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mcplint MCP Server

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mcplint is listed as active in the registry but did not answer our last check. It exposes 1 tools. Last commit 26 Oct 2026.

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

Uptime history 91 days of history · worst day 13%
91 days agonow
41.8%
Uptime 24h
38 of 91 checks
1
Tools
read from the server
297 ms
Response time
average over 24h
0
Stars
last commit 26 Oct 2026

What changed 7

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

21 Sep a tool changed the parameters it asks for check_mcp_server
21 Sep a tool changed version
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

What the code does

We read the source, 6 d ago · tools taken from the live server · 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.

Builds a file path from a variable apps/web/lib/directory/data.ts:26
  return parse(readFileSync(path.join(DATA_ROOT, relative), "utf8"));

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.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

run in your terminal
claude mcp add mcplint --transport http https://mcplint-web.vercel.app/api/mcp
Settings → Connectors → Add custom connector, then paste this address
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
{
  "servers": {
    "mcplint": {
      "type": "http",
      "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

URLTransportStateLatencyChecked
https://mcplint-web.vercel.app/api/mcp streamable-http answering 20 ms 4 min ago

Alternatives to mcplint

same job, measured the same way
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Statically audits MCP tool surfaces for token cost, schema quality, and design issues.

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Stitch Wand
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T
ToolSchema Forge
by workers-toolschemaforge-toolschema-forge

Convert, lint and generate LLM tool schemas for OpenAI, Anthropic, Gemini and MCP

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SkillFM Claude Code Token Usage
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Claude Code token usage, cost visibility, and SkillFM Beacon AI health checks for MCP agents.

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Code Sentinel
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Code quality analysis MCP server - detects security issues, deceptive patterns, and placeholders

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Vaspera Hardening
by rcolkitt

Enterprise certification for codebases with multi-agent security, reliability, and quality audits

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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 38 of 91 checks got a reply (41.8%), average response time 297 ms. The bar chart above shows every period we have measured.
The registry lists mcplint as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
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 in the form 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 297 ms on average, which is faster than 48% 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.