mcplint MCP Server

by dleibner Your server? Claim it

answering

mcplint is answering right now. Last checked 3 min ago. It exposes 1 tools. Last commit 11 Aug 2026.

Statically audits MCP tool surfaces for token cost, schema quality, and design issues.

Uptime history 47 days of history · worst day 45%

47 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

269 ms

Response time

average over 24h

Stars

last commit 11 Aug 2026

What changed 5

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 11 August 2026. No other catalogue keeps this.

11 Aug a tool changed version3 times that day

11 Aug a tool description was rewritten check_mcp_server

11 Aug a tool changed the parameters it asks for check_mcp_server

and 2 more, back to 11 August 2026

Nothing serious here today

Today is the operative word: we check mcplint 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

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcplint --transport http https://mcplint-web.vercel.app/api/mcp

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

{
  "mcpServers": {
    "mcplint": {
      "url": "https://mcplint-web.vercel.app/api/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcplint]
url = "https://mcplint-web.vercel.app/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcplint": {
      "url": "https://mcplint-web.vercel.app/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcplint": {
      "url": "https://mcplint-web.vercel.app/api/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

mcp

check_mcp_server

Statically audit an MCP tool surface from a public HTTPS URL or tools/list snapshot. Returns deterministic scores and findings without invoking any target tool or making LLM calls. When the user asks to check another installed MCP server, read that server's complete tool definitions from client context and pass them as snapshot (MCP `name` or Cursor-style `tool` both work; do not use file paths or $ref). If those definitions are unavailable, ask the user for its public endpoint or tools/list JSON instead of inventing an audit.

Endpoints

URL	Transport	State	Latency	Checked
https://mcplint-web.vercel.app/api/mcp	streamable-http	answering	1081 ms	3 min ago

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mcplint — questions

Answers built from our own checks of this server.

What can mcplint do?

It exposes 1 tools, read directly from the server on our last check. Among them: check_mcp_server. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is mcplint working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 269 ms. The bar chart above shows every period we have measured.

How do I connect mcplint?

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 is a remote server, so there is nothing to install — the client connects to the address.

Does mcplint need an API key?

No. mcplint completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is mcplint?

It answers our handshake in 269 ms on average, which is faster than 54% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is mcplint open source?

We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.