Hello All! I’m Jackie, Security Lead here at Patreon. Yesterday, we moved to challenge (serve Captcha) to requests that do not include a user agent. This is because historically, there have been a large number of badware or malware that omits user agents. Adding a proper user agent will circumvent this. We also serve captcha to suspected bad automated traffic. If you believe your legitimate app is being served captcha, we can work with you - feel free to privately message me here, and I’ll get back to you as soon as I can.