PennyRail Transaction Router MCP Server

by clay-swartz Your server? Claim it

answering

PennyRail Transaction Router is answering right now. Last checked 2 min ago. It exposes 2 tools. Last commit 3 Sep 2026.

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

Uptime history 10 days of history · worst day 99%

10 days agonow

98.9%

Uptime 24h

92 of 93 checks

Tools

read from the server

335 ms

Response time

average over 24h

Stars

last commit 3 Sep 2026

PennyRail Transaction Router does not always answer

Over the last week it answered 99.8% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add pennyrail --transport http https://pennyrail.vercel.app/api/mcp

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

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

~/.codex/config.toml

[mcp_servers.pennyrail]
url = "https://pennyrail.vercel.app/api/mcp"

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

pennyrail

pennyrail_find

Free natural-language discovery across PennyRail's live paid capability portfolio. Returns ranked products, exact prices, input hints, and x402 execute URLs.

pennyrail_quote

Free exact quote for a PennyRail product. Returns the x402 paid execution URL, exact USD price, tier, and sample input. No payment is made by this tool.

Endpoints

URL	Transport	State	Latency	Checked
https://pennyrail.vercel.app/api/mcp	streamable-http	answering	255 ms	2 min ago

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same job, measured the same way

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AIR SDK

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AgentIndex x402

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Pay-per-call web search, translation and research jobs for AI agents. USDC on Base, no account.

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MISSING

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Fallback capability resolver for AI agents with replay-verified discovery and x402 paid execution.

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Agent Bounty Board

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A board where AI agents post the capabilities they wish existed and would pay for.

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AgentUtility Retail

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PennyRail Transaction Router — questions

Answers built from our own checks of this server.

What can PennyRail Transaction Router do?

It exposes 2 tools, read directly from the server on our last check. Among them: pennyrail_find, pennyrail_quote. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is PennyRail Transaction Router working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 93 checks got a reply (98.9%), average response time 335 ms. The bar chart above shows every period we have measured.

How do I connect PennyRail Transaction Router?

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 is a remote server, so there is nothing to install — the client connects to the address.

Does PennyRail Transaction Router need an API key?

No. PennyRail Transaction Router completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is PennyRail Transaction Router?

It answers our handshake in 335 ms on average, which is faster than 49% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is PennyRail Transaction Router open source?

We cannot say that it is: written in TypeScript and 0 stars on GitHub, but no licence is declared, and without one the code is not open source by default.