diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index 3328a19eabe..0647789fcf5 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -773,6 +773,11 @@ declare module 'vscode' {
 	//#region Terminal
 
 	export namespace window {
+		/**
+		 * @readonly
+		 */
+		export let terminals: Terminal[];
+
 		export const onDidOpenTerminal: Event<Terminal>;
 	}
 
diff --git a/src/vs/workbench/api/node/extHost.api.impl.ts b/src/vs/workbench/api/node/extHost.api.impl.ts
index 3ccab97e133..b016a227a71 100644
--- a/src/vs/workbench/api/node/extHost.api.impl.ts
+++ b/src/vs/workbench/api/node/extHost.api.impl.ts
@@ -316,6 +316,9 @@ export function createApiFactory(
 			get visibleTextEditors() {
 				return extHostEditors.getVisibleTextEditors();
 			},
+			get terminals() {
+				return extHostTerminalService.terminals;
+			},
 			showTextDocument(documentOrUri: vscode.TextDocument | vscode.Uri, columnOrOptions?: vscode.ViewColumn | vscode.TextDocumentShowOptions, preserveFocus?: boolean): TPromise<vscode.TextEditor> {
 				let documentPromise: TPromise<vscode.TextDocument>;
 				if (URI.isUri(documentOrUri)) {
diff --git a/src/vs/workbench/api/node/extHostTerminalService.ts b/src/vs/workbench/api/node/extHostTerminalService.ts
index c0331705cf5..4950f7cab38 100644
--- a/src/vs/workbench/api/node/extHostTerminalService.ts
+++ b/src/vs/workbench/api/node/extHostTerminalService.ts
@@ -106,6 +106,8 @@ export class ExtHostTerminalService implements ExtHostTerminalServiceShape {
 	private _proxy: MainThreadTerminalServiceShape;
 	private _terminals: ExtHostTerminal[];
 
+	public get terminals(): ExtHostTerminal[] { return this._terminals; }
+
 	constructor(mainContext: IMainContext) {
 		this._onDidCloseTerminal = new Emitter<vscode.Terminal>();
 		this._onDidOpenTerminal = new Emitter<vscode.Terminal>();