curl --request POST \
  --url https://api.oblodai.com/v1/wallet/block \
  --header 'Content-Type: application/json' \
  --header 'X-Public-Id: <api-key>' \
  --header 'X-Signature: <api-key>' \
  --header 'X-Timestamp: <api-key>' \
  --data '
{
  "address": "TXk9...c3Fd"
}
'

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.oblodai.com/v1/wallet/block",
  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([
    'address' => 'TXk9...c3Fd'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Public-Id: <api-key>",
    "X-Signature: <api-key>",
    "X-Timestamp: <api-key>"
  ],
]);

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

curl_close($curl);

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

const options = {
  method: 'POST',
  headers: {
    'X-Public-Id': '<api-key>',
    'X-Signature': '<api-key>',
    'X-Timestamp': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({address: 'TXk9...c3Fd'})
};

fetch('https://api.oblodai.com/v1/wallet/block', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.oblodai.com/v1/wallet/block"

payload = { "address": "TXk9...c3Fd" }
headers = {
    "X-Public-Id": "<api-key>",
    "X-Signature": "<api-key>",
    "X-Timestamp": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

package main

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

func main() {

	url := "https://api.oblodai.com/v1/wallet/block"

	payload := strings.NewReader("{\n  \"address\": \"TXk9...c3Fd\"\n}")

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

	req.Header.Add("X-Public-Id", "<api-key>")
	req.Header.Add("X-Signature", "<api-key>")
	req.Header.Add("X-Timestamp", "<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))

}