Exchange Rate

Overview

A currency rate API in one call: pass two currency codes as parameters to receive the current conversion multiplier and an ISO 8601 timestamp showing when the rate refreshed. The response covers over 170 currencies in real time. Paid plans also return the inverse rate for reverse conversions without a second call.

Live Test Exchange Rate API →

Endpoint

One host, one path per API. The block below shows this call in four languages; every one of them is the same HTTP request. Making requests covers the timeouts, retries and parameter rules that apply to all of them. The SDKs wrap the same call in a typed client.

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curl "https://api.apiverve.com/v1/exchangerate?currency1=USD&currency2=EUR" \
  -H "x-api-key: your_api_key_here"

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const res = await fetch('https://api.apiverve.com/v1/exchangerate?currency1=USD&currency2=EUR', {
  headers: { 'x-api-key': 'your_api_key_here' },
});

if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);

const { data } = await res.json();
console.log(data);

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import requests

res = requests.get(
    "https://api.apiverve.com/v1/exchangerate?currency1=USD&currency2=EUR",
    headers={"x-api-key": "your_api_key_here"},
    timeout=15,
)
res.raise_for_status()

print(res.json()["data"])

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package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/exchangerate?currency1=USD&currency2=EUR", nil)
	req.Header.Set("x-api-key", "your_api_key_here")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	out, _ := io.ReadAll(res.Body)
	fmt.Println(string(out))
}

Replace your_api_key_here with the key from your dashboard. When the inputs arrive as a list rather than one at a time, batch requests run up to 200 of them through this same API in a single call.

Authentication

Send your key in the x-api-key header. That is the only auth step — there is no token exchange and no per-endpoint scope to configure. Authentication covers creating, rotating and revoking keys.

Parameters

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them.

Response

Every API returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape. Response format covers the envelope, the other output formats and how premium fields are withheld.

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{
  "status": "ok",
  "error": null,
  "data": {
    "currency1": "USD",
    "currency2": "EUR",
    "exchangeRate": "0.866664",
    "inverseRate": "1.153850",
    "lastUpdated": "2026-09-16T02:00:27.378Z"
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change. Error handling covers the full status list and which of them are worth retrying.

Start from a template

A working app built on this API, ready to deploy with your own key. Vercel asks for the key when you deploy; the code is on GitHub to change first.

Currency Converter

Convert an amount between 21 currencies at today’s exchange rate.

• Python
• Flask

Deploy to VercelSee the template →

Use cases

Multi-Currency Checkout

Convert product catalog totals into a buyer's local currency at payment time so shoppers review exact prices before charging their cards.

Cross-Border Invoicing

When billing foreign clients, SaaS platforms convert base subscription fees into regional currencies to generate accurate invoices.

Travel Booking Conversion

Travel booking engines convert hotel and flight rates into the traveler's home currency so customers can compare international costs.

Remittance Payout Preview

To eliminate foreign exchange surprises, fintech apps display the converted payout amount before a user confirms an international wire.

Other ways to use Exchange Rate

Set up Exchange Rate on APIVerve, or reach the same source a different way. Your APIVerve account and credits work on all of them — one key, one balance.

Related

Pages that use this API:

• GraphQLPlatform

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