captcha.cc Human Verification

cc.captchaPublished by captcha.ccOfficial publisherv1.0.0Updated Oct 24, 2026

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

VerifiedStreamable HTTPWeb executableDeveloper ToolsSecurity & Monitoring

Overview

AI-generated overview

A remote MCP server for captcha.cc that helps an assistant generate CAPTCHA integration snippets and create live challenges for testing.

What you can do
Generate a minimal browser SDK snippet for mounting captcha.cc and submitting the proof token to an application endpoint. Produce a server-side fetch example for redeeming a proof token exactly once. Create a live captcha.cc challenge for a site key and allowed hostname, useful for smoke tests and integration checks.
When to use it
Useful when integrating captcha.cc human verification into an application and you want an assistant to draft the client and server code, or to create a live challenge to check that the setup works.
Requirements
A remote endpoint at captcha.cc over streamable HTTP; no packages, environment variables or headers are declared. Creating a challenge needs a site key and an allowed hostname.
Before you install
Creating a challenge produces a live captcha.cc challenge tied to a site key and hostname, so use test keys and hosts rather than production ones. The generated snippets handle proof tokens; treat those tokens as single-use secrets and do not expose them in logs or shared output.

Installation

In SourceWeft

  1. Open captcha.cc Human Verification in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/cc.captcha%2Fcaptchacc/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "captcha-cc-human-verification": {
      "type": "http",
      "url": "https://captcha.cc/mcp"
    }
  }
}

README

This repository has no README.

Tools

3

make_widget_snippet

Make Widget Snippet

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

Parametersform_idsite_keyrequiredelement_idsubmit_path

make_siteverify_request

Make Siteverify Request

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

Parameterssecret_env_varproof_token_expression

create_challenge

Create Challenge

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

Parametershostnamerequiredsite_keyrequired

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.

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