curl --request POST \
  --url https://api.openformat.tech/v1/credit/transfer \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "chain": "arbitrum-sepolia",
  "token_id": "0xd1f09c70f6f2838a3ab6209c1465af68594667ec",
  "holder_address": "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266",
  "receiver_address": "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266",
  "amount": 123,
  "deadline": 1700766991,
  "signedPermit": {
    "r": "0xab26c603cc459019835a3872bf1d8b4142f23c40f952f208e8c1dfacf857b9f0",
    "s": "0x61d6e5f463437afd2a541fb88d806f8e71718a6af5227043be06b0dd59b3503f",
    "v": 28
  }
}
'

import requests

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

payload = {
    "chain": "arbitrum-sepolia",
    "token_id": "0xd1f09c70f6f2838a3ab6209c1465af68594667ec",
    "holder_address": "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266",
    "receiver_address": "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266",
    "amount": 123,
    "deadline": 1700766991,
    "signedPermit": {
        "r": "0xab26c603cc459019835a3872bf1d8b4142f23c40f952f208e8c1dfacf857b9f0",
        "s": "0x61d6e5f463437afd2a541fb88d806f8e71718a6af5227043be06b0dd59b3503f",
        "v": 28
    }
}
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: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
    receiver_address: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
    amount: 123,
    deadline: 1700766991,
    signedPermit: {
      r: '0xab26c603cc459019835a3872bf1d8b4142f23c40f952f208e8c1dfacf857b9f0',
      s: '0x61d6e5f463437afd2a541fb88d806f8e71718a6af5227043be06b0dd59b3503f',
      v: 28
    }
  })
};

fetch('https://api.openformat.tech/v1/credit/transfer', 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/transfer",
  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' => '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
    'receiver_address' => '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
    'amount' => 123,
    'deadline' => 1700766991,
    'signedPermit' => [
        'r' => '0xab26c603cc459019835a3872bf1d8b4142f23c40f952f208e8c1dfacf857b9f0',
        's' => '0x61d6e5f463437afd2a541fb88d806f8e71718a6af5227043be06b0dd59b3503f',
        'v' => 28
    ]
  ]),
  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/transfer"

	payload := strings.NewReader("{\n  \"chain\": \"arbitrum-sepolia\",\n  \"token_id\": \"0xd1f09c70f6f2838a3ab6209c1465af68594667ec\",\n  \"holder_address\": \"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266\",\n  \"receiver_address\": \"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266\",\n  \"amount\": 123,\n  \"deadline\": 1700766991,\n  \"signedPermit\": {\n    \"r\": \"0xab26c603cc459019835a3872bf1d8b4142f23c40f952f208e8c1dfacf857b9f0\",\n    \"s\": \"0x61d6e5f463437afd2a541fb88d806f8e71718a6af5227043be06b0dd59b3503f\",\n    \"v\": 28\n  }\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/transfer")
  .header("X-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"chain\": \"arbitrum-sepolia\",\n  \"token_id\": \"0xd1f09c70f6f2838a3ab6209c1465af68594667ec\",\n  \"holder_address\": \"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266\",\n  \"receiver_address\": \"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266\",\n  \"amount\": 123,\n  \"deadline\": 1700766991,\n  \"signedPermit\": {\n    \"r\": \"0xab26c603cc459019835a3872bf1d8b4142f23c40f952f208e8c1dfacf857b9f0\",\n    \"s\": \"0x61d6e5f463437afd2a541fb88d806f8e71718a6af5227043be06b0dd59b3503f\",\n    \"v\": 28\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

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

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\": \"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266\",\n  \"receiver_address\": \"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266\",\n  \"amount\": 123,\n  \"deadline\": 1700766991,\n  \"signedPermit\": {\n    \"r\": \"0xab26c603cc459019835a3872bf1d8b4142f23c40f952f208e8c1dfacf857b9f0\",\n    \"s\": \"0x61d6e5f463437afd2a541fb88d806f8e71718a6af5227043be06b0dd59b3503f\",\n    \"v\": 28\n  }\n}"

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