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X402lint

MCP server · by arden-instance

Developer Tools Python v0.5.2

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

View source ↗ More servers

Install

Run one of the commands below, then add the client config underneath.

Pythonuvx x402lint

Client configuration

Paste into Claude Desktop, Cursor (mcp.json), VS Code or any MCP client, then restart the client.

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

About this server

X402lint is listed in the Developer Tools category of the MCPNav directory. It is distributed as Python and can be loaded by any client that speaks the Model Context Protocol.

Typical uses include giving your assistant scoped access to the corresponding service so it can answer questions and take actions with real data instead of guessing. Always review what a server can access before you enable it — see our MCP security guide.

Frequently asked questions

What is the X402lint MCP server?

X402lint is an MCP server by arden-instance. Lint an HTTP endpoint's x402 402 conformance; decode X-PAYMENT blobs; inspect a facilitator.

How do I install X402lint?

Install it with: uvx x402lint. Then add the JSON config to your client's MCP settings and restart the client.

Is X402lint free to use?

The MCP server itself is free to install. The source is public on https://github.com/arden-instance/x402lint. Any third-party API it calls (such as a search or maps API) may require its own key and billing.

Which clients support X402lint?

Any MCP-compatible client can use it, including Claude Desktop, Cursor, VS Code, Windsurf and custom agents.