Developers

A free, no-key currency API and an embeddable converter widget. Use them in your apps, dashboards, blogs — wherever live FX rates help.

Public API

REST + JSON. CORS open to all origins. Cached for ~60s, served straight from Redis.

Base URL: https://ratata.money/api/v1
Rate limit: 60 req / min · IP
Auth: None — keyless

GET/currencies?lang=en

List all supported currencies (code, localized name, flag, decimals).

Example

curl https://ratata.money/api/v1/currencies?lang=en

Response

[
  { "code": "USD", "name": "US Dollar", "flag": "🇺🇸", "decimals": 2 },
  { "code": "EUR", "name": "Euro", "flag": "🇪🇺", "decimals": 2 }
]

GET/rates/latest?base=USD&symbols=CNY,JPY,EUR

Latest rates for one base against any number of symbols.

Example

curl "https://ratata.money/api/v1/rates/latest?base=USD&symbols=CNY,JPY,EUR"

Response

{
  "base": "USD",
  "timestamp": 1714464000,
  "rates": { "CNY": 7.2456, "JPY": 156.43, "EUR": 0.9321 },
  "source": "frankfurter"
}

GET/rates/convert?from=USD&to=CNY&amount=100

Convert an amount from one currency to another.

Example

curl "https://ratata.money/api/v1/rates/convert?from=USD&to=CNY&amount=100"

Response

{ "from": "USD", "to": "CNY", "amount": 100, "result": 724.56, "rate": 7.2456 }

GET/rates/history?base=USD&symbol=CNY&range=30d

Daily rate history. Range: 7d / 30d / 90d / 1y.

Example

curl "https://ratata.money/api/v1/rates/history?base=USD&symbol=CNY&range=30d"

Response

{
  "base": "USD",
  "symbol": "CNY",
  "range": "30d",
  "points": [
    { "date": "2026-04-01", "rate": 7.2310 },
    { "date": "2026-04-02", "rate": 7.2401 }
  ]
}

Errors

All errors return a JSON body with a stable code and a human-readable message.

{ "error": { "code": "UNSUPPORTED_CURRENCY", "message": "..." } }

Embed widget

Drop a tiny converter onto any site with a single iframe. Pick a pair, language, theme, and dimensions — copy the snippet.

FromToAmountLanguageTheme

Show attribution"Powered by Ratata"Width (px)Height (px)

Preview

Embed code

<iframe src="https://ratata.money/embed?from=USD&to=CNY&amount=100&lang=en"
  width="420" height="320"
  style="border:0;max-width:100%;border-radius:16px;overflow:hidden"
  loading="lazy"
  title="Ratata currency converter"
  referrerpolicy="no-referrer"
  allow="clipboard-write"></iframe>

Free and unmetered today, but please be a good citizen — we may add a daily cap if abuse shows up. For commercial use over a few thousand requests/day, drop a note.