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PennyRail Transaction Router

MCP server · by clay-swartz

Web APIs Streamable HTTP v0.9.0

Find and quote agent capabilities, then pay only the selected x402 execution URL.

View source ↗ More servers

Install

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

Streamable HTTPhttps://pennyrail.vercel.app/api/mcp

Client configuration

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

mcpServers{
  "mcpServers": {
    "pennyrail": {
      "url": "https://pennyrail.vercel.app/api/mcp"
    }
  }
}

About this server

PennyRail Transaction Router is listed in the Web APIs category of the MCPNav directory. It is distributed as Streamable HTTP 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 PennyRail Transaction Router MCP server?

PennyRail Transaction Router is an MCP server by clay-swartz. Find and quote agent capabilities, then pay only the selected x402 execution URL.

How do I install PennyRail Transaction Router?

Install it with: https://pennyrail.vercel.app/api/mcp. Then add the JSON config to your client's MCP settings and restart the client.

Is PennyRail Transaction Router free to use?

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

Which clients support PennyRail Transaction Router?

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