diff --git a/web/static/src/ts/env.ts b/web/static/src/ts/env.ts
index 19d74907..7d3ef5e7 100644
--- a/web/static/src/ts/env.ts
+++ b/web/static/src/ts/env.ts
@@ -1,8 +1,8 @@
 import { QWeb } from "./core/qweb_vdom";
 import { idGenerator } from "./core/utils";
 import { WEnv } from "./core/widget";
-import { ActionManager } from "./services/action_manager";
-import { Ajax } from "./services/ajax";
+import { ActionManager, IActionManager } from "./services/action_manager";
+import { Ajax, IAjax } from "./services/ajax";
 import { Router, IRouter } from "./services/router";
 
 export interface Menu {
@@ -11,10 +11,11 @@ export interface Menu {
 }
 
 export interface Env extends WEnv {
-  actionManager: ActionManager;
-  ajax: Ajax;
+  actionManager: IActionManager;
+  ajax: IAjax;
   router: IRouter;
   menus: Menu[];
+  rpc: IAjax["rpc"];
 }
 
 export function makeEnvironment(): Env {
@@ -28,11 +29,17 @@ export function makeEnvironment(): Env {
   ];
 
   return {
+    // Base widget requirements
     qweb,
+    getID: idGenerator(),
+
+    // services
     ajax,
     router,
     actionManager,
     menus,
-    getID: idGenerator()
+
+    // helpers
+    rpc: ajax.rpc
   };
 }
diff --git a/web/static/src/ts/services/action_manager.ts b/web/static/src/ts/services/action_manager.ts
index 1d682917..65822477 100644
--- a/web/static/src/ts/services/action_manager.ts
+++ b/web/static/src/ts/services/action_manager.ts
@@ -1,4 +1,4 @@
-import { EventBus } from "../core/event_bus";
+import { EventBus, Callback } from "../core/event_bus";
 import { Widget } from "../core/widget";
 import { Env } from "../env";
 import { CRM } from "../widgets/crm";
@@ -19,6 +19,14 @@ interface ActWindowAction {
   views: string[];
 }
 
+type ActionEvent = "action_ready";
+
+export interface IActionManager {
+  doAction(actionID: number);
+  on(event: ActionEvent, owner: any, callback: Callback);
+  getCurrentAction(): ActionWidget | null;
+}
+
 export type Action = ClientAction | ActWindowAction;
 
 export interface ActionWidget {
@@ -32,7 +40,7 @@ const actions: any[] = [
   { id: 2, title: "CRM", Widget: CRM }
 ];
 
-export class ActionManager extends EventBus {
+export class ActionManager extends EventBus implements IActionManager {
   router: IRouter;
   currentAction: ActionWidget | null = null;
 
diff --git a/web/static/src/ts/services/ajax.ts b/web/static/src/ts/services/ajax.ts
index a7d48ab9..8d49a435 100644
--- a/web/static/src/ts/services/ajax.ts
+++ b/web/static/src/ts/services/ajax.ts
@@ -1 +1,14 @@
-export class Ajax {}
+export interface RPC {
+  model: string;
+  method: string;
+  args: any;
+}
+export interface IAjax {
+  rpc(rpc: RPC): Promise<any>;
+}
+
+export class Ajax implements IAjax {
+  rpc(rpc: RPC): Promise<any> {
+    return Promise.resolve(1);
+  }
+}