diff --git a/package-lock.json b/package-lock.json
index 9884752..e38ad80 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@rocket.chat/apps-ts-definition",
-  "version": "0.9.12",
+  "version": "0.9.13",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/src/accessors/IRead.ts b/src/accessors/IRead.ts
index a08571f..20b46fa 100644
--- a/src/accessors/IRead.ts
+++ b/src/accessors/IRead.ts
@@ -3,6 +3,7 @@ import { IMessageRead } from './IMessageRead';
 import { INotifier } from './IModify';
 import { IPersistenceRead } from './IPersistenceRead';
 import { IRoomRead } from './IRoomRead';
+import { ISubscriptionRead } from './ISubscriptionRead';
 import { IUserRead } from './IUserRead';
 
 /**
@@ -23,6 +24,9 @@ export interface IRead {
     /** Gets the IRoomRead instance. */
     getRoomReader(): IRoomRead;
 
+    /** Gets the ISubscriptionRead instance */
+    getSubscriptionReader(): ISubscriptionRead;
+
     /** Gets the IUserRead instance. */
     getUserReader(): IUserRead;
 
diff --git a/src/accessors/ISubscriptionRead.ts b/src/accessors/ISubscriptionRead.ts
new file mode 100644
index 0000000..b30e0e2
--- /dev/null
+++ b/src/accessors/ISubscriptionRead.ts
@@ -0,0 +1,15 @@
+import { ISubscription } from '../subscriptions/ISubscription';
+
+/**
+ * This accessor provides methods for accessing
+ * subscriptions in a read-only-fashion.
+ */
+export interface ISubscriptionRead {
+    /**
+     * Gets a list of subscriptions by a room id.
+     *
+     * @param roomId the id of the room
+     * @returns an iterator of subscriptions
+     */
+    getByRoomId(roomId: string): Promise<IterableIterator<ISubscription>>;
+}
diff --git a/src/accessors/index.ts b/src/accessors/index.ts
index bad8de8..cf77eb6 100644
--- a/src/accessors/index.ts
+++ b/src/accessors/index.ts
@@ -36,6 +36,7 @@ import { ISettingRead } from './ISettingRead';
 import { ISettingsExtend } from './ISettingsExtend';
 import { ISlashCommandsExtend } from './ISlashCommandsExtend';
 import { ISlashCommandsModify } from './ISlashCommandsModify';
+import { ISubscriptionRead } from './ISubscriptionRead';
 import { IUserRead } from './IUserRead';
 
 export {
@@ -72,6 +73,7 @@ export {
     ISettingsExtend,
     ISlashCommandsExtend,
     ISlashCommandsModify,
+    ISubscriptionRead,
     IUserRead,
     LogMessageSeverity,
     RequestMethod,
diff --git a/src/subscriptions/ISubscription.ts b/src/subscriptions/ISubscription.ts
new file mode 100644
index 0000000..3c3b21e
--- /dev/null
+++ b/src/subscriptions/ISubscription.ts
@@ -0,0 +1,3 @@
+export interface ISubscription {
+    id: string;
+}
diff --git a/src/subscriptions/index.ts b/src/subscriptions/index.ts
new file mode 100644
index 0000000..669c044
--- /dev/null
+++ b/src/subscriptions/index.ts
@@ -0,0 +1,2 @@
+import { ISubscription } from './ISubscription';
+export { ISubscription };