# Authenticate for Plugin SDK for macOS The Plugin SDK talks to the installed Zoom client over IPC. Authenticate the plugin session with OAuth 2.0 access token. Get your OAuth 2.0 access token with the required scope **`plugin_sdk:read:connection_meta`**. Then initialize using `initSDK`. ```swift let eventListener = EventListener() let authContext = ZoomToolSuiteAuthContext() authContext.accessToken = accessTokenField.stringValue authContext.domain = "https://zoom.us" ZoomToolSuiteAPI.initSDK(authContext, listener: eventListener) ```