MCP Hook Conformance MCP Server

by studiomeyer Your server? Claim it

local only

MCP Hook Conformance runs on your own machine — the client starts it, so there is no endpoint to ping. 100 installs a week from npm. Last commit 2 Nov 2026.

Audits MCP servers for Claude Code mcp_tool hook readiness: idempotency, latency, side-effects.

Installs per day peak 17 · avg 9 · +51% w/w

a month agotoday

100

Installs / week

npm · mcp-hook-conformance

Stars

0 open issues

2 Nov 2026

Last commit

no releases in 90 days

MIT

License

TypeScript

Nothing serious here today

Today is the operative word: we check MCP Hook Conformance 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 hook-conformance -- npx -y mcp-hook-conformance

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

{
  "mcpServers": {
    "hook-conformance": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-hook-conformance"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.hook-conformance]
command = "npx"
args = ["-y", "mcp-hook-conformance"]

.cursor/mcp.json

{
  "mcpServers": {
    "hook-conformance": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-hook-conformance"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "hook-conformance": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-hook-conformance"
      ]
    }
  }
}

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MCP Hook Conformance — questions

Answers built from our own checks of this server.

Why is there no uptime for MCP Hook Conformance?

MCP Hook Conformance 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-hook-conformance was installed 100 times last week.

How do I connect MCP Hook Conformance?

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 mcp-hook-conformance straight from npm; nothing to host, nothing to sign up for.

How many people use MCP Hook Conformance?

The npm package mcp-hook-conformance was installed 100 times in the last week. Week over week that is +51%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is MCP Hook Conformance open source?

Yes — it is published under the MIT licence, written in TypeScript and 0 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.