Exchange Rate API

MCP server for exchangerate.dev - Live FX reference rates for AI agents: 465 currency pairs across 31 currencies, majors update ~60s on trading days.

CommunityOnlineNo sign-inGlobalFreeCan modify data

What it can do

  • List Currencies: List all supported currencies with name, decimal precision, minor units, and whether the pair is derived (triangulated). Use this before other tools to discover valid currency codes.
  • Get Rate: Get the current — or historical, with date — exchange rate from one currency to another. Indicative developer-grade reference rates (aggregated market data + public reference rates), not for
  • Convert: Convert an amount from one currency to another at the current rate. Indicative developer-grade reference rates (aggregated market data + public reference rates), not for settlement or trading

What data it sees

Do you need an account

No: the server works without sign-in

MCP server for exchangerate.dev - Live FX reference rates for AI agents: 465 currency pairs across 31 currencies, majors update ~60s on trading days.

Tools: get_rate, convert, list_currencies, historical ranges, docs search. Free tier, no key needed to start. Indicative rates.

Docs: exchangerate.dev/docs

How to connect

How to connect Exchange Rate API to Claude

The server address to paste into Claude settings:

https://exchangerate--nusantara.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Exchange Rate API to ChatGPT

The server address to paste into ChatGPT settings:

https://exchangerate--nusantara.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Exchange Rate API to Cursor

The server address to paste into Cursor settings:

https://exchangerate--nusantara.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (5)

Raw names from tools/list. Only developers need these.

list_currenciesList all supported currencies with name, decimal precision, minor units, and whether the pair is derived (triangulated). Use this before other tools to discover valid currency codes.
get_rateGet the current — or historical, with date — exchange rate from one currency to another. Indicative developer-grade reference rates (aggregated market data + public reference rates), not for settlement or trading. Live rates for the 16 real-time currencies update ~60s through the trading week; market_session on every response indicates open, weekend, or interbank_closed.
convertConvert an amount from one currency to another at the current rate. Indicative developer-grade reference rates (aggregated market data + public reference rates), not for settlement or trading.
get_rangeGet a daily time-series of exchange rates over a date range (business days). Capped at 366 rows per call; use next_cursor for pagination. Indicative developer-grade reference rates (aggregated market data + public reference rates), not for settlement or trading.
search_docsSearch the exchangerate.dev FAQ corpus via BM25. Returns the top-K matching questions and answers with relevance scores. Use before answering how-to / pricing / data-sourcing questions so you cite the canonical text instead of guessing from training data.