diff --git a/desktop/app/src/utils/flipperLibImplementation.tsx b/desktop/app/src/utils/flipperLibImplementation.tsx
index 742990bcc..0028685ef 100644
--- a/desktop/app/src/utils/flipperLibImplementation.tsx
+++ b/desktop/app/src/utils/flipperLibImplementation.tsx
@@ -11,6 +11,7 @@ import type {FlipperLib} from 'flipper-plugin';
 import type {Logger} from '../fb-interfaces/Logger';
 import type {Store} from '../reducers';
 import createPaste from '../fb-stubs/createPaste';
+import GK from '../fb-stubs/GK';
 
 let flipperLibInstance: FlipperLib | undefined;
 
@@ -25,6 +26,9 @@ export function initializeFlipperLibImplementation(
       addSandyPluginEntries(entries);
     },
     createPaste,
+    GK(gatekeeper: string) {
+      return GK.get(gatekeeper);
+    },
   };
 }
 
diff --git a/desktop/flipper-plugin/src/__tests__/test-utils.node.tsx b/desktop/flipper-plugin/src/__tests__/test-utils.node.tsx
index cd222bc06..449f29aa7 100644
--- a/desktop/flipper-plugin/src/__tests__/test-utils.node.tsx
+++ b/desktop/flipper-plugin/src/__tests__/test-utils.node.tsx
@@ -401,3 +401,31 @@ test('available methods can be overridden', async () => {
   );
   expect(await plugin.instance.checkEnabled()).toBeFalsy();
 });
+
+test('GKs are supported', () => {
+  const pluginModule = {
+    plugin(client: PluginClient<{}, {}>) {
+      return {
+        isTest() {
+          return client.GK('bla');
+        },
+      };
+    },
+    Component() {
+      return null;
+    },
+  };
+
+  {
+    const plugin = TestUtils.startPlugin(pluginModule);
+    expect(plugin.instance.isTest()).toBe(false);
+  }
+  {
+    const plugin = TestUtils.startPlugin(pluginModule, {GKs: ['bla']});
+    expect(plugin.instance.isTest()).toBe(true);
+  }
+  {
+    const plugin = TestUtils.startPlugin(pluginModule, {GKs: ['x']});
+    expect(plugin.instance.isTest()).toBe(false);
+  }
+});
diff --git a/desktop/flipper-plugin/src/plugin/FlipperLib.tsx b/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
index 4e6ecdff6..485fdfb3b 100644
--- a/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
+++ b/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
@@ -15,4 +15,5 @@ import {NormalizedMenuEntry} from './MenuEntry';
 export interface FlipperLib {
   enableMenuEntries(menuEntries: NormalizedMenuEntry[]): void;
   createPaste(input: string): Promise<string | undefined>;
+  GK(gatekeeper: string): boolean;
 }
diff --git a/desktop/flipper-plugin/src/plugin/PluginBase.tsx b/desktop/flipper-plugin/src/plugin/PluginBase.tsx
index 15e6f3723..97481ca53 100644
--- a/desktop/flipper-plugin/src/plugin/PluginBase.tsx
+++ b/desktop/flipper-plugin/src/plugin/PluginBase.tsx
@@ -48,6 +48,12 @@ export interface BasePluginClient {
    * Facebook only function. Resolves to undefined if creating a paste failed.
    */
   createPaste(input: string): Promise<string | undefined>;
+
+  /**
+   * Returns true if the user is taking part in the given gatekeeper.
+   * Always returns `false` in open source.
+   */
+  GK(gkName: string): boolean;
 }
 
 let currentPluginInstance: BasePluginInstance | undefined = undefined;
@@ -155,6 +161,7 @@ export abstract class BasePluginInstance {
         }
       },
       createPaste: this.flipperLib.createPaste,
+      GK: this.flipperLib.GK,
     };
   }
 
diff --git a/desktop/flipper-plugin/src/test-utils/test-utils.tsx b/desktop/flipper-plugin/src/test-utils/test-utils.tsx
index d01de0fee..1b43662b3 100644
--- a/desktop/flipper-plugin/src/test-utils/test-utils.tsx
+++ b/desktop/flipper-plugin/src/test-utils/test-utils.tsx
@@ -46,6 +46,10 @@ interface StartPluginOptions {
   startUnactivated?: boolean;
   /** Provide a set of unsupported methods to simulate older clients that don't support certain methods yet */
   unsupportedMethods?: string[];
+  /**
+   * Provide a set of GKs that are enabled in this test.
+   */
+  GKs?: string[];
 }
 
 type ExtractClientType<Module extends FlipperPluginModule<any>> = Parameters<
@@ -179,7 +183,7 @@ export function startPlugin<Module extends FlipperPluginModule<any>>(
   }
 
   const sendStub = jest.fn();
-  const flipperUtils = createMockFlipperLib();
+  const flipperUtils = createMockFlipperLib(options);
   const testDevice = createMockDevice(options);
   const appName = 'TestApplication';
   const deviceName = 'TestDevice';
@@ -290,7 +294,7 @@ export function startDevicePlugin<Module extends FlipperDevicePluginModule>(
     );
   }
 
-  const flipperLib = createMockFlipperLib();
+  const flipperLib = createMockFlipperLib(options);
   const testDevice = createMockDevice(options);
   const pluginInstance = new SandyDevicePluginInstance(
     flipperLib,
@@ -340,10 +344,13 @@ export function renderDevicePlugin<Module extends FlipperDevicePluginModule>(
   };
 }
 
-export function createMockFlipperLib(): FlipperLib {
+export function createMockFlipperLib(options?: StartPluginOptions): FlipperLib {
   return {
     enableMenuEntries: jest.fn(),
     createPaste: jest.fn(),
+    GK(gk: string) {
+      return options?.GKs?.includes(gk) || false;
+    },
   };
 }
 
diff --git a/docs/extending/flipper-plugin.mdx b/docs/extending/flipper-plugin.mdx
index 8e593c1b5..59573fa73 100644
--- a/docs/extending/flipper-plugin.mdx
+++ b/docs/extending/flipper-plugin.mdx
@@ -218,6 +218,14 @@ The returned promise either contains a string with the URL of the paste, or `und
 Details of the failure will be communicated back directly to the user through Flipper notifications.
 For example if the user is currently not signed in.
 
+#### `GK`
+
+Facebook only API.
+
+Usage: `client.GK(gatekeeper: string): boolean`
+
+Returns `true` if the current user is part of the given GK. `false` in all other cases.
+
 ## DevicePluginClient
 
 ### Properties
@@ -435,6 +443,7 @@ The `options` argument is optional, but can specify the following fields:
 * `isArchived: boolean`: Setting this flag, will set the `isArchived` on the mocked device as well. Set it if you want to test the behavior of your plugin for imported devices (see also [`Device.isArchived`](#isarchived)). Defaults to `false`.
 * `isBackgroundPlugin`: This makes sure the test runner emits life-cycle events in a way that is typical for background plugins. Defaults to `false`. The notable difference in behavior is that calling `.active()` on the test runner won't trigger the `connect` event to be fired, nor the `.deactivate()` the `disconnect` event.
 * `startUnactivated`: This does not activate the plugin; `connect` needs to be explicitly called. This can be used in case setting mock implementation for `onSend` is required to make sure Client plugin works as expected. Defaults to `false`.
+* `GKs`: A string array of gatekeeper names for which `client.GK` will `true` inside the test. By default GKs are assumed to be disabled inside unit tests.
 
 #### The test runner object