Frankfurter

by @lineofflight · io.github.lineofflight/frankfurter

Convert currencies and fetch blended FX rates from 50+ institutional sources.

OnlineRemote

Category: Search and web data
Connection: Remote (HTTP)
Tools: 4 reported
Status: Online

Connect it to your AI

Claude Code

claude mcp add --transport http frankfurter https://mcp.frankfurter.dev/

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://mcp.frankfurter.dev/

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "frankfurter": {
      "url": "https://mcp.frankfurter.dev/"
    }
  }
}

Tools it offers

4 tools, as the server itself reported during our check on Oct 31, 2026.

get_ratesLatest or a single day's exchange rates. The raw-rate companion to `convert`. With `provider`, published rates from one or more institutions: on its own base the digits are as published, with the date they took effect.
convertConvert an amount from one currency to another. Returns {amount, currency} rounded to the target's minor units. Upstream rounds rates per direction; for low-value sources, flip via `get_rates` for more precision. Pass `p
list_currenciesList all supported ISO 4217 currency codes and their full names (e.g. { 'USD': 'United States Dollar' }).
list_providersList the institutions whose rates Frankfurter relays, with key, rate type, frequency (daily, monthly or quarterly) and coverage dates. Use a key as `provider` in `convert` or `get_rates` for that institution's published

Questions

What is the Frankfurter MCP server?

Convert currencies and fetch blended FX rates from 50+ institutional sources. It is made by @lineofflight and listed in the official MCP Registry as io.github.lineofflight/frankfurter. MCP (Model Context Protocol) is the open standard that lets AI apps like Claude, ChatGPT and Cursor use outside tools.

How do I add Frankfurter to Claude?

In the Claude app or claude.ai, open Settings, then Connectors, choose "Add custom connector" and paste https://mcp.frankfurter.dev/. In Claude Code, run: claude mcp add --transport http frankfurter https://mcp.frankfurter.dev/

How do I add Frankfurter to ChatGPT?

ChatGPT can use remote MCP servers as connectors. In ChatGPT settings, under Apps and Connectors, turn on developer mode if asked, create a new connector and paste https://mcp.frankfurter.dev/.

How do I add Frankfurter to Cursor?

Open Cursor settings, go to MCP, choose "Add new MCP server" (or edit ~/.cursor/mcp.json) and add: { "mcpServers": { "frankfurter": { "url": "https://mcp.frankfurter.dev/" } } }

Does Frankfurter work right now?

Yes. It responded when we last checked on 31 Oct 2026. We check remote MCP servers every day.

What can Frankfurter do?

It gives your AI 4 tools, including get_rates, convert, list_currencies, list_providers. The full list is on this page.

Is this your server? Get the badge for your README

Markdown (GitHub README)

[![Listed on chen.media/mcp](https://chen.media/mcp/badge/github-lineofflight-frankfurter.svg)](https://chen.media/mcp/github-lineofflight-frankfurter)

HTML (switches to dark mode on its own)

<a href="https://chen.media/mcp/github-lineofflight-frankfurter"><picture><source media="(prefers-color-scheme: dark)" srcset="https://chen.media/mcp/badge/github-lineofflight-frankfurter.svg?theme=dark"><img src="https://chen.media/mcp/badge/github-lineofflight-frankfurter.svg" alt="Listed on chen.media/mcp" height="40"></picture></a>

Frankfurter

Connect it to your AI

Claude Code

Claude, ChatGPT, Cursor and other apps

Cursor, VS Code and other apps (mcp.json)

Tools it offers

Questions

Markdown (GitHub README)

HTML (switches to dark mode on its own)

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