curl --request POST \
  --url https://api.openformat.tech/v1/credit/approve \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "chain": "arbitrum-sepolia",
  "token_id": "0xd1f09c70f6f2838a3ab6209c1465af68594667ec",
  "holder_address": "0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9",
  "spender_address": "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266",
  "amount": 123
}
'

import requests

url = "https://api.openformat.tech/v1/credit/approve"

payload = {
    "chain": "arbitrum-sepolia",
    "token_id": "0xd1f09c70f6f2838a3ab6209c1465af68594667ec",
    "holder_address": "0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9",
    "spender_address": "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266",
    "amount": 123
}
headers = {
    "X-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    chain: 'arbitrum-sepolia',
    token_id: '0xd1f09c70f6f2838a3ab6209c1465af68594667ec',
    holder_address: '0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9',
    spender_address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
    amount: 123
  })
};

fetch('https://api.openformat.tech/v1/credit/approve', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.openformat.tech/v1/credit/approve",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'chain' => 'arbitrum-sepolia',
    'token_id' => '0xd1f09c70f6f2838a3ab6209c1465af68594667ec',
    'holder_address' => '0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9',
    'spender_address' => '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
    'amount' => 123
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-KEY: <api-key>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.openformat.tech/v1/credit/approve"

	payload := strings.NewReader("{\n  \"chain\": \"arbitrum-sepolia\",\n  \"token_id\": \"0xd1f09c70f6f2838a3ab6209c1465af68594667ec\",\n  \"holder_address\": \"0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9\",\n  \"spender_address\": \"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266\",\n  \"amount\": 123\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-KEY", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

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

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.openformat.tech/v1/credit/approve")
  .header("X-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"chain\": \"arbitrum-sepolia\",\n  \"token_id\": \"0xd1f09c70f6f2838a3ab6209c1465af68594667ec\",\n  \"holder_address\": \"0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9\",\n  \"spender_address\": \"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266\",\n  \"amount\": 123\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.openformat.tech/v1/credit/approve")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"chain\": \"arbitrum-sepolia\",\n  \"token_id\": \"0xd1f09c70f6f2838a3ab6209c1465af68594667ec\",\n  \"holder_address\": \"0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9\",\n  \"spender_address\": \"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266\",\n  \"amount\": 123\n}"

response = http.request(request)
puts response.read_body