curl --request GET \
  --url https://secureapi.tender.cash/v1/api/system/rates/{coin} \
  --header 'x-access-id: <api-key>'

const options = {method: 'GET', headers: {'x-access-id': '<api-key>'}};

fetch('https://secureapi.tender.cash/v1/api/system/rates/{coin}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://secureapi.tender.cash/v1/api/system/rates/{coin}"

headers = {"x-access-id": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://secureapi.tender.cash/v1/api/system/rates/{coin}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "x-access-id: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

{
  "status": "success",
  "message": "success",
  "data": {
    "coin": "bitcoin",
    "usd": 82752,
    "rate": 127843151.04,
    "currency": "ngn"
  }
}

{
  "status": "error",
  "message": "Invalid Currency",
  "data": {}
}

{
  "status": "error",
  "message": "INVALID_REQUEST_SIGNATURE",
  "data": {}
}

{
  "status": "error",
  "message": "Too many requests. Max 120 per 60s.",
  "data": null
}