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io.github.asselwan/twothumbs

Official registry AI and agents

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

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http twothumbs 'https://twothumbs.co/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "twothumbs": {
            "type": "http",
            "url": "https://twothumbs.co/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. TwoThumbs MCP
  2. Connect
  3. Tools
  4. Pricing
  5. Links
  6. License

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.

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.

Frequently asked questions

What is io.github.asselwan/twothumbs?

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

How do I install io.github.asselwan/twothumbs?

It runs as a remote server. In Claude Code: claude mcp add --transport http twothumbs 'https://twothumbs.co/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.asselwan/twothumbs need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.asselwan/twothumbs open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains io.github.asselwan/twothumbs?

It is published by asselwan. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.