/aci.rs
@@ -103,13 +103,10 @@ impl
         req: &types::PaymentsSyncRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsSyncType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsSyncType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -147,6 +144,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsSyncType::get_request_body(self, req)?)
                 .build(),
@@ -210,13 +208,10 @@ impl
         req: &types::PaymentsAuthorizeRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -259,10 +254,10 @@ impl
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
-                .header(headers::X_ROUTER, "test")
                 .body(types::PaymentsAuthorizeType::get_request_body(self, req)?)
                 .build(),
         ))
@@ -321,13 +316,10 @@ impl
         req: &types::PaymentsCancelRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -363,6 +355,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsVoidType::get_request_body(self, req)?)
                 .build(),
@@ -422,13 +415,10 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         req: &types::RefundsRouterData<api::Execute>,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::RefundExecuteType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::RefundExecuteType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -469,6 +459,7 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundExecuteType::get_headers(
                     self, req, connectors,
                 )?)
diff --git a/crates/router/src/connector/adyen.rs b/crates/router/src/connector/adyen.rs
index 6740c1d3b1..87415a1152 100644
--- a/crates/router/src/connector/adyen.rs
+++ b/crates/router/src/connector/adyen.rs
@@ -97,13 +97,10 @@ impl
         req: &types::PaymentsCaptureRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                self.common_get_content_type().to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            self.common_get_content_type().to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -141,6 +138,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -191,13 +189,10 @@ impl
         req: &types::RouterData<api::PSync, types::PaymentsSyncData, types::PaymentsResponseData>,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsSyncType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsSyncType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -270,8 +265,8 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
-                .header(headers::X_ROUTER, "test")
                 .body(types::PaymentsSyncType::get_request_body(self, req)?)
                 .build(),
         ))
@@ -336,13 +331,10 @@ impl
             types::PaymentsResponseData,
         >,
     {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -383,10 +375,10 @@ impl
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
-                .header(headers::X_ROUTER, "test")
                 .body(types::PaymentsAuthorizeType::get_request_body(self, req)?)
                 .build(),
         ))
@@ -443,13 +435,10 @@ impl
         req: &types::PaymentsCancelRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -487,8 +476,8 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
-                .header(headers::X_ROUTER, "test")
                 .body(types::PaymentsVoidType::get_request_body(self, req)?)
                 .build(),
         ))
@@ -541,13 +530,10 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         req: &types::RefundsRouterData<api::Execute>,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::RefundExecuteType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::RefundExecuteType::get_content_type(self).to_string(),
+        )];
         let mut api_header = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_header);
         Ok(header)
@@ -586,6 +572,7 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundExecuteType::get_headers(
                     self, req, connectors,
                 )?)
diff --git a/crates/router/src/connector/airwallex.rs b/crates/router/src/connector/airwallex.rs
index 668fa247cf..382fce8062 100644
--- a/crates/router/src/connector/airwallex.rs
+++ b/crates/router/src/connector/airwallex.rs
@@ -133,6 +133,7 @@ impl ConnectorIntegration<api::AccessTokenAuth, types::AccessTokenRequestData, t
         let req = Some(
             services::RequestBuilder::new()
                 .method(services::Method::Post)
+                .attach_default_headers()
                 .headers(types::RefreshTokenType::get_headers(self, req, connectors)?)
                 .url(&types::RefreshTokenType::get_url(self, req, connectors)?)
                 .body(types::RefreshTokenType::get_request_body(self, req)?)
@@ -221,6 +222,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsInitType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsInitType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsInitType::get_request_body(self, req)?)
                 .build(),
@@ -336,6 +338,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -414,6 +417,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -497,6 +501,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -610,6 +615,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsVoidType::get_request_body(self, req)?)
                 .build(),
@@ -673,6 +679,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -745,6 +752,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
diff --git a/crates/router/src/connector/applepay.rs b/crates/router/src/connector/applepay.rs
index 7415e32c14..b97ad547e2 100644
--- a/crates/router/src/connector/applepay.rs
+++ b/crates/router/src/connector/applepay.rs
@@ -143,6 +143,7 @@ impl
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::PaymentsSessionType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::PaymentsSessionType::get_headers(
                 self, req, connectors,
             )?)
diff --git a/crates/router/src/connector/authorizedotnet.rs b/crates/router/src/connector/authorizedotnet.rs
index fd095e1c69..2c946b42b9 100644
--- a/crates/router/src/connector/authorizedotnet.rs
+++ b/crates/router/src/connector/authorizedotnet.rs
@@ -96,13 +96,10 @@ impl
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
         // This connector does not require an auth header, the authentication details are sent in the request body
-        Ok(vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsSyncType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ])
+        Ok(vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsSyncType::get_content_type(self).to_string(),
+        )])
     }
 
     fn get_content_type(&self) -> &'static str {
@@ -138,6 +135,7 @@ impl
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
             .body(types::PaymentsSyncType::get_request_body(self, req)?)
             .build();
@@ -190,13 +188,10 @@ impl
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
         // This connector does not require an auth header, the authentication details are sent in the request body
-        Ok(vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ])
+        Ok(vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )])
     }
 
     fn get_content_type(&self) -> &'static str {
@@ -240,10 +235,10 @@ impl
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
-                .header(headers::X_ROUTER, "test")
                 .body(types::PaymentsAuthorizeType::get_request_body(self, req)?)
                 .build(),
         ))
@@ -296,13 +291,10 @@ impl
         _req: &types::PaymentsCancelRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        Ok(vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ])
+        Ok(vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )])
     }
 
     fn get_content_type(&self) -> &'static str {
@@ -338,8 +330,8 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
-                .header(headers::X_ROUTER, "test")
                 .body(types::PaymentsVoidType::get_request_body(self, req)?)
                 .build(),
         ))
@@ -392,13 +384,10 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
         // This connector does not require an auth header, the authentication details are sent in the request body
-        Ok(vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ])
+        Ok(vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )])
     }
 
     fn get_content_type(&self) -> &'static str {
@@ -435,6 +424,7 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -487,13 +477,10 @@ impl services::ConnectorIntegration<api::RSync, types::RefundsData, types::Refun
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
         // This connector does not require an auth header, the authentication details are sent in the request body
-        Ok(vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::RefundSyncType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ])
+        Ok(vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::RefundSyncType::get_content_type(self).to_string(),
+        )])
     }
 
     fn get_content_type(&self) -> &'static str {
@@ -529,6 +516,7 @@ impl services::ConnectorIntegration<api::RSync, types::RefundsData, types::Refun
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
             .body(types::RefundSyncType::get_request_body(self, req)?)
             .build();
diff --git a/crates/router/src/connector/bambora.rs b/crates/router/src/connector/bambora.rs
index 91b956b949..9399f695fd 100644
--- a/crates/router/src/connector/bambora.rs
+++ b/crates/router/src/connector/bambora.rs
@@ -142,6 +142,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .body(self.get_request_body(req)?)
                 .build(),
@@ -226,6 +227,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -308,6 +310,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -400,6 +403,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -488,6 +492,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -558,6 +563,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
diff --git a/crates/router/src/connector/bluesnap.rs b/crates/router/src/connector/bluesnap.rs
index d887376aed..c15a31da33 100644
--- a/crates/router/src/connector/bluesnap.rs
+++ b/crates/router/src/connector/bluesnap.rs
@@ -166,6 +166,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
         let request = services::RequestBuilder::new()
             .method(services::Method::Put)
             .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
             .body(types::PaymentsVoidType::get_request_body(self, req)?)
             .build();
@@ -247,6 +248,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -327,6 +329,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
         let request = services::RequestBuilder::new()
             .method(services::Method::Put)
             .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::PaymentsCaptureType::get_headers(
                 self, req, connectors,
             )?)
@@ -433,6 +436,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -520,6 +524,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -589,6 +594,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
diff --git a/crates/router/src/connector/braintree.rs b/crates/router/src/connector/braintree.rs
index 45ae29962f..238438124f 100644
--- a/crates/router/src/connector/braintree.rs
+++ b/crates/router/src/connector/braintree.rs
@@ -77,7 +77,6 @@ impl
                 headers::CONTENT_TYPE.to_string(),
                 types::PaymentsSessionType::get_content_type(self).to_string(),
             ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
             (headers::X_API_VERSION.to_string(), "6".to_string()),
             (headers::ACCEPT.to_string(), "application/json".to_string()),
         ];
@@ -113,6 +112,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsSessionType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSessionType::get_headers(
                     self, req, connectors,
                 )?)
@@ -207,7 +207,6 @@ impl
                 headers::CONTENT_TYPE.to_string(),
                 types::PaymentsSyncType::get_content_type(self).to_string(),
             ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
             (headers::X_API_VERSION.to_string(), "6".to_string()),
             (headers::ACCEPT.to_string(), "application/json".to_string()),
         ];
@@ -249,6 +248,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsSyncType::get_request_body(self, req)?)
                 .build(),
@@ -314,7 +314,6 @@ impl
                 headers::CONTENT_TYPE.to_string(),
                 types::PaymentsAuthorizeType::get_content_type(self).to_string(),
             ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
             (headers::X_API_VERSION.to_string(), "6".to_string()),
             (headers::ACCEPT.to_string(), "application/json".to_string()),
         ];
@@ -349,6 +348,7 @@ impl
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -419,7 +419,6 @@ impl
                 headers::CONTENT_TYPE.to_string(),
                 types::PaymentsAuthorizeType::get_content_type(self).to_string(),
             ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
             (headers::X_API_VERSION.to_string(), "6".to_string()),
             (headers::ACCEPT.to_string(), "application/json".to_string()),
         ];
@@ -456,6 +455,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Put)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsVoidType::get_request_body(self, req)?)
                 .build(),
@@ -521,7 +521,6 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
                 headers::CONTENT_TYPE.to_string(),
                 types::RefundExecuteType::get_content_type(self).to_string(),
             ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
             (headers::X_API_VERSION.to_string(), "6".to_string()),
             (headers::ACCEPT.to_string(), "application/json".to_string()),
         ];
@@ -568,6 +567,7 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
diff --git a/crates/router/src/connector/checkout.rs b/crates/router/src/connector/checkout.rs
index 31e5486855..c283b7e267 100644
--- a/crates/router/src/connector/checkout.rs
+++ b/crates/router/src/connector/checkout.rs
@@ -106,13 +106,10 @@ impl
         req: &types::PaymentsCaptureRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                self.common_get_content_type().to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            self.common_get_content_type().to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -151,6 +148,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -208,13 +206,10 @@ impl
         req: &types::PaymentsSyncRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -245,8 +240,8 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
-                .header(headers::X_ROUTER, "test")
                 .body(types::PaymentsSyncType::get_request_body(self, req)?)
                 .build(),
         ))
@@ -308,13 +303,10 @@ impl
         req: &types::PaymentsAuthorizeRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -353,10 +345,10 @@ impl
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
-                .header(headers::X_ROUTER, "test")
                 .body(types::PaymentsAuthorizeType::get_request_body(self, req)?)
                 .build(),
         ))
@@ -425,13 +417,10 @@ impl
         req: &types::PaymentsCancelRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsVoidType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsVoidType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -468,6 +457,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsVoidType::get_request_body(self, req)?)
                 .build(),
@@ -526,13 +516,10 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         req: &types::RefundsRouterData<api::Execute>,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::RefundExecuteType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::RefundExecuteType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -574,6 +561,7 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -634,13 +622,10 @@ impl services::ConnectorIntegration<api::RSync, types::RefundsData, types::Refun
         req: &types::RefundsRouterData<api::RSync>,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::RefundSyncType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::RefundSyncType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -668,6 +653,7 @@ impl services::ConnectorIntegration<api::RSync, types::RefundsData, types::Refun
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
diff --git a/crates/router/src/connector/cybersource.rs b/crates/router/src/connector/cybersource.rs
index eada2ae356..d76ae3a26e 100644
--- a/crates/router/src/connector/cybersource.rs
+++ b/crates/router/src/connector/cybersource.rs
@@ -246,6 +246,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -334,6 +335,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -416,6 +418,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
             .url(&types::PaymentsAuthorizeType::get_url(
                 self, req, connectors,
             )?)
+            .attach_default_headers()
             .headers(types::PaymentsAuthorizeType::get_headers(
                 self, req, connectors,
             )?)
@@ -499,6 +502,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .body(self.get_request_body(req)?)
                 .build(),
@@ -586,6 +590,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundExecuteType::get_headers(
                     self, req, connectors,
                 )?)
@@ -656,6 +661,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
diff --git a/crates/router/src/connector/dlocal.rs b/crates/router/src/connector/dlocal.rs
index 64074c7d43..b1e2da0e68 100644
--- a/crates/router/src/connector/dlocal.rs
+++ b/crates/router/src/connector/dlocal.rs
@@ -171,6 +171,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -243,6 +244,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -316,6 +318,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -388,6 +391,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -458,6 +462,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -528,6 +533,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
diff --git a/crates/router/src/connector/fiserv.rs b/crates/router/src/connector/fiserv.rs
index 68f5b303ff..5831834d30 100644
--- a/crates/router/src/connector/fiserv.rs
+++ b/crates/router/src/connector/fiserv.rs
@@ -208,6 +208,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsVoidType::get_request_body(self, req)?)
                 .build(),
@@ -291,6 +292,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsSyncType::get_request_body(self, req)?)
                 .build(),
@@ -361,6 +363,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -466,6 +469,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -546,6 +550,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -625,6 +630,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
diff --git a/crates/router/src/connector/globalpay.rs b/crates/router/src/connector/globalpay.rs
index 81c1c91f2a..8c9d1457c2 100644
--- a/crates/router/src/connector/globalpay.rs
+++ b/crates/router/src/connector/globalpay.rs
@@ -152,6 +152,7 @@ impl
                 .url(&types::PaymentsComeplteAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsComeplteAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -228,6 +229,7 @@ impl ConnectorIntegration<api::AccessTokenAuth, types::AccessTokenRequestData, t
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::RefreshTokenType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefreshTokenType::get_headers(self, req, connectors)?)
                 .body(types::RefreshTokenType::get_request_body(self, req)?)
                 .build(),
@@ -328,6 +330,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsVoidType::get_request_body(self, req)?)
                 .build(),
@@ -411,6 +414,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -489,6 +493,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -577,6 +582,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -663,6 +669,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -739,6 +746,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
diff --git a/crates/router/src/connector/klarna.rs b/crates/router/src/connector/klarna.rs
index 049d67e215..3ff2f5decb 100644
--- a/crates/router/src/connector/klarna.rs
+++ b/crates/router/src/connector/klarna.rs
@@ -77,13 +77,10 @@ impl
         req: &types::PaymentsSessionRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -126,6 +123,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsSessionType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSessionType::get_headers(
                     self, req, connectors,
                 )?)
@@ -209,13 +207,10 @@ impl
         req: &types::PaymentsAuthorizeRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -289,6 +284,7 @@ impl
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
diff --git a/crates/router/src/connector/mollie.rs b/crates/router/src/connector/mollie.rs
index 1c1e461a59..559888c97f 100644
--- a/crates/router/src/connector/mollie.rs
+++ b/crates/router/src/connector/mollie.rs
@@ -145,6 +145,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -221,6 +222,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -326,6 +328,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -398,6 +401,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
diff --git a/crates/router/src/connector/multisafepay.rs b/crates/router/src/connector/multisafepay.rs
index e60717de93..50cea17b60 100644
--- a/crates/router/src/connector/multisafepay.rs
+++ b/crates/router/src/connector/multisafepay.rs
@@ -134,6 +134,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -231,6 +232,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -317,6 +319,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -390,6 +393,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
diff --git a/crates/router/src/connector/nuvei.rs b/crates/router/src/connector/nuvei.rs
index 5a5fde47e1..f2975e0166 100644
--- a/crates/router/src/connector/nuvei.rs
+++ b/crates/router/src/connector/nuvei.rs
@@ -138,6 +138,7 @@ impl
                 .url(&types::PaymentsComeplteAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsComeplteAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -218,6 +219,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
             .body(types::PaymentsVoidType::get_request_body(self, req)?)
             .build();
@@ -300,6 +302,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsSyncType::get_request_body(self, req)?)
                 .build(),
@@ -378,6 +381,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -526,6 +530,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -611,6 +616,7 @@ impl
                 .url(&types::PaymentsPreAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsPreAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -690,6 +696,7 @@ impl ConnectorIntegration<InitPayment, types::PaymentsAuthorizeData, types::Paym
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsInitType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsInitType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsInitType::get_request_body(self, req)?)
                 .build(),
@@ -781,6 +788,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
diff --git a/crates/router/src/connector/payu.rs b/crates/router/src/connector/payu.rs
index 536042acdb..c1acbc1857 100644
--- a/crates/router/src/connector/payu.rs
+++ b/crates/router/src/connector/payu.rs
@@ -136,6 +136,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
         let request = services::RequestBuilder::new()
             .method(services::Method::Delete)
             .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
             .build();
         Ok(Some(request))
@@ -214,6 +215,7 @@ impl ConnectorIntegration<api::AccessTokenAuth, types::AccessTokenRequestData, t
         let req = Some(
             services::RequestBuilder::new()
                 .method(services::Method::Post)
+                .attach_default_headers()
                 .headers(types::RefreshTokenType::get_headers(self, req, connectors)?)
                 .url(&types::RefreshTokenType::get_url(self, req, connectors)?)
                 .body(types::RefreshTokenType::get_request_body(self, req)?)
@@ -302,6 +304,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -384,6 +387,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(services::Method::Put)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -481,6 +485,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -565,6 +570,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -635,6 +641,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
diff --git a/crates/router/src/connector/rapyd.rs b/crates/router/src/connector/rapyd.rs
index 8b0bc896c0..e6db21fd8f 100644
--- a/crates/router/src/connector/rapyd.rs
+++ b/crates/router/src/connector/rapyd.rs
@@ -159,6 +159,7 @@ impl
             .url(&types::PaymentsAuthorizeType::get_url(
                 self, req, connectors,
             )?)
+            .attach_default_headers()
             .headers(types::PaymentsAuthorizeType::get_headers(
                 self, req, connectors,
             )?)
@@ -273,6 +274,7 @@ impl
         let request = services::RequestBuilder::new()
             .method(services::Method::Delete)
             .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
             .headers(headers)
             .build();
@@ -366,6 +368,7 @@ impl
         let request = services::RequestBuilder::new()
             .method(services::Method::Get)
             .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
             .headers(headers)
             .build();
@@ -457,6 +460,7 @@ impl
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::PaymentsCaptureType::get_headers(
                 self, req, connectors,
             )?)
@@ -578,6 +582,7 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(headers)
             .body(Some(rapyd_req))
             .build();
diff --git a/crates/router/src/connector/shift4.rs b/crates/router/src/connector/shift4.rs
index 074bd7197f..358402e3e3 100644
--- a/crates/router/src/connector/shift4.rs
+++ b/crates/router/src/connector/shift4.rs
@@ -156,6 +156,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -212,6 +213,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -311,6 +313,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -386,6 +389,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -455,6 +459,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
diff --git a/crates/router/src/connector/stripe.rs b/crates/router/src/connector/stripe.rs
index 982d0fcad7..953a6ca13e 100644
--- a/crates/router/src/connector/stripe.rs
+++ b/crates/router/src/connector/stripe.rs
@@ -98,13 +98,10 @@ impl
         req: &types::PaymentsCaptureRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                Self::common_get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            Self::common_get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -148,6 +145,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -210,13 +208,10 @@ impl
         req: &types::PaymentsSyncRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsSyncType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsSyncType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -250,6 +245,7 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsSyncType::get_request_body(self, req)?)
                 .build(),
@@ -313,13 +309,10 @@ impl
         req: &types::PaymentsAuthorizeRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsAuthorizeType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsAuthorizeType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -362,10 +355,10 @@ impl
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
-                .header(headers::X_ROUTER, "test")
                 .body(types::PaymentsAuthorizeType::get_request_body(self, req)?)
                 .build(),
         ))
@@ -424,13 +417,10 @@ impl
         req: &types::PaymentsCancelRouterData,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::PaymentsVoidType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::PaymentsVoidType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -472,6 +462,7 @@ impl
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
             .body(types::PaymentsVoidType::get_request_body(self, req)?)
             .build();
@@ -535,13 +526,10 @@ impl
         req: &types::RouterData<api::Verify, types::VerifyRequestData, types::PaymentsResponseData>,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                Verify::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            Verify::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -585,8 +573,8 @@ impl
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&Verify::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(Verify::get_headers(self, req, connectors)?)
-                .header(headers::X_ROUTER, "test")
                 .body(Verify::get_request_body(self, req)?)
                 .build(),
         ))
@@ -656,13 +644,10 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         req: &types::RefundsRouterData<api::Execute>,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::RefundExecuteType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::RefundExecuteType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -697,6 +682,7 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -754,13 +740,10 @@ impl services::ConnectorIntegration<api::RSync, types::RefundsData, types::Refun
         req: &types::RouterData<api::RSync, types::RefundsData, types::RefundsResponseData>,
         _connectors: &settings::Connectors,
     ) -> CustomResult<Vec<(String, String)>, errors::ConnectorError> {
-        let mut header = vec![
-            (
-                headers::CONTENT_TYPE.to_string(),
-                types::RefundSyncType::get_content_type(self).to_string(),
-            ),
-            (headers::X_ROUTER.to_string(), "test".to_string()),
-        ];
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            types::RefundSyncType::get_content_type(self).to_string(),
+        )];
         let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
         header.append(&mut api_key);
         Ok(header)
@@ -788,8 +771,8 @@ impl services::ConnectorIntegration<api::RSync, types::RefundsData, types::Refun
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
-                .header(headers::X_ROUTER, "test")
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
         ))
diff --git a/crates/router/src/connector/trustpay.rs b/crates/router/src/connector/trustpay.rs
index 204881dd71..b479c34454 100644
--- a/crates/router/src/connector/trustpay.rs
+++ b/crates/router/src/connector/trustpay.rs
@@ -183,6 +183,7 @@ impl ConnectorIntegration<api::AccessTokenAuth, types::AccessTokenRequestData, t
         let req = Some(
             services::RequestBuilder::new()
                 .method(services::Method::Post)
+                .attach_default_headers()
                 .headers(types::RefreshTokenType::get_headers(self, req, connectors)?)
                 .url(&types::RefreshTokenType::get_url(self, req, connectors)?)
                 .body(types::RefreshTokenType::get_request_body(self, req)?)
@@ -274,6 +275,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -381,6 +383,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -476,6 +479,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -555,6 +559,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
diff --git a/crates/router/src/connector/worldline.rs b/crates/router/src/connector/worldline.rs
index 88eed23a18..c3f7fed108 100644
--- a/crates/router/src/connector/worldline.rs
+++ b/crates/router/src/connector/worldline.rs
@@ -179,6 +179,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
             services::RequestBuilder::new()
                 .method(types::PaymentsVoidType::get_http_method(self))
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -257,6 +258,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(types::PaymentsSyncType::get_http_method(self))
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -351,6 +353,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(types::PaymentsCaptureType::get_http_method(self))
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -460,6 +463,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -545,6 +549,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(types::RefundExecuteType::get_http_method(self))
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -622,6 +627,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(types::RefundSyncType::get_http_method(self))
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .build(),
         ))
diff --git a/crates/router/src/connector/worldpay.rs b/crates/router/src/connector/worldpay.rs
index c0ef594bca..c682954b77 100644
--- a/crates/router/src/connector/worldpay.rs
+++ b/crates/router/src/connector/worldpay.rs
@@ -132,6 +132,7 @@ impl ConnectorIntegration<api::Void, types::PaymentsCancelData, types::PaymentsR
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsVoidType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsVoidType::get_headers(self, req, connectors)?)
                 .build(),
         ))
@@ -225,6 +226,7 @@ impl ConnectorIntegration<api::PSync, types::PaymentsSyncData, types::PaymentsRe
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
                 .body(types::PaymentsSyncType::get_request_body(self, req)?)
                 .build(),
@@ -286,6 +288,7 @@ impl ConnectorIntegration<api::Capture, types::PaymentsCaptureData, types::Payme
             services::RequestBuilder::new()
                 .method(services::Method::Post)
                 .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::PaymentsCaptureType::get_headers(
                     self, req, connectors,
                 )?)
@@ -397,6 +400,7 @@ impl ConnectorIntegration<api::Authorize, types::PaymentsAuthorizeData, types::P
                 .url(&types::PaymentsAuthorizeType::get_url(
                     self, req, connectors,
                 )?)
+                .attach_default_headers()
                 .headers(types::PaymentsAuthorizeType::get_headers(
                     self, req, connectors,
                 )?)
@@ -480,6 +484,7 @@ impl ConnectorIntegration<api::Execute, types::RefundsData, types::RefundsRespon
         let request = services::RequestBuilder::new()
             .method(services::Method::Post)
             .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
             .headers(types::RefundExecuteType::get_headers(
                 self, req, connectors,
             )?)
@@ -553,6 +558,7 @@ impl ConnectorIntegration<api::RSync, types::RefundsData, types::RefundsResponse
             services::RequestBuilder::new()
                 .method(services::Method::Get)
                 .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
                 .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
                 .body(types::RefundSyncType::get_request_body(self, req)?)
                 .build(),
diff --git a/crates/router/src/core/payment_methods/transformers.rs b/crates/router/src/core/payment_methods/transformers.rs
index a9ba79819e..a1e38c8439 100644
--- a/crates/router/src/core/payment_methods/transformers.rs
+++ b/crates/router/src/core/payment_methods/transformers.rs
@@ -563,7 +563,7 @@ pub fn mk_delete_card_request<'a>(
     let mut url = locker.host.to_owned();
     url.push_str("/card/deleteCard");
     let mut request = services::Request::new(services::Method::Post, &url);
-    request.add_header(headers::X_ROUTER, "test");
+    request.add_default_headers();
     request.add_header(headers::CONTENT_TYPE, "application/x-www-form-urlencoded");
 
     request.set_body(body);
@@ -611,7 +611,7 @@ pub fn mk_crud_locker_request(
     let mut url = locker.basilisk_host.to_owned();
     url.push_str(path);
     let mut request = services::Request::new(services::Method::Post, &url);
-    request.add_header(headers::X_ROUTER, "test");
+    request.add_default_headers();
     request.add_header(headers::CONTENT_TYPE, "application/json");
     request.set_body(body.to_string());
     Ok(request)
diff --git a/crates/router/src/lib.rs b/crates/router/src/lib.rs
index 4ac48d0723..42941ee0ff 100644
--- a/crates/router/src/lib.rs
+++ b/crates/router/src/lib.rs
@@ -52,7 +52,6 @@ pub mod headers {
     pub const X_API_KEY: &str = "X-API-KEY";
     pub const X_API_VERSION: &str = "X-ApiVersion";
     pub const X_MERCHANT_ID: &str = "X-Merchant-Id";
-    pub const X_ROUTER: &str = "X-router";
     pub const X_LOGIN: &str = "X-Login";
     pub const X_TRANS_KEY: &str = "X-Trans-Key";
     pub const X_VERSION: &str = "X-Version";
diff --git a/crates/router/src/services/api/request.rs b/crates/router/src/services/api/request.rs
index cc6ab747e6..90e994874f 100644
--- a/crates/router/src/services/api/request.rs
+++ b/crates/router/src/services/api/request.rs
@@ -30,6 +30,12 @@ pub enum ContentType {
     FormUrlEncoded,
 }
 
+fn default_request_headers() -> [(String, String); 1] {
+    use http::header;
+
+    [(header::VIA.to_string(), "HyperSwitch".into())]
+}
+
 #[derive(Debug, Serialize, Deserialize)]
 pub struct Request {
     pub url: String,
@@ -58,6 +64,10 @@ impl Request {
         self.payload = Some(body.into());
     }
 
+    pub fn add_default_headers(&mut self) {
+        self.headers.extend(default_request_headers());
+    }
+
     pub fn add_header(&mut self, header: &str, value: &str) {
         self.headers
             .insert((String::from(header), String::from(value)));
@@ -109,6 +119,11 @@ impl RequestBuilder {
         self
     }
 
+    pub fn attach_default_headers(mut self) -> Self {
+        self.headers.extend(default_request_headers());
+        self
+    }
+
     pub fn header(mut self, header: &str, value: &str) -> Self {
         self.headers.insert((header.into(), value.into()));
         self