Human verification CAPTCHA with visual and selective-listening audio challenges.
Connect Remote server
claude mcp add --transport http captchacc https://captcha.cc/mcp
{
"mcpServers": {
"captchacc": {
"url": "https://captcha.cc/mcp"
}
}
}
{
"servers": {
"captchacc": {
"type": "http",
"url": "https://captcha.cc/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://captcha.cc/mcp
Tools 3 found in our last check
make_widget_snippetReturn a minimal browser SDK snippet for mounting captcha.cc and submitting the proof token to an application endpoint.
make_siteverify_requestReturn a server-side fetch example for redeeming a captcha.cc proof token exactly once.
create_challengeCreate a live captcha.cc challenge for a site key and allowed hostname. Useful for smoke tests and integration checks.
Details
| Endpoint | https://captcha.cc/mcp (Streamable HTTP) |
| First published | 13 Apr 2026 |
| Last updated | 13 Apr 2026 |
| Registry name | cc.captcha/captchacc |
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