Recaptcha sitekey via http

[z0rz0r]

Is there anyway to find a recaptcha sitekey through http requests? I am interacting with the twitch api via https://passport.twitch.tv/login and on occasion get served with a google captcha that am i unsure how to solve as i cannot find the site key. Any help is appreciated, thanks.

[z0rz0r]

Update. I have found the correct sitekey and am now able to solve the captcha accordingly. However when I send a http request to login with the json payload containing the user, pass and compelted captcha token I receive json back saying that the Captcha is incorrect. I am using the following json payload via POST:
{
"username": [[user]],
"password": [[pass]],
"client_id": [clientid],
"g-recaptcha-response": [[solvedtoken]]
}

[z0rz0r]

Bump. Help me stop starring into the abyss till I get this fixed.

[z0rz0r]

BUMPPPPPPPPP