$ pip install flask-xsrf 

from flask import Flask, Response, session app = Flask(__name__) app.debug = True app.secret_key = 'session_secret_key' app.config['session_cookie_secure'] = True app.config['remember_cookie_name'] = 'testdomain.com' app.config['remember_cookie_duration_in_days'] = 1 @app.before_request def before_request(): if 'user_id' not in session: session['user_id'] = 'random_generated_anonymous_id' def get_user_id(): return session.get('user_id') xsrfh = xsrf.XSRFTokenHandler( user_func=get_user_id, secret='xsrf_secret', timeout=3600) @app.route('/test', methods=['GET']) @xsrfh.send_token() def test_get(): return Response('success') @app.route('/test', methods=['POST']) @xsrfh.handle_token() def test_post(): return Response('success')