At A2E, we offer free coins for every new developers. Feel free to register your new account at https://video.a2e.ai/. Your account will automatically gain access to the API.
Please read our API doc: https://api.a2e.ai to know how to obtain the API token by using your account id.
A new user automatically gets 100 coins for free, which should be enough for an initial API test. Please consider purchasing additional coins from $9.9 if you need more evaluation (and the ultimate application).
P.S. if you just want to quickly evaluate the visual results of AI avatars, you may want to skip code development and use our web UI @ https://video.a2e.ai The web UI is built upon the same API.