MCP server

Exchange Rates

io.github.cyanheads/exchange-rates-mcp-server

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

Convert currencies, get FX rates, and query historical Frankfurter v1 exchange rate data.

Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

7

Token cost

About 2,590 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

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

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 exchange-rates-mcp-server https://exchange-rates.caseyjhand.com/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.exchange-rates-mcp-server]
url = "https://exchange-rates.caseyjhand.com/mcp"

Gemini CLI

{"mcpServers":{"exchange-rates-mcp-server":{"httpUrl":"https://exchange-rates.caseyjhand.com/mcp"}}}

Cursor

{"mcpServers":{"exchange-rates-mcp-server":{"url":"https://exchange-rates.caseyjhand.com/mcp"}}}

VS Code

{"servers":{"exchange-rates-mcp-server":{"type":"http","url":"https://exchange-rates.caseyjhand.com/mcp"}}}

Antigravity

agy mcp add exchange-rates-mcp-server https://exchange-rates.caseyjhand.com/mcp

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":"exchange-rates-mcp-server","server_url":"https://exchange-rates.caseyjhand.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"exchange-rates-mcp-server","server_url":"https://exchange-rates.caseyjhand.com/mcp"}

Tools

• fx_convert_currency ~348 tokens
  Convert an amount between any two currencies at the latest or a historical rate. Returns the converted amount, the rate used, the actual rate date, and whether the date was snapped from a weekend/holiday to the prior business day. Cross-rates are triangulated through EUR automatically.
• fx_dataframe_describe ~215 tokens
  List tables and columns staged on a DataCanvas from a prior fx_get_timeseries call. Required first step before fx_dataframe_query — use it to discover table names and column schemas. Requires DataCanvas, which is on by default — a deployment that turns it off does not list this tool at all, and fx_g
• fx_dataframe_query ~442 tokens
  Run a read-only SQL SELECT against DataCanvas tables staged by fx_get_timeseries. Supports aggregations, GROUP BY, window functions, and JOINs across multiple registered tables. Run fx_dataframe_describe first to discover table names and column schemas. Requires DataCanvas, which is on by default —
• fx_get_rate ~377 tokens
  Get the exchange rate for a currency pair on a given date (default: latest). Returns the rate, the actual rate date (which may differ from the requested date on weekends/holidays — daily observations may skip non-publication days), and source provenance. Cross-rates are triangulated through EUR auto
• fx_get_rates ~416 tokens
  Get all available exchange rates for one base currency in a single snapshot. Useful for bulk comparison and seeding downstream tools. Returns a map of quote currency → rate, the actual snapshot date, and whether a historical date was snapped from a weekend/holiday to the prior business day. Optional
• fx_get_timeseries ~651 tokens
  Get historical daily Frankfurter v1 rates for a currency pair over an inclusive date range. Rates use same-date EUR legs without intermediate rounding; only days with both currencies appear, and a self-pair is 1 on actual observation dates. Historical membership includes retired currencies. Empty no
• fx_list_currencies ~141 tokens
  List currently supported ISO 4217 currency codes with full names and as_of, the latest served rate date. Use this to disambiguate dollars (USD vs AUD vs CAD). Historical availability is checked against the requested historical snapshot or range and can include retired currencies absent from current

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