MCP Failure Lab MCP Server

by anilloutombam Your server? Claim it

local only

MCP Failure Lab runs on your own machine — the client starts it, so there is no endpoint to ping. 211 installs a week from npm. Last commit 17 Sep 2026.

A chaos-engineering and resilience-testing toolkit for Model Context Protocol servers.

Installs per day peak 313 · avg 39 · -12% w/w

a month agotoday

211

Installs / week

npm · mcp-failure-lab

Stars

6 open issues

17 Sep 2026

Last commit

0 releases in 90 days

MIT

License

TypeScript

Nothing serious here today

Today is the operative word: we check MCP Failure Lab 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 mcp-failure-lab -- npx -y mcp-failure-lab

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

{
  "mcpServers": {
    "mcp-failure-lab": {
      "args": [
        "-y",
        "mcp-failure-lab"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp-failure-lab]
command = "npx"
args = ["-y", "mcp-failure-lab"]

.cursor/mcp.json

{
  "mcpServers": {
    "mcp-failure-lab": {
      "args": [
        "-y",
        "mcp-failure-lab"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp-failure-lab": {
      "args": [
        "-y",
        "mcp-failure-lab"
      ],
      "command": "npx"
    }
  }
}

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MCP Failure Lab — questions

Answers built from our own checks of this server.

Why is there no uptime for MCP Failure Lab?

MCP Failure Lab 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 npm package mcp-failure-lab was installed 211 times last week.

How do I connect MCP Failure Lab?

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 mcp-failure-lab straight from npm; nothing to host, nothing to sign up for.

How many people use MCP Failure Lab?

The npm package mcp-failure-lab was installed 211 times in the last week. Week over week that is -12%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is MCP Failure Lab open source?

Yes — it is published under the MIT licence, written in TypeScript, 0 stars on GitHub and 6 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.