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. 83 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 90 · avg 29 · -69% w/w

a month agotoday

Installs / week

pypi · x402lint

Stars

1 open issue

6 Sep 2026

Last commit

from GitHub

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

~/.codex/config.toml

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

.cursor/mcp.json

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

.vscode/mcp.json

{
  "servers": {
    "x402lint": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "x402lint"
      ]
    }
  }
}

Alternatives to X402lint

same job, measured the same way

x402-code-mcp

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x402 paid API for AI agents. USDC on Base. CDP facilitator.

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Orcpin

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Paid x402 facts for AI agents: signed statements, door reports, endpoint checks, chain reads

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x402lint

by something-agent

Free x402 endpoint linter: unpaid 402 challenge, payTo/asset/amount, CORS, directory readiness.

3 tools answering

X402score MCP

by zagchk

Check an x402-paid API endpoint's trust score before paying it - live-probed, not self-reported.

75 installs/wk local only

WebRef (paid)

by workers-johnaio281-webref

Web standards and time reference for agents: HTTP codes, retries, deadlines. Paid via x402.

14 tools answering

ColdRead

by something-agent

Free signed trust report on an x402 endpoint: lint, signed offers, ERC-8004, payer mix.

3 tools answering

code-graph

by cyberchronos00

Local dependency graph: callers, entry points and file:line evidence for what a change affects.

483 installs/wk local only

Readyorai

by tedoneobichajavascript

Zero-cost MCP server for local code inspection and best-practice recommendations

50 installs/wk local only

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 83 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 in the form 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 83 times in the last week. Week over week that is -69%. 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, 0 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.