Documentation

What is xchangr8?

xchangr8 is a fast, reliable exchange rate API built for developers. It provides real-time and historical foreign exchange data for 31 currencies, powered by institutional-grade sources. A single HTTP request gives you fresh rates, conversion results, and time-series data — with sub-100ms response times at the edge.

Whether you are building an e-commerce checkout, a fintech dashboard, or a travel app, xchangr8 handles the FX data layer so you don't have to.

Response format

Every response from /v1/latest follows this shape:

# Fetch latest rates with USD as base
curl https://api.xchangr8.com/v1/latest \
  -H "X-API-Key: xc8_live_YOUR_KEY"

const res = await fetch(
  'https://api.xchangr8.com/v1/latest?base=USD',
  { headers: { 'X-API-Key': 'xc8_live_YOUR_KEY' } }
)
const { rates } = await res.json()
console.log(`1 USD = ${rates.EUR} EUR`)

import requests

r = requests.get(
    'https://api.xchangr8.com/v1/latest',
    params={'base': 'USD'},
    headers={'X-API-Key': 'xc8_live_YOUR_KEY'}
)
data = r.json()

{
  "base":        "USD",
  "timestamp":   1749340800,
  "freshness":   "1m ago",
  "source":      "fastforex",
  "rates": {
    "EUR": 0.9201,
    "GBP": 0.7823,
    "JPY": 149.85,
    "AUD": 1.5412
  }
}