diff --git a/lib/providers/collection_providers.dart b/lib/providers/collection_providers.dart
index e46820a6..0fc8d387 100644
--- a/lib/providers/collection_providers.dart
+++ b/lib/providers/collection_providers.dart
@@ -318,6 +318,8 @@ class CollectionStateNotifier
     var responseRec = await sendHttpRequest(
       requestId,
       apiType,
+      requestModel.authData,
+      requestModel.authType,
       substitutedHttpRequestModel,
       defaultUriScheme: defaultUriScheme,
       noSSL: noSSL,
diff --git a/packages/apidash_core/lib/utils/handle_auth.dart b/packages/apidash_core/lib/utils/handle_auth.dart
new file mode 100644
index 00000000..f626269b
--- /dev/null
+++ b/packages/apidash_core/lib/utils/handle_auth.dart
@@ -0,0 +1,76 @@
+import 'dart:convert';
+import 'package:apidash_core/consts.dart';
+import 'package:apidash_core/models/api_auth_model.dart';
+import 'package:apidash_core/models/http_request_model.dart';
+import 'package:seed/seed.dart';
+
+HttpRequestModel handleAuth(HttpRequestModel httpRequestModel,
+    APIAuthType apiAuthType, APIAuthModel? authData) {
+  if (authData == null || apiAuthType == APIAuthType.none) {
+    return httpRequestModel;
+  }
+
+  List<NameValueModel> updatedHeaders = List.from(httpRequestModel.headers ?? []);
+  List<NameValueModel> updatedParams = List.from(httpRequestModel.params ?? []);
+  List<bool> updatedHeaderEnabledList = List.from(httpRequestModel.isHeaderEnabledList ?? []);
+  List<bool> updatedParamEnabledList = List.from(httpRequestModel.isParamEnabledList ?? []);
+
+  switch (apiAuthType) {
+    case APIAuthType.basic:
+      final auth = authData as BasicAuth;
+      final encoded =
+          base64Encode(utf8.encode('${auth.username}:${auth.password}'));
+      updatedHeaders.add(const NameValueModel(name: 'Authorization', value: ''));
+      updatedHeaders[updatedHeaders.length - 1] = NameValueModel(
+        name: 'Authorization', 
+        value: 'Basic $encoded'
+      );
+      updatedHeaderEnabledList.add(true);
+      break;
+
+    case APIAuthType.bearerToken:
+      final auth = authData as BearerTokenAuth;
+      updatedHeaders.add(NameValueModel(
+        name: 'Authorization', 
+        value: 'Bearer ${auth.token}'
+      ));
+      updatedHeaderEnabledList.add(true);
+      break;
+
+    case APIAuthType.jwtBearer:
+      final auth = authData as JWTBearerAuth;
+      updatedHeaders.add(NameValueModel(
+        name: 'Authorization', 
+        value: 'Bearer ${auth.jwt}'
+      ));
+      updatedHeaderEnabledList.add(true);
+      break;
+
+    case APIAuthType.apiKey:
+      final auth = authData as APIKeyAuth;
+      if (auth.location == 'header') {
+        updatedHeaders.add(NameValueModel(
+          name: auth.name, 
+          value: auth.key
+        ));
+        updatedHeaderEnabledList.add(true);
+      } else if (auth.location == 'query') {
+        updatedParams.add(NameValueModel(
+          name: auth.name, 
+          value: auth.key
+        ));
+        updatedParamEnabledList.add(true);
+      }
+      break;
+
+    default:
+      break;
+  }
+
+  return httpRequestModel.copyWith(
+    headers: updatedHeaders,
+    params: updatedParams,
+    isHeaderEnabledList: updatedHeaderEnabledList,
+    isParamEnabledList: updatedParamEnabledList,
+  );
+}
diff --git a/packages/better_networking/lib/services/http_service.dart b/packages/better_networking/lib/services/http_service.dart
index 31c7ef06..087521dd 100644
--- a/packages/better_networking/lib/services/http_service.dart
+++ b/packages/better_networking/lib/services/http_service.dart
@@ -7,6 +7,7 @@ import '../consts.dart';
 import '../extensions/extensions.dart';
 import '../models/models.dart';
 import '../utils/utils.dart';
+import '../utils/handle_auth.dart';
 import 'http_client_manager.dart';
 
 typedef HttpResponse = http.Response;
@@ -16,6 +17,8 @@ final httpClientManager = HttpClientManager();
 Future<(HttpResponse?, Duration?, String?)> sendHttpRequest(
   String requestId,
   APIType apiType,
+  APIAuthModel? authData,
+  APIAuthType apiAuthType,
   HttpRequestModel requestModel, {
   SupportedUriSchemes defaultUriScheme = kDefaultUriScheme,
   bool noSSL = false,
@@ -25,15 +28,19 @@ Future<(HttpResponse?, Duration?, String?)> sendHttpRequest(
   }
   final client = httpClientManager.createClient(requestId, noSSL: noSSL);
 
+  // Handle authentication
+  final authenticatedRequestModel =
+      handleAuth(requestModel, apiAuthType, authData);
+
   (Uri?, String?) uriRec = getValidRequestUri(
-    requestModel.url,
-    requestModel.enabledParams,
+    authenticatedRequestModel.url,
+    authenticatedRequestModel.enabledParams,
     defaultUriScheme: defaultUriScheme,
   );
 
   if (uriRec.$1 != null) {
     Uri requestUrl = uriRec.$1!;
-    Map<String, String> headers = requestModel.enabledHeadersMap;
+    Map<String, String> headers = authenticatedRequestModel.enabledHeadersMap;
     bool overrideContentType = false;
     HttpResponse? response;
     String? body;
@@ -43,26 +50,26 @@ Future<(HttpResponse?, Duration?, String?)> sendHttpRequest(
         var isMultiPartRequest =
             requestModel.bodyContentType == ContentType.formdata;
 
-        if (kMethodsWithBody.contains(requestModel.method)) {
-          var requestBody = requestModel.body;
+        if (kMethodsWithBody.contains(authenticatedRequestModel.method)) {
+          var requestBody = authenticatedRequestModel.body;
           if (requestBody != null &&
               !isMultiPartRequest &&
               requestBody.isNotEmpty) {
             body = requestBody;
-            if (requestModel.hasContentTypeHeader) {
+            if (authenticatedRequestModel.hasContentTypeHeader) {
               overrideContentType = true;
             } else {
               headers[HttpHeaders.contentTypeHeader] =
-                  requestModel.bodyContentType.header;
+                  authenticatedRequestModel.bodyContentType.header;
             }
           }
           if (isMultiPartRequest) {
             var multiPartRequest = http.MultipartRequest(
-              requestModel.method.name.toUpperCase(),
+              authenticatedRequestModel.method.name.toUpperCase(),
               requestUrl,
             );
             multiPartRequest.headers.addAll(headers);
-            for (var formData in requestModel.formDataList) {
+            for (var formData in authenticatedRequestModel.formDataList) {
               if (formData.type == FormDataType.text) {
                 multiPartRequest.fields.addAll({formData.name: formData.value});
               } else {
@@ -84,7 +91,7 @@ Future<(HttpResponse?, Duration?, String?)> sendHttpRequest(
             return (convertedMultiPartResponse, stopwatch.elapsed, null);
           }
         }
-        switch (requestModel.method) {
+        switch (authenticatedRequestModel.method) {
           case HTTPVerb.get:
             response = await client.get(requestUrl, headers: headers);
             break;
@@ -98,7 +105,7 @@ Future<(HttpResponse?, Duration?, String?)> sendHttpRequest(
           case HTTPVerb.options:
             final request = prepareHttpRequest(
               url: requestUrl,
-              method: requestModel.method.name.toUpperCase(),
+              method: authenticatedRequestModel.method.name.toUpperCase(),
               headers: headers,
               body: body,
               overrideContentType: overrideContentType,
@@ -109,13 +116,13 @@ Future<(HttpResponse?, Duration?, String?)> sendHttpRequest(
         }
       }
       if (apiType == APIType.graphql) {
-        var requestBody = getGraphQLBody(requestModel);
+        var requestBody = getGraphQLBody(authenticatedRequestModel);
         if (requestBody != null) {
           var contentLength = utf8.encode(requestBody).length;
           if (contentLength > 0) {
             body = requestBody;
             headers[HttpHeaders.contentLengthHeader] = contentLength.toString();
-            if (!requestModel.hasContentTypeHeader) {
+            if (!authenticatedRequestModel.hasContentTypeHeader) {
               headers[HttpHeaders.contentTypeHeader] = ContentType.json.header;
             }
           }