Google OAuth 2.0 / OIDC + Gmail, Calendar & Drive Emulator

OAuth 2.0 and OpenID Connect emulation with authorization code flow, PKCE support, ID tokens, OIDC discovery, refresh tokens, plus Gmail, Google Calendar, and Google Drive REST API surfaces.

Start

# Google only
npx emulate --service google

# Default port
# http://localhost:4002

Or programmatically:

import { createEmulator } from 'emulate'