diff --git a/frontend/src/app/features/calculator/services/quote-estimator.service.ts b/frontend/src/app/features/calculator/services/quote-estimator.service.ts
index 2965a8f..faa8a96 100644
--- a/frontend/src/app/features/calculator/services/quote-estimator.service.ts
+++ b/frontend/src/app/features/calculator/services/quote-estimator.service.ts
@@ -47,8 +47,15 @@ export class QuoteEstimatorService {
       formData.append('filament', this.mapMaterial(request.material));
       formData.append('quality', this.mapQuality(request.quality));
       
+      const headers: any = {};
+      // @ts-ignore
+      if (environment.basicAuth) {
+          // @ts-ignore
+          headers['Authorization'] = 'Basic ' + btoa(environment.basicAuth);
+      }
+      
       console.log(`Sending file: ${file.name} to ${environment.apiUrl}/api/quote`);
-      return this.http.post<BackendResponse>(`${environment.apiUrl}/api/quote`, formData).pipe(
+      return this.http.post<BackendResponse>(`${environment.apiUrl}/api/quote`, formData, { headers }).pipe(
         map(res => {
              console.log('Response for', file.name, res);
              return res;
diff --git a/frontend/src/environments/environment.prod.ts b/frontend/src/environments/environment.prod.ts
index ec59c25..008dae6 100644
--- a/frontend/src/environments/environment.prod.ts
+++ b/frontend/src/environments/environment.prod.ts
@@ -1,4 +1,5 @@
 export const environment = {
   production: true,
-  apiUrl: 'https://3d-fab.ch'
+  apiUrl: 'https://3d-fab.ch',
+  basicAuth: ''
 };
diff --git a/frontend/src/environments/environment.ts b/frontend/src/environments/environment.ts
index 837417a..f838d5c 100644
--- a/frontend/src/environments/environment.ts
+++ b/frontend/src/environments/environment.ts
@@ -1,4 +1,5 @@
 export const environment = {
   production: false,
-  apiUrl: 'http://localhost:8000'
+  apiUrl: 'http://localhost:8000',
+  basicAuth: '' // Format: 'username:password'
 };