Authentication in Spaces#
Enable built-in identity sign-in by setting mega_oauth: true in the Space
card. The Space receives a public OAuth client configuration automatically; no
client secret belongs in the repository, browser, or Space variables.
---sdk: dockermega_oauth: true---For a FastAPI application, install the optional dependency and attach the helper once:
from fastapi import FastAPI, Requestfrom megatensors._hub import attach_mega_oauth, parse_mega_oauth app = FastAPI()attach_mega_oauth(app) @app.get("/me")def me(request: Request): identity = parse_mega_oauth(request) return {"signed_in": identity is not None}Use /oauth/mega/login for the sign-in action and /oauth/mega/logout to
clear the application session. The built-in flow requests identity scopes only;
use a separately registered OAuth application when the Space needs access to
other account resources. For iframe use, the helper automatically falls back
to a top-level sign-in when the browser blocks third-party cookies.