What tools does the pennyrail MCP server provide?

pennyrail exposes 2 tools: pennyrail_find, pennyrail_quote. This list was returned by the running server when we connected to it.

Does pennyrail require an API key?

No. pennyrail answered a tools/list request without credentials.

How do I install pennyrail?

Run: claude mcp add --transport http pennyrail https://pennyrail.vercel.app/api/mcp. One-click install links for Cursor and VS Code are also available on the server's page.

Connection check verified live · 27h ago

pennyrail

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

Finance & crypto Web search & scraping

Install

Remote (HTTP)

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

Tools 2

GitHub stars —

Installs / wk —

Licence —

Transport streamable-http

Last checked 27h ago

Tools & capabilities

2 tools

Read from the running server on 27h ago.

pennyrail_find limitintent*

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

pennyrail_quote intentproductId

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.

Context cost

Light

Connecting this server adds 2 tool definitions to every request — roughly 180 tokens before you ask anything.

Adds little to your context. Safe to keep connected.

Estimated at ~90 tokens per tool. Actual size varies with schema complexity — treat this as an order of magnitude, not a measurement.

both mention “selected” · 6 tools

goodmemory local install

both mention “selected” · 54 tools

Ranked by shared tools where both expose an inventory, otherwise by shared wording.

Source & links

Repository: clay-swartz/pennyrail
Registry: io.github.clay-swartz/pennyrail
Endpoint: https://pennyrail.vercel.app/api/mcp
Sources: registry