captcha.cc Human Verification for ChatGPT

cc.captcha/captchacc

Human verification CAPTCHA with visual and selective-listening audio challenges.

client:ChatGPT transport:streamable-http tools:3

Install captcha.cc Human Verification in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://captcha.cc/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs