MCP Compliance MCP Server

by yawlabs Your server? Claim it

local only

MCP Compliance runs on your own machine — the client starts it, so there is no endpoint to ping. 644 installs a week from npm. Last commit 31 Oct 2026.

CLI tool and MCP server that tests MCP servers for spec compliance

Installs per day peak 252 · avg 72 · +164% w/w

a month agotoday

644

Installs / week

npm · @yawlabs/mcp-compliance

Stars

0 open issues

31 Oct 2026

Last commit

16 releases in 90 days

MIT

License

TypeScript

What the code does

We read the source, 1 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs an external command src/transport/stdio.ts:123, bin/mcp-compliance.mjs:219, [пакет] bin/mcp-compliance.mjs:219

  const child: ChildProcess = spawn(command, args, {

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

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-compliance -- npx -y @yawlabs/mcp-compliance

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

{
  "mcpServers": {
    "mcp-compliance": {
      "command": "npx",
      "args": [
        "-y",
        "@yawlabs/mcp-compliance"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp-compliance]
command = "npx"
args = ["-y", "@yawlabs/mcp-compliance"]

.cursor/mcp.json

{
  "mcpServers": {
    "mcp-compliance": {
      "command": "npx",
      "args": [
        "-y",
        "@yawlabs/mcp-compliance"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "mcp-compliance": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@yawlabs/mcp-compliance"
      ]
    }
  }
}

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MCP Compliance — questions

Answers built from our own checks of this server.

Why is there no uptime for MCP Compliance?

MCP Compliance 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 @yawlabs/mcp-compliance was installed 644 times last week.

How do I connect MCP Compliance?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @yawlabs/mcp-compliance straight from npm; nothing to host, nothing to sign up for.

How many people use MCP Compliance?

The npm package @yawlabs/mcp-compliance was installed 644 times in the last week. Week over week that is +164%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is MCP Compliance open source?

Yes — it is published under the MIT licence, written in TypeScript and 2 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.