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Home/Servers/Twothumbs

Twothumbs

by io.github.asselwan

Verifies AI agent work end to end: real artifacts and outcomes checked, not self-reported success.

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Server URL
https://twothumbs.co/mcp
Provider
Add in Claude

Claude opens with the name and URL filled in. You still confirm it there.

Claude Code
claude mcp add --transport http io.github.asselwan-twothumbs https://twothumbs.co/mcp

Run in a terminal.

Claude Desktop
{
  "mcpServers": {
    "io.github.asselwan-twothumbs": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://twothumbs.co/mcp"
      ]
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

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Questions

How do I install Twothumbs?
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does Twothumbs need an API key?
No required environment variable is listed on this record.
What transport does Twothumbs use?
Twothumbs is reached over HTTP.
When was Twothumbs last checked?
Last checked 2026-10-21. Verifies AI agent work end to end: real artifacts and outcomes checked, not self-reported success.

Verifies AI agent work end to end: real artifacts and outcomes checked, not self-reported success.

TwoThumbs MCP

Verify what your AI agent actually did — not what it says it did.

TwoThumbs is a hosted, remote MCP server built by NOMOI Labs. It engineers an evidence-backed prompt, challenges weak premises, then checks the real artifact and downstream outcome a public web surface actually produced — instead of trusting a self-reported "success" message. It also carries a much larger internal prompt-engineering and verification-lifecycle tool set (51 tools total), of which the 3 tools below are exposed publicly over the hosted HTTP endpoint.

This repository is a thin discovery wrapper: an MCP client config, a Claude Code plugin manifest, and this README. There is no source code to install or build — the server itself is hosted and run by NOMOI at twothumbs.co.

Connect

The server speaks Streamable HTTP at:

https://twothumbs.co/mcp

No local install, no package, no API key required to use the anonymous tools.

Claude Code

claude mcp add --transport http twothumbs https://twothumbs.co/mcp

Or install this repository as a Claude Code plugin (adds the same server via .mcp.json):

/plugin marketplace add asselwan/twothumbs-mcp
/plugin install twothumbs@twothumbs-mcp

Cursor

Add to your MCP settings (Cursor Settings → MCP):

{
  "mcpServers": {
    "twothumbs": {
      "url": "https://twothumbs.co/mcp"
    }
  }
}

Generic MCP client

{
  "mcpServers": {
    "twothumbs": {
      "type": "http",
      "url": "https://twothumbs.co/mcp"
    }
  }
}

Works with any client that supports the Streamable HTTP transport — Claude Code, Cursor, Codex, and CI/headless clients included.

Tools

Available anonymously, with a free daily quota:

ToolWhat it does
run_verdictExercises every visible affordance on a public URL — clicking, submitting forms with clearly marked synthetic data — then returns a pass/fail verdict grounded in the real downstream outcome, not a self-reported success message.
list_surfacesLists the target surfaces currently configured for run_verdict.
redeem_codeExchanges an access code for an API key.

An API key additionally unlocks get_last_verdict, get_balance, and set_auto_topup.

Pricing

  • Free — 3 surface scans/day, no signup required.
  • $9 — 100 credits.
  • $29 — 500 credits.

Billing is invoice-based; email through twothumbs.co to request a key, or use redeem_code with an access code.

Links

  • Product: twothumbs.co
  • Docs / quickstart: twothumbs.co/docs.html
  • Privacy policy: twothumbs.co/privacy

License

The contents of this repository (plugin manifest, client config, documentation) are MIT licensed — see LICENSE. This license covers only this wrapper repository; it does not extend to the TwoThumbs product or hosted service, which remain the property of NOMOI.

How do I install Twothumbs?
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does Twothumbs need an API key?
No required environment variable is listed on this record.
What transport does Twothumbs use?
Twothumbs is reached over HTTP.
When was Twothumbs last checked?
Last checked 2026-10-21. Verifies AI agent work end to end: real artifacts and outcomes checked, not self-reported success.

No tool list yet. Remote servers get one after the first health check.

plugmcp

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