PipRail

io.github.piprail/mcp

Budget-bound x402 payment wallet for AI agents — pays HTTP 402 URLs, capped locally. No backend.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@piprail/mcp@0.10.0"
      ],
      "env": {
        "PIPRAIL_PRIVATE_KEY": "<your PIPRAIL_PRIVATE_KEY>"
      }
    }
  }
}
Environment variables
  • PIPRAIL_PRIVATE_KEYsecretYour wallet's private key/seed for the chosen chain. Optional: omit it to run read-only (discover/quote/register/budget/guide); set it to let the agent pay. Stays on your machine; the spend policy caps every payment.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.10.0
Registry
active
Published
9/9/2026

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Show visitors that PipRail is listed here — it’s also the link we check for a free listing.

PipRail — listed on Serverdex

HTML — for your website

<a href="https://serverdex.io/server/io-github-piprail-mcp?utm_source=badge"><img src="https://serverdex.io/brand/badge.svg" alt="PipRail — listed on Serverdex" width="123" height="40" loading="lazy"></a>

Recommended. A dofollow link from your own domain is the one that counts for search engines, and it's the link we check for a free listing.

Markdown — for your README

[![PipRail — listed on Serverdex](https://serverdex.io/brand/badge.svg)](https://serverdex.io/server/io-github-piprail-mcp?utm_source=badge)

Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.