Frankfurter MCP Server

by lineofflight Your server? Claim it

answering

Frankfurter is answering right now. Last checked moments ago. It exposes 4 tools. Last commit 9 Nov 2026.

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

Uptime history 91 days of history · worst day 84%

91 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

145 ms

Response time

average over 24h

Stars

last commit 9 Nov 2026

What changed 29

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 10 September 2026. No other catalogue keeps this.

8 Nov 4 tools changed the parameters they ask for5 times that day convert, get_rates, list_currencies and 1 more

8 Nov 4 tool descriptions were rewritten convert, get_rates, list_currencies and 1 more

8 Nov a tool changed version2 times that day

6 Nov 2 tools changed the parameters they ask for convert, get_rates

6 Nov a tool description was rewritten list_currencies

6 Nov a tool changed version

2 Nov 2 tools changed the parameters they ask for convert, get_rates

2 Nov a tool description was rewritten list_providers

2 Nov a tool changed version

23 Sep 2 tools changed the parameters they ask for convert, get_rates

and 10 more, back to 10 September 2026

Frankfurter does not always answer

Over the last week it answered 97.7% 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 0 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

Settings → Connectors → Add custom connector, then paste this address

https://mcp.frankfurter.dev/

~/.codex/config.toml

[mcp_servers.frankfurter]
url = "https://mcp.frankfurter.dev/"

.cursor/mcp.json

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

.vscode/mcp.json

{
  "servers": {
    "frankfurter": {
      "type": "http",
      "url": "https://mcp.frankfurter.dev/"
    }
  }
}

Available tools 4

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

convert

convert

Convert money using a reference rate. Returns {amount,currency}, rounded to the target's minor units (8 significant figures for metals/crypto). Set details for the rate and effective date too; identity conversions have rate 1 and date null.

currencies

list_currencies

Find currency, metal and crypto codes by code or name. Returns {code:name}; omit query for all, including historical currencies.

providers

list_providers

Find rate providers with keys, rate types, base currencies, frequency and coverage dates. Filters combine; omit for all. Use a key as provider in convert or get_rates.

rates

get_rates

Latest or dated reference rates. Provider rates retain published digits on their own base. Returns rate records; if any provider fails, returns {rates,errors} preserving successes. Retry only failed providers.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.frankfurter.dev/	streamable-http	answering	123 ms	0 min ago

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Frankfurter — questions

Answers built from our own checks of this server.

What can Frankfurter do?

It exposes 4 tools, read directly from the server on our last check. Among them: convert, get_rates, list_currencies, list_providers. 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 Frankfurter working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 145 ms. The bar chart above shows every period we have measured.

How do I connect Frankfurter?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Frankfurter need an API key?

No. Frankfurter completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Frankfurter?

It answers our handshake in 145 ms on average, which is faster than 83% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Frankfurter open source?

We cannot say either way: written in TypeScript, 6 stars on GitHub and 1 open issue, but we could not determine the licence, and without one the code is not open source by default.