Solve reCAPTCHA v2/v3/Enterprise, Turnstile, DataDome and image captchas from AI agents.
To add CaptchaNo to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 5 environment variables, listed below.
Install
npx -y captchano-mcp@1.0.0Environment variables
CAPTCHANO_API_KEYSet in your MCP configCAPTCHANO_MAX_SPEND_USDSet in your MCP configCAPTCHANO_WAITSet in your MCP configCAPTCHANO_API_BASESet in your MCP configCAPTCHANO_TOOL_TIMEOUTSet in your MCP configInstall with your client
claude mcp add captchano --env CAPTCHANO_API_KEY=<YOUR_CAPTCHANO_API_KEY> --env CAPTCHANO_MAX_SPEND_USD=<YOUR_CAPTCHANO_MAX_SPEND_USD> --env CAPTCHANO_WAIT=<YOUR_CAPTCHANO_WAIT> --env CAPTCHANO_API_BASE=<YOUR_CAPTCHANO_API_BASE> --env CAPTCHANO_TOOL_TIMEOUT=<YOUR_CAPTCHANO_TOOL_TIMEOUT> -- npx -y captchano-mcp@1.0.0
Run this in a terminal to add the server to Claude Code.
What this does
CaptchaNo exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
CAPTCHANO_API_KEY CAPTCHANO_MAX_SPEND_USD CAPTCHANO_WAIT CAPTCHANO_API_BASE CAPTCHANO_TOOL_TIMEOUT
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install CaptchaNo?
Run the Claude Code command in the install section to add CaptchaNo to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with CaptchaNo?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to CaptchaNo as well.
Does CaptchaNo need an API key?
Yes. Before it can run, set these environment variables: CAPTCHANO_API_KEY, CAPTCHANO_MAX_SPEND_USD, CAPTCHANO_WAIT, CAPTCHANO_API_BASE, CAPTCHANO_TOOL_TIMEOUT. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
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