Rigor MCP Server

by mrnh Your server? Claim it

local only

Rigor MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 147 installs a week from pypi. Last commit 19 Aug 2026.

Verified statistical inference for AI agents: hypothesis tests, correlation, effect sizes, power.

Installs per day peak 485 · avg 79 · -85% w/w

a month agotoday

147

Installs / week

pypi · rigor-mcp

Stars

0 open issues

19 Aug 2026

Last commit

0 releases in 90 days

MIT

License

Python

Nothing serious here today

Today is the operative word: we check Rigor MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add rigor-mcp -- uvx rigor-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "rigor-mcp": {
      "args": [
        "rigor-mcp"
      ],
      "command": "uvx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.rigor-mcp]
command = "uvx"
args = ["rigor-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "rigor-mcp": {
      "args": [
        "rigor-mcp"
      ],
      "command": "uvx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "rigor-mcp": {
      "args": [
        "rigor-mcp"
      ],
      "command": "uvx"
    }
  }
}

Alternatives to Rigor MCP

same job, measured the same way

Agent Eval

by rudrendupaul

Statistical regression testing for LLM agents: p-value, effect size, and CI on behavior change.

187 installs/wk local only

Test Case Generator AI MCP

by csoai-org

AI-powered test case generator ai MCP server for agents. Supports generate test cases, generate

198 installs/wk local only

Databutler Stats

by physics-star-cat

Exact statistics & probability: distributions, hypothesis tests, CIs, Bayesian updates, regression.

6 tools answering

Testing

by rog0x

Test generation, mocks, coverage analysis for AI agents

51 installs/wk local only

Time

by clockchain

Clockchain®: neutral verified network time for AI agents (get_time). Testnet.

answering

Colter

by mfbahc

Colter audits product pages for AI shopping agents and returns fixes, tests, and Evidence Packs.

97 installs/wk local only

App Manager

by lance

App Store Connect operator for AI agents: icons, TestFlight builds, listings, IAP, rejection fixes.

answering

RuleDrift

by ri7in

Test whether AI agents retain critical instructions as conversations grow.

52 installs/wk local only

Rigor MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Rigor MCP?

Rigor MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package rigor-mcp was installed 147 times last week.

How do I connect Rigor MCP?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls rigor-mcp straight from pypi; nothing to host, nothing to sign up for.

How many people use Rigor MCP?

The pypi package rigor-mcp was installed 147 times in the last week. Week over week that is -85%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Rigor MCP open source?

Yes — it is published under the MIT licence, written in Python and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.