diff --git a/desktop/app/src/Client.tsx b/desktop/app/src/Client.tsx
index 8ced63073..7e8c492e0 100644
--- a/desktop/app/src/Client.tsx
+++ b/desktop/app/src/Client.tsx
@@ -40,6 +40,7 @@ import {debounce} from 'lodash';
 import {batch} from 'react-redux';
 import {SandyPluginInstance} from 'flipper-plugin';
 import {flipperMessagesClientPlugin} from './utils/self-inspection/plugins/FlipperMessagesClientPlugin';
+import {getFlipperLibImplementation} from './utils/flipperLibImplementation';
 
 type Plugins = Array<string>;
 
@@ -310,7 +311,12 @@ export default class Client extends EventEmitter {
         // TODO: needs to be wrapped in error tracking T68955280
         this.sandyPluginStates.set(
           plugin.id,
-          new SandyPluginInstance(this, plugin, initialStates[pluginId]),
+          new SandyPluginInstance(
+            getFlipperLibImplementation(),
+            plugin,
+            this,
+            initialStates[pluginId],
+          ),
         );
       }
     });
@@ -355,7 +361,7 @@ export default class Client extends EventEmitter {
       // TODO: needs to be wrapped in error tracking T68955280
       this.sandyPluginStates.set(
         plugin.id,
-        new SandyPluginInstance(this, plugin),
+        new SandyPluginInstance(getFlipperLibImplementation(), plugin, this),
       );
     }
   }
diff --git a/desktop/app/src/MenuBar.tsx b/desktop/app/src/MenuBar.tsx
index 82b5f4eeb..24bc7a1bd 100644
--- a/desktop/app/src/MenuBar.tsx
+++ b/desktop/app/src/MenuBar.tsx
@@ -26,8 +26,9 @@ import electron, {MenuItemConstructorOptions} from 'electron';
 import {notNull} from './utils/typeUtils';
 import constants from './fb-stubs/constants';
 import {Logger} from './fb-interfaces/Logger';
+import {NormalizedMenuEntry, buildInMenuEntries} from 'flipper-plugin';
 
-export type DefaultKeyboardAction = 'clear' | 'goToBottom' | 'createPaste';
+export type DefaultKeyboardAction = keyof typeof buildInMenuEntries;
 export type TopLevelMenu = 'Edit' | 'View' | 'Window' | 'Help';
 
 export type KeyboardAction = {
@@ -37,26 +38,6 @@ export type KeyboardAction = {
   topLevelMenu: TopLevelMenu;
 };
 
-const defaultKeyboardActions: Array<KeyboardAction> = [
-  {
-    label: 'Clear',
-    accelerator: 'CmdOrCtrl+K',
-    topLevelMenu: 'View',
-    action: 'clear',
-  },
-  {
-    label: 'Go To Bottom',
-    accelerator: 'CmdOrCtrl+B',
-    topLevelMenu: 'View',
-    action: 'goToBottom',
-  },
-  {
-    label: 'Create Paste',
-    topLevelMenu: 'Edit',
-    action: 'createPaste',
-  },
-];
-
 export type KeyboardActions = Array<DefaultKeyboardAction | KeyboardAction>;
 
 const menuItems: Map<string, electron.MenuItem> = new Map();
@@ -82,14 +63,12 @@ export function setupMenuBar(
     logger,
   );
   // collect all keyboard actions from all plugins
-  const registeredActions: Set<KeyboardAction> = new Set(
+  const registeredActions = new Set(
     plugins
       .map((plugin) => plugin.keyboardActions || [])
-      .reduce((acc: KeyboardActions, cv) => acc.concat(cv), [])
+      .flat()
       .map((action: DefaultKeyboardAction | KeyboardAction) =>
-        typeof action === 'string'
-          ? defaultKeyboardActions.find((a) => a.action === action)
-          : action,
+        typeof action === 'string' ? buildInMenuEntries[action] : action,
       )
       .filter(notNull),
   );
@@ -97,7 +76,7 @@ export function setupMenuBar(
   // add keyboard actions to
   registeredActions.forEach((keyboardAction) => {
     if (keyboardAction != null) {
-      appendMenuItem(template, actionHandler, keyboardAction);
+      appendMenuItem(template, keyboardAction);
     }
   });
 
@@ -126,7 +105,6 @@ export function setupMenuBar(
 
 function appendMenuItem(
   template: Array<MenuItemConstructorOptions>,
-  actionHandler: (action: string) => void,
   item: KeyboardAction,
 ) {
   const keyboardAction = item;
@@ -183,6 +161,49 @@ export function activateMenuItems(
   );
 }
 
+export function addSandyPluginEntries(entries: NormalizedMenuEntry[]) {
+  if (!electron.remote.Menu) {
+    return;
+  }
+
+  // disable all keyboard actions
+  for (const item of menuItems) {
+    item[1].enabled = false;
+  }
+
+  pluginActionHandler = (action: string) => {
+    entries.find((e) => e.action === action)?.handler();
+  };
+
+  let changedItems = false;
+  const currentMenu = electron.remote.Menu.getApplicationMenu();
+  for (const entry of entries) {
+    const item = menuItems.get(entry.action!);
+    if (item) {
+      item.enabled = true;
+      item.accelerator = entry.accelerator;
+    } else {
+      const parent = currentMenu?.items.find(
+        (i) => i.label === entry.topLevelMenu,
+      );
+      if (parent) {
+        const item = new electron.remote.MenuItem({
+          enabled: true,
+          click: () => pluginActionHandler?.(entry.action!),
+          label: entry.label,
+          accelerator: entry.accelerator,
+        });
+        parent.submenu!.append(item);
+        menuItems.set(entry.action!, item);
+        changedItems = true;
+      }
+    }
+  }
+  if (changedItems) {
+    electron.remote.Menu.setApplicationMenu(currentMenu);
+  }
+}
+
 function getTemplate(
   app: electron.App,
   shell: electron.Shell,
diff --git a/desktop/app/src/devices/AndroidDevice.tsx b/desktop/app/src/devices/AndroidDevice.tsx
index b069fdc0f..6d1063307 100644
--- a/desktop/app/src/devices/AndroidDevice.tsx
+++ b/desktop/app/src/devices/AndroidDevice.tsx
@@ -12,7 +12,7 @@ import adb, {Client as ADBClient} from 'adbkit';
 import {Priority} from 'adbkit-logcat';
 import ArchivedDevice from './ArchivedDevice';
 import {createWriteStream} from 'fs';
-import {LogLevel, DeviceType} from 'flipper-plugin';
+import type {LogLevel, DeviceType} from 'flipper-plugin';
 
 const DEVICE_RECORDING_DIR = '/sdcard/flipper_recorder';
 
diff --git a/desktop/app/src/devices/ArchivedDevice.tsx b/desktop/app/src/devices/ArchivedDevice.tsx
index d8eb8495b..32ffdbc20 100644
--- a/desktop/app/src/devices/ArchivedDevice.tsx
+++ b/desktop/app/src/devices/ArchivedDevice.tsx
@@ -7,8 +7,8 @@
  * @format
  */
 
-import {DeviceLogEntry, DeviceType} from 'flipper-plugin';
 import BaseDevice from './BaseDevice';
+import type {DeviceLogEntry, DeviceType} from 'flipper-plugin';
 import {OS, DeviceShell} from './BaseDevice';
 import {SupportFormRequestDetailsState} from '../reducers/supportForm';
 
diff --git a/desktop/app/src/devices/BaseDevice.tsx b/desktop/app/src/devices/BaseDevice.tsx
index dd7829907..73e4703c1 100644
--- a/desktop/app/src/devices/BaseDevice.tsx
+++ b/desktop/app/src/devices/BaseDevice.tsx
@@ -8,7 +8,7 @@
  */
 
 import stream from 'stream';
-import {DeviceLogListener} from 'flipper';
+import type {DeviceLogListener} from 'flipper';
 import {sortPluginsByName} from '../utils/pluginUtils';
 import {
   DeviceLogEntry,
@@ -16,7 +16,8 @@ import {
   SandyPluginDefinition,
   DeviceType,
 } from 'flipper-plugin';
-import {DevicePluginMap, FlipperDevicePlugin} from '../plugin';
+import type {DevicePluginMap, FlipperDevicePlugin} from '../plugin';
+import {getFlipperLibImplementation} from '../utils/flipperLibImplementation';
 
 export type DeviceShell = {
   stdout: stream.Readable;
@@ -180,7 +181,11 @@ export default class BaseDevice {
         this.devicePlugins.push(plugin.id);
         this.sandyPluginStates.set(
           plugin.id,
-          new SandyDevicePluginInstance(this, plugin),
+          new SandyDevicePluginInstance(
+            getFlipperLibImplementation(),
+            plugin,
+            this,
+          ),
         ); // TODO T70582933: pass initial state if applicable
       }
     } else {
diff --git a/desktop/app/src/devices/FlipperSelfInspectionDevice.tsx b/desktop/app/src/devices/FlipperSelfInspectionDevice.tsx
index 61761c665..a1b7a7408 100644
--- a/desktop/app/src/devices/FlipperSelfInspectionDevice.tsx
+++ b/desktop/app/src/devices/FlipperSelfInspectionDevice.tsx
@@ -8,7 +8,7 @@
  */
 
 import BaseDevice, {OS} from './BaseDevice';
-import {DeviceType} from 'flipper-plugin';
+import type {DeviceType} from 'flipper-plugin';
 
 export default class FlipperSelfInspectionDevice extends BaseDevice {
   constructor(serial: string, deviceType: DeviceType, title: string, os: OS) {
diff --git a/desktop/app/src/devices/IOSDevice.tsx b/desktop/app/src/devices/IOSDevice.tsx
index 103a2c52f..630b3fd19 100644
--- a/desktop/app/src/devices/IOSDevice.tsx
+++ b/desktop/app/src/devices/IOSDevice.tsx
@@ -7,7 +7,7 @@
  * @format
  */
 
-import {LogLevel, DeviceLogEntry, DeviceType} from 'flipper-plugin';
+import type {LogLevel, DeviceLogEntry, DeviceType} from 'flipper-plugin';
 import child_process, {ChildProcess} from 'child_process';
 import BaseDevice from './BaseDevice';
 import JSONStream from 'JSONStream';
diff --git a/desktop/app/src/dispatcher/iOSDevice.tsx b/desktop/app/src/dispatcher/iOSDevice.tsx
index f2b173a1d..3ba3cf625 100644
--- a/desktop/app/src/dispatcher/iOSDevice.tsx
+++ b/desktop/app/src/dispatcher/iOSDevice.tsx
@@ -11,7 +11,7 @@ import {ChildProcess} from 'child_process';
 import {Store} from '../reducers/index';
 import {setXcodeDetected} from '../reducers/application';
 import {Logger} from '../fb-interfaces/Logger';
-import {DeviceType} from 'flipper-plugin';
+import type {DeviceType} from 'flipper-plugin';
 import {promisify} from 'util';
 import path from 'path';
 import child_process from 'child_process';
diff --git a/desktop/app/src/init.tsx b/desktop/app/src/init.tsx
index e26ad76d9..711bb23cc 100644
--- a/desktop/app/src/init.tsx
+++ b/desktop/app/src/init.tsx
@@ -10,6 +10,7 @@
 import {Provider} from 'react-redux';
 import ReactDOM from 'react-dom';
 import {useState, useEffect} from 'react';
+
 import ContextMenuProvider from './ui/components/ContextMenuProvider';
 import GK from './fb-stubs/GK';
 import {init as initLogger} from './fb-stubs/Logger';
@@ -36,6 +37,7 @@ import {enableMapSet} from 'immer';
 import os from 'os';
 import QuickPerformanceLogger, {FLIPPER_QPL_EVENTS} from './fb-stubs/QPL';
 import {PopoverProvider} from './ui/components/PopoverProvider';
+import {initializeFlipperLibImplementation} from './utils/flipperLibImplementation';
 
 if (process.env.NODE_ENV === 'development' && os.platform() === 'darwin') {
   // By default Node.JS has its internal certificate storage and doesn't use
@@ -111,6 +113,7 @@ function setProcessState(store: Store) {
 }
 
 function init() {
+  initializeFlipperLibImplementation(store, logger);
   ReactDOM.render(<AppFrame />, document.getElementById('root'));
   initLauncherHooks(config(), store);
   const sessionId = store.getState().application.sessionId;
diff --git a/desktop/app/src/reducers/connections.tsx b/desktop/app/src/reducers/connections.tsx
index f61a2a914..d68a420e5 100644
--- a/desktop/app/src/reducers/connections.tsx
+++ b/desktop/app/src/reducers/connections.tsx
@@ -25,7 +25,7 @@ import SupportRequestFormV2 from '../fb-stubs/SupportRequestFormV2';
 import SupportRequestDetails from '../fb-stubs/SupportRequestDetails';
 import {getPluginKey, isDevicePluginDefinition} from '../utils/pluginUtils';
 import {deconstructClientId} from '../utils/clientUtils';
-import {FlipperDevicePlugin, PluginDefinition, isSandyPlugin} from '../plugin';
+import {PluginDefinition} from '../plugin';
 import {RegisterPluginAction} from './plugins';
 
 export type StaticView =
diff --git a/desktop/app/src/test-utils/createMockFlipperWithPlugin.tsx b/desktop/app/src/test-utils/createMockFlipperWithPlugin.tsx
index a2b33492d..04d796818 100644
--- a/desktop/app/src/test-utils/createMockFlipperWithPlugin.tsx
+++ b/desktop/app/src/test-utils/createMockFlipperWithPlugin.tsx
@@ -16,6 +16,7 @@ import {
   act as testingLibAct,
 } from '@testing-library/react';
 import {queries} from '@testing-library/dom';
+import {TestUtils} from 'flipper-plugin';
 
 import {
   selectPlugin,
@@ -36,6 +37,7 @@ import {registerPlugins} from '../reducers/plugins';
 import PluginContainer from '../PluginContainer';
 import {getPluginKey, isDevicePluginDefinition} from '../utils/pluginUtils';
 import {getInstance} from '../fb-stubs/Logger';
+import {setFlipperLibImplementation} from '../utils/flipperLibImplementation';
 
 type MockFlipperResult = {
   client: Client;
@@ -62,6 +64,8 @@ export async function createMockFlipperWithPlugin(
 ): Promise<MockFlipperResult> {
   const store = createStore(rootReducer);
   const logger = getInstance();
+  setFlipperLibImplementation(TestUtils.createMockFlipperLib());
+
   store.dispatch(registerPlugins([pluginClazz]));
 
   function createDevice(serial: string): BaseDevice {
diff --git a/desktop/app/src/utils/flipperLibImplementation.tsx b/desktop/app/src/utils/flipperLibImplementation.tsx
new file mode 100644
index 000000000..01a9cd657
--- /dev/null
+++ b/desktop/app/src/utils/flipperLibImplementation.tsx
@@ -0,0 +1,38 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import type {FlipperLib} from 'flipper-plugin';
+import type {Logger} from '../fb-interfaces/Logger';
+import type {Store} from '../reducers';
+
+let flipperLibInstance: FlipperLib | undefined;
+
+export function initializeFlipperLibImplementation(
+  _store: Store,
+  _logger: Logger,
+) {
+  // late require to avoid cyclic dependency
+  const {addSandyPluginEntries} = require('../MenuBar');
+  flipperLibInstance = {
+    enableMenuEntries(entries) {
+      addSandyPluginEntries(entries);
+    },
+  };
+}
+
+export function getFlipperLibImplementation(): FlipperLib {
+  if (!flipperLibInstance) {
+    throw new Error('Flipper lib not instantiated');
+  }
+  return flipperLibInstance;
+}
+
+export function setFlipperLibImplementation(impl: FlipperLib) {
+  flipperLibInstance = impl;
+}
diff --git a/desktop/flipper-plugin/src/__tests__/test-utils.node.tsx b/desktop/flipper-plugin/src/__tests__/test-utils.node.tsx
index 0aaa3e323..8f9145808 100644
--- a/desktop/flipper-plugin/src/__tests__/test-utils.node.tsx
+++ b/desktop/flipper-plugin/src/__tests__/test-utils.node.tsx
@@ -286,3 +286,45 @@ test('device plugins can receive deeplinks', async () => {
   plugin.triggerDeepLink('test');
   expect(plugin.instance.field1.get()).toBe('test');
 });
+
+test('plugins can register menu entries', async () => {
+  const plugin = TestUtils.startPlugin({
+    plugin(client: PluginClient) {
+      const counter = createState(0);
+      client.addMenuEntry(
+        {
+          action: 'createPaste',
+          handler() {
+            counter.set(counter.get() + 1);
+          },
+        },
+        {
+          label: 'Custom Action',
+          topLevelMenu: 'Edit',
+          handler() {
+            counter.set(counter.get() + 3);
+          },
+        },
+      );
+      return {counter};
+    },
+    Component() {
+      return null;
+    },
+  });
+
+  expect(plugin.instance.counter.get()).toBe(0);
+  plugin.triggerDeepLink('test');
+  plugin.triggerMenuEntry('createPaste');
+  plugin.triggerMenuEntry('Custom Action');
+  expect(plugin.instance.counter.get()).toBe(4);
+  expect(plugin.flipperLib.enableMenuEntries).toBeCalledTimes(1);
+
+  plugin.deactivate();
+
+  expect(() => {
+    plugin.triggerMenuEntry('Non Existing');
+  }).toThrowErrorMatchingInlineSnapshot(
+    `"No menu entry found with action: Non Existing"`,
+  );
+});
diff --git a/desktop/flipper-plugin/src/index.ts b/desktop/flipper-plugin/src/index.ts
index bd85c070c..641ae5854 100644
--- a/desktop/flipper-plugin/src/index.ts
+++ b/desktop/flipper-plugin/src/index.ts
@@ -7,6 +7,7 @@
  * @format
  */
 
+import './plugin/PluginBase';
 import * as TestUtilites from './test-utils/test-utils';
 
 export {
@@ -26,6 +27,12 @@ export {SandyPluginDefinition} from './plugin/SandyPluginDefinition';
 export {SandyPluginRenderer} from './plugin/PluginRenderer';
 export {SandyPluginContext, usePlugin} from './plugin/PluginContext';
 export {createState, useValue, Atom} from './state/atom';
+export {FlipperLib} from './plugin/FlipperLib';
+export {
+  MenuEntry,
+  NormalizedMenuEntry,
+  buildInMenuEntries,
+} from './plugin/MenuEntry';
 
 // It's not ideal that this exists in flipper-plugin sources directly,
 // but is the least pain for plugin authors.
diff --git a/desktop/flipper-plugin/src/plugin/DevicePlugin.tsx b/desktop/flipper-plugin/src/plugin/DevicePlugin.tsx
index 0f9ed440e..911a1ca73 100644
--- a/desktop/flipper-plugin/src/plugin/DevicePlugin.tsx
+++ b/desktop/flipper-plugin/src/plugin/DevicePlugin.tsx
@@ -9,6 +9,7 @@
 
 import {SandyPluginDefinition} from './SandyPluginDefinition';
 import {BasePluginInstance, BasePluginClient} from './PluginBase';
+import {FlipperLib} from './FlipperLib';
 
 export type DeviceLogListener = (entry: DeviceLogEntry) => void;
 
@@ -69,11 +70,12 @@ export class SandyDevicePluginInstance extends BasePluginInstance {
   client: DevicePluginClient;
 
   constructor(
-    realDevice: RealFlipperDevice,
+    flipperLib: FlipperLib,
     definition: SandyPluginDefinition,
+    realDevice: RealFlipperDevice,
     initialStates?: Record<string, any>,
   ) {
-    super(definition, initialStates);
+    super(flipperLib, definition, initialStates);
     const device: Device = {
       // N.B. we model OS as string, not as enum, to make custom device types possible in the future
       os: realDevice.os,
diff --git a/desktop/flipper-plugin/src/plugin/FlipperLib.tsx b/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
new file mode 100644
index 000000000..7c4c3e6e5
--- /dev/null
+++ b/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
@@ -0,0 +1,17 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import {NormalizedMenuEntry} from './MenuEntry';
+
+/**
+ * This interface exposes all global methods for which an implementation will be provided by Flipper itself
+ */
+export interface FlipperLib {
+  enableMenuEntries(menuEntries: NormalizedMenuEntry[]): void;
+}
diff --git a/desktop/flipper-plugin/src/plugin/MenuEntry.tsx b/desktop/flipper-plugin/src/plugin/MenuEntry.tsx
new file mode 100644
index 000000000..85b22e915
--- /dev/null
+++ b/desktop/flipper-plugin/src/plugin/MenuEntry.tsx
@@ -0,0 +1,66 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+export type DefaultKeyboardAction = 'clear' | 'goToBottom' | 'createPaste';
+export type TopLevelMenu = 'Edit' | 'View' | 'Window' | 'Help';
+
+export type MenuEntry = BuiltInMenuEntry | CustomMenuEntry;
+
+export type NormalizedMenuEntry = {
+  label: string;
+  accelerator?: string;
+  topLevelMenu: TopLevelMenu;
+  handler: () => void;
+  action: string;
+};
+
+export type CustomMenuEntry = {
+  label: string;
+  accelerator?: string;
+  topLevelMenu: TopLevelMenu;
+  handler: () => void;
+};
+
+export type BuiltInMenuEntry = {
+  action: keyof typeof buildInMenuEntries;
+  handler: () => void;
+};
+
+export const buildInMenuEntries = {
+  clear: {
+    label: 'Clear',
+    accelerator: 'CmdOrCtrl+K',
+    topLevelMenu: 'View',
+    action: 'clear',
+  },
+  goToBottom: {
+    label: 'Go To Bottom',
+    accelerator: 'CmdOrCtrl+B',
+    topLevelMenu: 'View',
+    action: 'goToBottom',
+  },
+  createPaste: {
+    label: 'Create Paste',
+    topLevelMenu: 'Edit',
+    action: 'createPaste',
+  },
+} as const;
+
+export function normalizeMenuEntry(entry: MenuEntry): NormalizedMenuEntry;
+export function normalizeMenuEntry(entry: any): NormalizedMenuEntry {
+  const builtInEntry:
+    | NormalizedMenuEntry
+    | undefined = (buildInMenuEntries as any)[entry.action];
+  return builtInEntry
+    ? {...builtInEntry, ...entry}
+    : {
+        ...entry,
+        action: entry.action || entry.label,
+      };
+}
diff --git a/desktop/flipper-plugin/src/plugin/Plugin.tsx b/desktop/flipper-plugin/src/plugin/Plugin.tsx
index 70194db43..99fad1260 100644
--- a/desktop/flipper-plugin/src/plugin/Plugin.tsx
+++ b/desktop/flipper-plugin/src/plugin/Plugin.tsx
@@ -9,6 +9,7 @@
 
 import {SandyPluginDefinition} from './SandyPluginDefinition';
 import {BasePluginInstance, BasePluginClient} from './PluginBase';
+import {FlipperLib} from './FlipperLib';
 
 type EventsContract = Record<string, any>;
 type MethodsContract = Record<string, (params: any) => Promise<any>>;
@@ -96,11 +97,12 @@ export class SandyPluginInstance extends BasePluginInstance {
   connected = false;
 
   constructor(
-    realClient: RealFlipperClient,
+    flipperLib: FlipperLib,
     definition: SandyPluginDefinition,
+    realClient: RealFlipperClient,
     initialStates?: Record<string, any>,
   ) {
-    super(definition, initialStates);
+    super(flipperLib, definition, initialStates);
     this.realClient = realClient;
     this.definition = definition;
     this.client = {
diff --git a/desktop/flipper-plugin/src/plugin/PluginBase.tsx b/desktop/flipper-plugin/src/plugin/PluginBase.tsx
index f5c0a46ef..40865489b 100644
--- a/desktop/flipper-plugin/src/plugin/PluginBase.tsx
+++ b/desktop/flipper-plugin/src/plugin/PluginBase.tsx
@@ -10,6 +10,8 @@
 import {SandyPluginDefinition} from './SandyPluginDefinition';
 import {EventEmitter} from 'events';
 import {Atom} from '../state/atom';
+import {MenuEntry, NormalizedMenuEntry, normalizeMenuEntry} from './MenuEntry';
+import {FlipperLib} from './FlipperLib';
 
 export interface BasePluginClient {
   /**
@@ -31,6 +33,11 @@ export interface BasePluginClient {
    * Triggered when this plugin is opened through a deeplink
    */
   onDeepLink(cb: (deepLink: unknown) => void): void;
+
+  /**
+   * Register menu entries in the Flipper toolbar
+   */
+  addMenuEntry(...entry: MenuEntry[]): void;
 }
 
 let currentPluginInstance: BasePluginInstance | undefined = undefined;
@@ -46,6 +53,8 @@ export function getCurrentPluginInstance(): typeof currentPluginInstance {
 }
 
 export abstract class BasePluginInstance {
+  /** generally available Flipper APIs */
+  flipperLib: FlipperLib;
   /** the original plugin definition */
   definition: SandyPluginDefinition;
   /** the plugin instance api as used inside components and such  */
@@ -62,10 +71,14 @@ export abstract class BasePluginInstance {
   // last seen deeplink
   lastDeeplink?: any;
 
+  menuEntries: NormalizedMenuEntry[] = [];
+
   constructor(
+    flipperLib: FlipperLib,
     definition: SandyPluginDefinition,
     initialStates?: Record<string, any>,
   ) {
+    this.flipperLib = flipperLib;
     this.definition = definition;
     this.initialStates = initialStates;
   }
@@ -95,6 +108,21 @@ export abstract class BasePluginInstance {
       onDestroy: (cb) => {
         this.events.on('destroy', cb);
       },
+      addMenuEntry: (...entries) => {
+        for (const entry of entries) {
+          const normalized = normalizeMenuEntry(entry);
+          if (
+            this.menuEntries.find(
+              (existing) =>
+                existing.label === normalized.label ||
+                existing.action === normalized.action,
+            )
+          ) {
+            throw new Error(`Duplicate menu entry: '${normalized.label}'`);
+          }
+          this.menuEntries.push(normalizeMenuEntry(entry));
+        }
+      },
     };
   }
 
@@ -103,6 +131,7 @@ export abstract class BasePluginInstance {
     this.assertNotDestroyed();
     if (!this.activated) {
       this.activated = true;
+      this.flipperLib.enableMenuEntries(this.menuEntries);
       this.events.emit('activate');
     }
   }
@@ -112,8 +141,8 @@ export abstract class BasePluginInstance {
       return;
     }
     if (this.activated) {
-      this.lastDeeplink = undefined;
       this.activated = false;
+      this.lastDeeplink = undefined;
       this.events.emit('deactivate');
     }
   }
diff --git a/desktop/flipper-plugin/src/test-utils/test-utils.tsx b/desktop/flipper-plugin/src/test-utils/test-utils.tsx
index 7c975f650..e789789cf 100644
--- a/desktop/flipper-plugin/src/test-utils/test-utils.tsx
+++ b/desktop/flipper-plugin/src/test-utils/test-utils.tsx
@@ -35,6 +35,7 @@ import {
   DeviceLogListener,
 } from '../plugin/DevicePlugin';
 import {BasePluginInstance} from '../plugin/PluginBase';
+import {FlipperLib} from '../plugin/FlipperLib';
 
 type Renderer = RenderResult<typeof queries>;
 
@@ -61,6 +62,11 @@ type ExtractEventsType<
   : never;
 
 interface BasePluginResult {
+  /**
+   * Mock for Flipper utilities
+   */
+  flipperLib: FlipperLib;
+
   /**
    * Emulates the 'onActivate' event
    */
@@ -84,6 +90,11 @@ interface BasePluginResult {
    * Grab all the persistable state
    */
   exportState(): any;
+
+  /**
+   * Trigger menu entry by label
+   */
+  triggerMenuEntry(label: string): void;
 }
 
 interface StartPluginResult<Module extends FlipperPluginModule<any>>
@@ -165,8 +176,9 @@ export function startPlugin<Module extends FlipperPluginModule<any>>(
   }
 
   const sendStub = jest.fn();
-  const fakeFlipper: RealFlipperClient = {
-    isBackgroundPlugin() {
+  const flipperUtils = createMockFlipperLib();
+  const fakeFlipperClient: RealFlipperClient = {
+    isBackgroundPlugin(_pluginId: string) {
       return !!options?.isBackgroundPlugin;
     },
     initPlugin() {
@@ -186,8 +198,9 @@ export function startPlugin<Module extends FlipperPluginModule<any>>(
   };
 
   const pluginInstance = new SandyPluginInstance(
-    fakeFlipper,
+    flipperUtils,
     definition,
+    fakeFlipperClient,
     options?.initialState,
   );
 
@@ -258,10 +271,12 @@ export function startDevicePlugin<Module extends FlipperDevicePluginModule>(
     );
   }
 
+  const flipperLib = createMockFlipperLib();
   const testDevice = createMockDevice(options);
   const pluginInstance = new SandyDevicePluginInstance(
-    testDevice,
+    flipperLib,
     definition,
+    testDevice,
     options?.initialState,
   );
 
@@ -306,10 +321,17 @@ export function renderDevicePlugin<Module extends FlipperDevicePluginModule>(
   };
 }
 
+export function createMockFlipperLib(): FlipperLib {
+  return {
+    enableMenuEntries: jest.fn(),
+  };
+}
+
 function createBasePluginResult(
   pluginInstance: BasePluginInstance,
 ): BasePluginResult {
   return {
+    flipperLib: pluginInstance.flipperLib,
     activate: () => pluginInstance.activate(),
     deactivate: () => pluginInstance.deactivate(),
     exportState: () => pluginInstance.exportState(),
@@ -317,6 +339,13 @@ function createBasePluginResult(
       pluginInstance.triggerDeepLink(deepLink);
     },
     destroy: () => pluginInstance.destroy(),
+    triggerMenuEntry: (action: string) => {
+      const entry = pluginInstance.menuEntries.find((e) => e.action === action);
+      if (!entry) {
+        throw new Error('No menu entry found with action: ' + action);
+      }
+      entry.handler();
+    },
   };
 }
 
diff --git a/desktop/plugins/seamammals/src/index.tsx b/desktop/plugins/seamammals/src/index.tsx
index ee92d2938..393298fec 100644
--- a/desktop/plugins/seamammals/src/index.tsx
+++ b/desktop/plugins/seamammals/src/index.tsx
@@ -49,6 +49,22 @@ export function plugin(client: FlipperClient<Events, {}>) {
   const rows = createState<PersistedState>({}, {persist: 'rows'});
   const selectedID = createState<string | null>(null, {persist: 'selection'});
 
+  client.addMenuEntry(
+    {
+      label: 'Reset Selection',
+      topLevelMenu: 'Edit',
+      handler: () => {
+        selectedID.set(null);
+      },
+    },
+    {
+      action: 'createPaste',
+      handler: () => {
+        console.log('creating paste');
+      },
+    },
+  );
+
   client.onMessage('newRow', (row) => {
     rows.update((draft) => {
       draft[row.id] = row;