X402lint MCP Server

by arden-instance Your server? Claim it

local only

X402lint runs on your own machine — the client starts it, so there is no endpoint to ping. 2 062 installs a week from pypi. Last commit 6 Sep 2026.

Lint an HTTP endpoint's x402 402 conformance; decode X-PAYMENT blobs; inspect a facilitator.

Installs per day peak 1 067 · avg 438

a month agotoday

2 062

Installs / week

pypi · x402lint

Stars

0 open issues

6 Sep 2026

Last commit

0 releases in 90 days

MIT

License

Python

Nothing serious here today

Today is the operative word: we check X402lint 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 x402lint -- uvx x402lint

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

{
  "mcpServers": {
    "x402lint": {
      "args": [
        "x402lint"
      ],
      "command": "uvx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.x402lint]
command = "uvx"
args = ["x402lint"]

.cursor/mcp.json

{
  "mcpServers": {
    "x402lint": {
      "args": [
        "x402lint"
      ],
      "command": "uvx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "x402lint": {
      "args": [
        "x402lint"
      ],
      "command": "uvx"
    }
  }
}

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X402lint — questions

Answers built from our own checks of this server.

Why is there no uptime for X402lint?

X402lint 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 pypi package x402lint was installed 2 062 times last week.

How do I connect X402lint?

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 x402lint straight from pypi; nothing to host, nothing to sign up for.

How many people use X402lint?

The pypi package x402lint was installed 2 062 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is X402lint open source?

Yes — it is published under the MIT licence, written in Python 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.