The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Twothumbs listing page.
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.
The server speaks Streamable HTTP at:
No local install, no package, no API key required to use the anonymous tools.
Or install this repository as a Claude Code plugin (adds the same server via .mcp.json):
Add to your MCP settings (Cursor Settings → MCP):
Works with any client that supports the Streamable HTTP transport — Claude Code, Cursor, Codex, and CI/headless clients included.
Available anonymously, with a free daily quota:
| Tool | What it does |
|---|---|
run_verdict | Exercises 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_surfaces | Lists the target surfaces currently configured for run_verdict. |
redeem_code | Exchanges an access code for an API key. |
An API key additionally unlocks get_last_verdict, get_balance, and set_auto_topup.
Billing is invoice-based; email through twothumbs.co to request a key, or
use redeem_code with an access code.
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.