diff --git a/packages/grafana-data/src/types/pluginExtensions.ts b/packages/grafana-data/src/types/pluginExtensions.ts
index 05e7b2b144e..40d20b88c38 100644
--- a/packages/grafana-data/src/types/pluginExtensions.ts
+++ b/packages/grafana-data/src/types/pluginExtensions.ts
@@ -218,6 +218,8 @@ export enum PluginExtensionPoints {
   LogsViewResourceAttributes = 'grafana/logsview/resource-attributes',
   AppChrome = 'grafana/app/chrome/v1',
   ExtensionSidebar = 'grafana/extension-sidebar/v0-alpha',
+  MegaMenuAction = 'grafana/megamenu/action',
+  SingleTopBarAction = 'grafana/singletopbar/action',
 }
 
 // Don't use directly in a plugin!
diff --git a/public/app/core/components/AppChrome/MegaMenu/MegaMenu.tsx b/public/app/core/components/AppChrome/MegaMenu/MegaMenu.tsx
index 16d100b3bb4..dead4bd810e 100644
--- a/public/app/core/components/AppChrome/MegaMenu/MegaMenu.tsx
+++ b/public/app/core/components/AppChrome/MegaMenu/MegaMenu.tsx
@@ -13,6 +13,7 @@ import { useGrafana } from 'app/core/context/GrafanaContext';
 import { setBookmark } from 'app/core/reducers/navBarTree';
 import { useDispatch, useSelector } from 'app/types/store';
 
+import { MegaMenuExtensionPoint } from './MegaMenuExtensionPoint';
 import { MegaMenuHeader } from './MegaMenuHeader';
 import { MegaMenuItem } from './MegaMenuItem';
 import { usePinnedItems } from './hooks';
@@ -110,18 +111,21 @@ export const MegaMenu = memo(
         <MegaMenuHeader handleDockedMenu={handleDockedMenu} handleMegaMenu={handleMegaMenu} onClose={onClose} />
         <nav className={styles.content}>
           <ScrollContainer height="100%" overflowX="hidden" showScrollIndicators>
-            <ul className={styles.itemList} aria-label={t('navigation.megamenu.list-label', 'Navigation')}>
-              {navItems.map((link, index) => (
-                <MegaMenuItem
-                  key={link.text}
-                  link={link}
-                  isPinned={isPinned}
-                  onClick={state.megaMenuDocked ? undefined : onClose}
-                  activeItem={activeItem}
-                  onPin={onPinItem}
-                />
-              ))}
-            </ul>
+            <>
+              <ul className={styles.itemList} aria-label={t('navigation.megamenu.list-label', 'Navigation')}>
+                {navItems.map((link, index) => (
+                  <MegaMenuItem
+                    key={link.text}
+                    link={link}
+                    isPinned={isPinned}
+                    onClick={state.megaMenuDocked ? undefined : onClose}
+                    activeItem={activeItem}
+                    onPin={onPinItem}
+                  />
+                ))}
+              </ul>
+              <MegaMenuExtensionPoint />
+            </>
           </ScrollContainer>
         </nav>
       </div>
diff --git a/public/app/core/components/AppChrome/MegaMenu/MegaMenuExtensionPoint.tsx b/public/app/core/components/AppChrome/MegaMenu/MegaMenuExtensionPoint.tsx
new file mode 100644
index 00000000000..96e667ac6ec
--- /dev/null
+++ b/public/app/core/components/AppChrome/MegaMenu/MegaMenuExtensionPoint.tsx
@@ -0,0 +1,25 @@
+import { PluginExtensionPoints } from '@grafana/data';
+import { renderLimitedComponents } from '@grafana/runtime';
+import { usePluginComponents } from 'app/features/plugins/extensions/usePluginComponents';
+
+/**
+ * Extension point for plugins to add components to the mega menu.
+ * Currently restricted to grafana-setupguide-app plugin.
+ */
+export function MegaMenuExtensionPoint() {
+  const { components } = usePluginComponents({
+    extensionPointId: PluginExtensionPoints.MegaMenuAction,
+  });
+
+  // Return null if no components are registered
+  if (components.length === 0) {
+    return null;
+  }
+
+  return renderLimitedComponents({
+    props: {},
+    components: components,
+    limit: 1,
+    pluginId: 'grafana-setupguide-app',
+  });
+}
diff --git a/public/app/core/components/AppChrome/TopBar/SingleTopBar.tsx b/public/app/core/components/AppChrome/TopBar/SingleTopBar.tsx
index d61dfdb46de..c68f5572b06 100644
--- a/public/app/core/components/AppChrome/TopBar/SingleTopBar.tsx
+++ b/public/app/core/components/AppChrome/TopBar/SingleTopBar.tsx
@@ -28,6 +28,7 @@ import { InviteUserButton } from './InviteUserButton';
 import { ProfileButton } from './ProfileButton';
 import { SignInLink } from './SignInLink';
 import { SingleTopBarActions } from './SingleTopBarActions';
+import { TopBarExtensionPoint } from './TopBarExtensionPoint';
 import { TopSearchBarCommandPaletteTrigger } from './TopSearchBarCommandPaletteTrigger';
 import { getChromeHeaderLevelHeight } from './useChromeHeaderHeight';
 
@@ -94,6 +95,7 @@ export const SingleTopBar = memo(function SingleTopBar({
           data-testid={!showToolbarLevel ? Components.NavToolbar.container : undefined}
           minWidth={{ xs: 'unset', lg: 0 }}
         >
+          <TopBarExtensionPoint />
           <TopSearchBarCommandPaletteTrigger />
           {unifiedHistoryEnabled && !isSmallScreen && <HistoryContainer />}
           {!isSmallScreen && <QuickAdd />}
diff --git a/public/app/core/components/AppChrome/TopBar/TopBarExtensionPoint.tsx b/public/app/core/components/AppChrome/TopBar/TopBarExtensionPoint.tsx
new file mode 100644
index 00000000000..42f81081e30
--- /dev/null
+++ b/public/app/core/components/AppChrome/TopBar/TopBarExtensionPoint.tsx
@@ -0,0 +1,25 @@
+import { PluginExtensionPoints } from '@grafana/data';
+import { renderLimitedComponents } from '@grafana/runtime';
+import { usePluginComponents } from 'app/features/plugins/extensions/usePluginComponents';
+
+/**
+ * Extension point for plugins to add components to the top bar.
+ * Currently restricted to grafana-setupguide-app plugin.
+ */
+export function TopBarExtensionPoint() {
+  const { components } = usePluginComponents({
+    extensionPointId: PluginExtensionPoints.SingleTopBarAction,
+  });
+
+  // Return null if no components are registered
+  if (components.length === 0) {
+    return null;
+  }
+
+  return renderLimitedComponents({
+    props: {},
+    components: components,
+    limit: 1,
+    pluginId: 'grafana-setupguide-app',
+  });
+}
diff --git a/public/app/features/plugins/extensions/usePluginComponents.test.tsx b/public/app/features/plugins/extensions/usePluginComponents.test.tsx
index d5740d50b5a..930e2dda359 100644
--- a/public/app/features/plugins/extensions/usePluginComponents.test.tsx
+++ b/public/app/features/plugins/extensions/usePluginComponents.test.tsx
@@ -23,6 +23,9 @@ import { useLoadAppPlugins } from './useLoadAppPlugins';
 import { usePluginComponents } from './usePluginComponents';
 import { isGrafanaDevMode } from './utils';
 
+// Unmock usePluginComponents to test the real implementation
+jest.unmock('./usePluginComponents');
+
 jest.mock('./useLoadAppPlugins');
 
 jest.mock('./utils', () => ({
diff --git a/public/test/setupTests.ts b/public/test/setupTests.ts
index d6c97a0d1c8..2c21f3a8a1e 100644
--- a/public/test/setupTests.ts
+++ b/public/test/setupTests.ts
@@ -34,6 +34,18 @@ i18next.use(initReactI18next).init({
 // the factory uses import.meta.url so we can't use it in CommonJS modules.
 jest.mock('app/features/dashboard-scene/saving/createDetectChangesWorker.ts');
 
+// Mock useLoadAppPlugins to prevent async state updates in tests
+jest.mock('app/features/plugins/extensions/useLoadAppPlugins', () => ({
+  useLoadAppPlugins: jest.fn().mockReturnValue({ isLoading: false }),
+}));
+
+// Mock usePluginComponents to return empty components for all tests by default
+// Tests that need to test plugin components can override this mock
+jest.mock('app/features/plugins/extensions/usePluginComponents', () => ({
+  ...jest.requireActual('app/features/plugins/extensions/usePluginComponents'),
+  usePluginComponents: jest.fn().mockReturnValue({ components: [], isLoading: false }),
+}));
+
 // our tests are heavy in CI due to parallelisation and monaco and kusto
 // so we increase the default timeout to 2secs to avoid flakiness
 configure({ asyncUtilTimeout: 2000 });