API Reference

Code Examples

Copy-paste examples for calling the CurrencyCore API in cURL, JavaScript, Python, Go, Java, and PHP.

Every request is a plain authenticated GET. Send your key as a bearer token in the Authorization header (or the x-api-key header) — never in the URL. Pick your language below; all endpoints follow the same shape.

Replace cc_live_your_key with a key from your dashboard. See Authentication for both header options.

Convert an amount

GET /v1/convert — convert 100 USD to INR.

curl "https://api.currency-core.com/v1/convert?from=USD&to=INR&amount=100" \
  -H "Authorization: Bearer cc_live_your_key"

const res = await fetch(
  "https://api.currency-core.com/v1/convert?from=USD&to=INR&amount=100",
  { headers: { Authorization: "Bearer cc_live_your_key" } },
);
const data = await res.json();
console.log(data.results[0].result); // 8345

import requests

res = requests.get(
    "https://api.currency-core.com/v1/convert",
    params={"from": "USD", "to": "INR", "amount": 100},
    headers={"Authorization": "Bearer cc_live_your_key"},
)
data = res.json()
print(data["results"][0]["result"])  # 8345

package main

import (
	"encoding/json"
	"fmt"
	"net/http"
)

func main() {
	req, _ := http.NewRequest("GET",
		"https://api.currency-core.com/v1/convert?from=USD&to=INR&amount=100", nil)
	req.Header.Set("Authorization", "Bearer cc_live_your_key")

	res, _ := http.DefaultClient.Do(req)
	defer res.Body.Close()

	var data struct {
		Results []struct {
			Result float64 `json:"result"`
		} `json:"results"`
	}
	json.NewDecoder(res.Body).Decode(&data)
	fmt.Println(data.Results[0].Result)
}

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create("https://api.currency-core.com/v1/convert?from=USD&to=INR&amount=100"))
    .header("Authorization", "Bearer cc_live_your_key")
    .build();

HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());

<?php
$ch = curl_init("https://api.currency-core.com/v1/convert?from=USD&to=INR&amount=100");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["Authorization: Bearer cc_live_your_key"]);
$data = json_decode(curl_exec($ch), true);
curl_close($ch);
echo $data["results"][0]["result"];

All rates for a base currency

GET /v1/rates/:base — every currency expressed against EUR.

curl "https://api.currency-core.com/v1/rates/EUR" \
  -H "Authorization: Bearer cc_live_your_key"

const res = await fetch("https://api.currency-core.com/v1/rates/EUR", {
  headers: { Authorization: "Bearer cc_live_your_key" },
});
const { rates } = await res.json();
console.log(rates.USD); // USD per 1 EUR

import requests

res = requests.get(
    "https://api.currency-core.com/v1/rates/EUR",
    headers={"Authorization": "Bearer cc_live_your_key"},
)
rates = res.json()["rates"]
print(rates["USD"])  # USD per 1 EUR

req, _ := http.NewRequest("GET", "https://api.currency-core.com/v1/rates/EUR", nil)
req.Header.Set("Authorization", "Bearer cc_live_your_key")

res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()

var data struct {
	Rates map[string]float64 `json:"rates"`
}
json.NewDecoder(res.Body).Decode(&data)
fmt.Println(data.Rates["USD"])

HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create("https://api.currency-core.com/v1/rates/EUR"))
    .header("Authorization", "Bearer cc_live_your_key")
    .build();

HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());

<?php
$ch = curl_init("https://api.currency-core.com/v1/rates/EUR");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["Authorization: Bearer cc_live_your_key"]);
$data = json_decode(curl_exec($ch), true);
curl_close($ch);
echo $data["rates"]["USD"];

Need a different language or framework? Email support — we’re happy to help.