Client

Authlib provides OAuth 1.0 client implementations for two distinct use cases:

HTTP Clients — your Python code fetches tokens and calls APIs directly. Suitable for scripts, CLIs, service-to-service communication:

from authlib.integrations.requests_client import OAuth1Session

client = OAuth1Session(client_id, client_secret)
request_token = client.fetch_request_token(request_token_url)
# ... redirect user, then:
token = client.fetch_access_token(access_token_url)
resp = client.get('https://api.example.com/data')

Web Clients — your web application delegates authentication to an OAuth 1.0 provider. Works with any OAuth 1.0 provider (Twitter, or your own). Integrations for Flask, Django, Starlette and FastAPI:

from authlib.integrations.flask_client import OAuth

oauth = OAuth(app)
twitter = oauth.register('twitter', {...})

@app.route('/login')
def login():
    return twitter.authorize_redirect(url_for('authorize', _external=True))

• HTTP Clients
  • OAuth 1.0 for Requests
  • OAuth 1.0 for HTTPX
  • Reference
  • Initialize OAuth 1.0 Client
  • Fetch Temporary Credential
  • Redirect to Authorization Endpoint
  • Fetch Access Token
  • Access Protected Resources
  • Using OAuth1Auth
• Web Clients
  • Log In with OAuth 1.0
  • Accessing OAuth Resources