diff --git a/src/app/services/rest/instance.service.ts b/src/app/services/rest/instance.service.ts
new file mode 100644
index 0000000..c864e54
--- /dev/null
+++ b/src/app/services/rest/instance.service.ts
@@ -0,0 +1,25 @@
+/// <reference path="../../../../typings/index.d.ts"/>
+
+// Imports
+import {AppConfig} from '../../config/app.config';
+import {AuthService} from './auth.service';
+import { Injectable }     from '@angular/core';
+import { Http, Response, Headers } from '@angular/http';
+import {XosHttp} from './xoshttp.service';
+import {Observable} from 'rxjs/Rx';
+
+// Import RxJs required methods
+import 'rxjs/add/operator/map';
+import 'rxjs/add/operator/catch';
+
+@Injectable()
+export class InstanceService {
+  private baseUrl = AppConfig.apiEndpoint;
+  constructor (private http: XosHttp, private authService: AuthService) {}
+  // Fetch all existing instances
+  query() : Observable<any[]> {
+    return this.http.get(`${this.baseUrl}/core/instances/`)
+      .map((res: Response) => res.json())
+      .catch((error: any) => Observable.throw(error.response.json().error || 'Server error'));
+  }
+}