MCP server

Frankfurter

io.github.lineofflight/frankfurter

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Working at last checkAbout 926 tokens per request once connected4 tools

https://mcp.frankfurter.dev/

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 4
Token cost: About 926 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

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

Gemini CLI

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

Cursor

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

VS Code

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

Antigravity

agy mcp add frankfurter https://mcp.frankfurter.dev/

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"frankfurter","server_url":"https://mcp.frankfurter.dev/","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"frankfurter","server_url":"https://mcp.frankfurter.dev/"}

convert ~390 tokens
Convert 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 `provider` to use one institution's published rate, e.g. UST for a U.S. Treasury r
get_rates ~352 tokens
Latest 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.
list_currencies ~72 tokens
List all supported ISO 4217 currency codes and their full names (e.g. { 'USD': 'United States Dollar' }).
list_providers ~112 tokens
List 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 rates instead of the blend.

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