diff --git a/api/src/engine/connectors/exareme/main.connector.ts b/api/src/engine/connectors/exareme/main.connector.ts
index 146fb4308b44b7a189b1f31cadcd37e0c35cd8c0..553fb0a9e567040281c9324adf25d83cf1ac6e76 100644
--- a/api/src/engine/connectors/exareme/main.connector.ts
+++ b/api/src/engine/connectors/exareme/main.connector.ts
@@ -8,6 +8,7 @@ import {
 } from '@nestjs/common';
 import { REQUEST } from '@nestjs/core';
 import { Request } from 'express';
+import { IncomingMessage } from 'http';
 import { firstValueFrom, map, Observable } from 'rxjs';
 import { ENGINE_MODULE_OPTIONS } from 'src/engine/engine.constants';
 import { IEngineOptions, IEngineService } from 'src/engine/engine.interfaces';
@@ -37,16 +38,23 @@ import { Pathology } from './interfaces/pathology.interface';
 
 @Injectable()
 export default class ExaremeService implements IEngineService {
+  headers = {};
   constructor(
     @Inject(ENGINE_MODULE_OPTIONS) private readonly options: IEngineOptions,
     private readonly httpService: HttpService,
-    @Inject(REQUEST) private readonly req: Request,
-  ) {}
+    @Inject(REQUEST) private readonly req: Request, //TODO: remove inject, set request from manually take care of graphql request
+  ) {
+    const gqlRequest = req['req']; // graphql headers exception
+    this.headers =
+      gqlRequest && gqlRequest instanceof IncomingMessage
+        ? gqlRequest.headers
+        : req.headers;
+  }
 
   async logout() {
     const path = `${this.options.baseurl}logout`;
 
-    await firstValueFrom(this.httpService.get(path));
+    await firstValueFrom(this.httpService.get(path, { headers: this.headers }));
   }
 
   async createExperiment(
@@ -59,7 +67,9 @@ export default class ExaremeService implements IEngineService {
       this.options.baseurl + `experiments${isTransient ? '/transient' : ''}`;
 
     const resultAPI = await firstValueFrom(
-      this.httpService.post<ExperimentData>(path, form),
+      this.httpService.post<ExperimentData>(path, form, {
+        headers: this.headers,
+      }),
     );
 
     return dataToExperiment(resultAPI.data);
@@ -69,7 +79,10 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + 'experiments';
 
     const resultAPI = await firstValueFrom(
-      this.httpService.get<ExperimentsData>(path, { params: { page, name } }),
+      this.httpService.get<ExperimentsData>(path, {
+        params: { page, name },
+        headers: this.headers,
+      }),
     );
 
     return {
@@ -81,7 +94,11 @@ export default class ExaremeService implements IEngineService {
   async getAlgorithms(): Promise<Algorithm[]> {
     const path = this.options.baseurl + 'algorithms';
 
-    const resultAPI = await firstValueFrom(this.httpService.get<string>(path));
+    const resultAPI = await firstValueFrom(
+      this.httpService.get<string>(path, {
+        headers: this.headers,
+      }),
+    );
 
     return dataToAlgorithms(resultAPI.data);
   }
@@ -90,7 +107,9 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + `experiments/${uuid}`;
 
     const resultAPI = await firstValueFrom(
-      this.httpService.get<ExperimentData>(path),
+      this.httpService.get<ExperimentData>(path, {
+        headers: this.headers,
+      }),
     );
 
     return dataToExperiment(resultAPI.data);
@@ -103,7 +122,9 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + `experiments/${uuid}`;
 
     const resultAPI = await firstValueFrom(
-      this.httpService.patch<ExperimentData>(path, expriment),
+      this.httpService.patch<ExperimentData>(path, expriment, {
+        headers: this.headers,
+      }),
     );
 
     return dataToExperiment(resultAPI.data);
@@ -113,7 +134,11 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + `experiments/${uuid}`;
 
     try {
-      await firstValueFrom(this.httpService.delete(path));
+      await firstValueFrom(
+        this.httpService.delete(path, {
+          headers: this.headers,
+        }),
+      );
       return {
         uuid: uuid,
       };
@@ -127,7 +152,9 @@ export default class ExaremeService implements IEngineService {
 
     try {
       const data = await firstValueFrom(
-        this.httpService.get<Pathology[]>(path),
+        this.httpService.get<Pathology[]>(path, {
+          headers: this.headers,
+        }),
       );
 
       return (
@@ -160,7 +187,9 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + 'activeUser';
 
     return this.httpService
-      .get<string>(path)
+      .get<string>(path, {
+        headers: this.req.headers,
+      })
       .pipe(map((response) => response.data));
   }
 
@@ -168,7 +197,9 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + 'activeUser/agreeNDA';
 
     return this.httpService
-      .post<string>(path, this.req.body)
+      .post<string>(path, this.req.body, {
+        headers: this.req.headers,
+      })
       .pipe(map((response) => response.data));
   }
 
@@ -176,21 +207,29 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + `experiments/${uuid}`;
 
     return this.httpService
-      .get<string>(path)
+      .get<string>(path, {
+        headers: this.req.headers,
+      })
       .pipe(map((response) => response.data));
   }
 
   deleteExperiment(uuid: string): Observable<string> {
     const path = this.options.baseurl + `experiments/${uuid}`;
 
-    return this.httpService.delete(path).pipe(map((response) => response.data));
+    return this.httpService
+      .delete(path, {
+        headers: this.req.headers,
+      })
+      .pipe(map((response) => response.data));
   }
 
   editExperimentREST(uuid: string): Observable<string> {
     const path = this.options.baseurl + `experiments/${uuid}`;
 
     return this.httpService
-      .patch(path, this.req.body)
+      .patch(path, this.req.body, {
+        headers: this.req.headers,
+      })
       .pipe(map((response) => response.data));
   }
 
@@ -198,7 +237,9 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + 'experiments/transient';
 
     return this.httpService
-      .post(path, this.req.body)
+      .post(path, this.req.body, {
+        headers: this.req.headers,
+      })
       .pipe(map((response) => response.data));
   }
 
@@ -206,7 +247,9 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + 'experiments';
 
     return this.httpService
-      .post(path, this.req.body)
+      .post(path, this.req.body, {
+        headers: this.req.headers,
+      })
       .pipe(map((response) => response.data));
   }
 
@@ -214,7 +257,7 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + 'experiments';
 
     return this.httpService
-      .get<string>(path, { params: this.req.query })
+      .get<string>(path, { params: this.req.query, headers: this.headers })
       .pipe(map((response) => response.data));
   }
 
@@ -222,7 +265,7 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + 'algorithms';
 
     return this.httpService
-      .get<string>(path, { params: this.req.query })
+      .get<string>(path, { params: this.req.query, headers: this.headers })
       .pipe(map((response) => response.data));
   }
 
@@ -230,7 +273,7 @@ export default class ExaremeService implements IEngineService {
     const path = this.options.baseurl + suffix;
 
     return this.httpService
-      .get<string>(path, { params: this.req.query })
+      .get<string>(path, { params: this.req.query, headers: this.headers })
       .pipe(map((response) => response.data));
   }
 
diff --git a/api/src/engine/engine.controller.ts b/api/src/engine/engine.controller.ts
index e56fa8e7ef75d1b50b233fa28f548129126f790f..3bb5d7fd380728aea66dc54447531df64c5a3225 100644
--- a/api/src/engine/engine.controller.ts
+++ b/api/src/engine/engine.controller.ts
@@ -6,14 +6,11 @@ import {
   Param,
   Patch,
   Post,
-  UseInterceptors,
 } from '@nestjs/common';
 import { Observable } from 'rxjs';
 import { ENGINE_SERVICE } from './engine.constants';
 import { IEngineService } from './engine.interfaces';
-import { HeadersInterceptor } from './interceptors/headers.interceptor';
 
-@UseInterceptors(HeadersInterceptor)
 @Controller()
 export class EngineController {
   constructor(
diff --git a/api/src/engine/engine.resolver.ts b/api/src/engine/engine.resolver.ts
index 6e23ba38ca26d1129e51abb7cbba8d311cad67b9..0cfac3a5b1fdc02c82b74cd31928a554c45bc550 100644
--- a/api/src/engine/engine.resolver.ts
+++ b/api/src/engine/engine.resolver.ts
@@ -1,8 +1,7 @@
-import { Inject, UseInterceptors } from '@nestjs/common';
+import { Inject } from '@nestjs/common';
 import { Args, Mutation, Query, Resolver } from '@nestjs/graphql';
 import { ENGINE_SERVICE } from './engine.constants';
 import { IEngineService } from './engine.interfaces';
-import { HeadersInterceptor } from './interceptors/headers.interceptor';
 import { Domain } from './models/domain.model';
 import { Algorithm } from './models/experiment/algorithm.model';
 import {
@@ -13,7 +12,6 @@ import { ExperimentCreateInput } from './models/experiment/input/experiment-crea
 import { ExperimentEditInput } from './models/experiment/input/experiment-edit.input';
 import { ListExperiments } from './models/experiment/list-experiments.model';
 
-@UseInterceptors(HeadersInterceptor)
 @Resolver()
 export class EngineResolver {
   constructor(