captcha.cc Human Verification MCP Server

by captcha Your server? Claim it

answering

captcha.cc Human Verification is answering right now. Last checked 14 min ago. It exposes 3 tools.

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

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 53 days of history · worst day 90%

53 days agonow

92.3%

Uptime 24h

84 of 91 checks

Tools

read from the server

292 ms

Response time

average over 24h

open, no key

Access

streamable-http

captcha.cc Human Verification does not always answer

Over the last week it answered 97.2% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add captchacc --transport http https://captcha.cc/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "captchacc": {
      "url": "https://captcha.cc/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.captchacc]
url = "https://captcha.cc/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "captchacc": {
      "url": "https://captcha.cc/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "captchacc": {
      "url": "https://captcha.cc/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

make

make_siteverify_request

Return a server-side fetch example for redeeming a captcha.cc proof token exactly once.

make_widget_snippet

Return a minimal browser SDK snippet for mounting captcha.cc and submitting the proof token to an application endpoint.

challenge

create_challenge

Create a live captcha.cc challenge for a site key and allowed hostname. Useful for smoke tests and integration checks.

Endpoints

URL	Transport	State	Latency	Checked
https://captcha.cc/mcp	streamable-http	answering	325 ms	14 min ago

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captcha.cc Human Verification — questions

Answers built from our own checks of this server.

What can captcha.cc Human Verification do?

It exposes 3 tools, read directly from the server on our last check. Among them: create_challenge, make_siteverify_request, make_widget_snippet. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is captcha.cc Human Verification working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 84 of 91 checks got a reply (92.3%), average response time 292 ms. The bar chart above shows every period we have measured.

Is captcha.cc Human Verification still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect captcha.cc Human Verification?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does captcha.cc Human Verification need an API key?

No. captcha.cc Human Verification completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is captcha.cc Human Verification?

It answers our handshake in 292 ms on average, which is faster than 57% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.