Overview
Currency Converter works by analyzing the amount and currency provided and converting the currency rate. It uses advanced algorithms to convert the currency rate based on the amount and currency and returns the converted currency rate.
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.
curl "https://api.apiverve.com/v1/currencyconverter?value=1&from=USD&to=EUR" \
-H "x-api-key: your_api_key_here"const res = await fetch('https://api.apiverve.com/v1/currencyconverter?value=1&from=USD&to=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);import requests
res = requests.get(
"https://api.apiverve.com/v1/currencyconverter?value=1&from=USD&to=EUR",
headers={"x-api-key": "your_api_key_here"},
timeout=15,
)
res.raise_for_status()
print(res.json()["data"])package main
import (
"fmt"
"io"
"net/http"
)
func main() {
req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/currencyconverter?value=1&from=USD&to=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.
A 401 means the key is missing, invalid or expired. A 403 means the key is valid but not permitted here — blocked by a key restriction or an IP allow-list. Running out of credits is a 429.
Parameters
Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them.
| Parameter | Type | Description |
|---|---|---|
valueRequired | number | The amount to convert range 0–∞ |
fromRequired | string | The ISO 4217 currency code to convert from |
toRequired | string | The ISO 4217 currency code to convert to |
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.
{
"status": "ok",
"error": null,
"data": {
"from": "USD",
"to": "EUR",
"value": 1,
"convertedValue": 0.921456,
"rate": 0.921456,
"change24h": -0.002134,
"change24hPct": -0.2312,
"changeDirection": "down",
"high24h": 0.924521,
"low24h": 0.919823
}
}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.
| Field | Type | Example | Description |
|---|---|---|---|
from | string | "USD" | Source currency code (e.g., USD, EUR) |
to | string | "EUR" | Target currency code (e.g., USD, EUR) |
value | number | 1 | Original amount to convert |
convertedValue | number | 0.921456 | Converted amount in target currency |
rate | number | 0.921456 | Current exchange rate for the currency pair |
change24hPremium | number | -0.002134 | Rate change vs 24 hours ago |
change24hPctPremium | number | -0.2312 | Percentage rate change vs 24 hours ago |
changeDirection | string | "down" | Direction of 24h change: up, down, or unchanged |
high24hPremium | number | 0.924521 | Highest rate in the past 24 hours |
low24hPremium | number | 0.919823 | Lowest rate in the past 24 hours |
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.
| Status | Meaning | What to do |
|---|---|---|
400 | Input was rejected | Read error; it names the parameter. |
401 | Key missing or invalid | Check the header name and the key value. |
403 | Key valid, but not permitted | A key restriction or IP allow-list; see key scoping. |
429 | Rate limited, or out of credits | Read error to tell them apart; see rate limits. |
Use cases
- Travel & Tourism
- Use the Currency Converter API to convert currency rates for travel and tourism. Use the data to calculate exchange rates, plan budgets, and manage expenses
- E-Commerce
- Convert currency rates by using the Currency Converter API for e-commerce. Use the data to display prices, process payments, and manage transactions
- Finance & Investment
- Use the Currency Converter API to convert currency rates for finance and investment. Use the data to analyze markets, make decisions, and manage portfolios
- International Business
- Convert currency rates by using the Currency Converter API for international business. Use the data to conduct transactions, negotiate deals, and expand operations
Other ways to use Currency Converter
Set up Currency Converter 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:
- CORSReference
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