curl --request POST \
  --url https://api.otpbay.com/v1/messages/telegram \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "to": "+14155552671",
  "metadata": {
    "user_id": "usr_1042"
  }
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({to: '+14155552671', metadata: {user_id: 'usr_1042'}})
};

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

import requests

url = "https://api.otpbay.com/v1/messages/telegram"

payload = {
    "to": "+14155552671",
    "metadata": { "user_id": "usr_1042" }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.otpbay.com/v1/messages/telegram",
  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([
    'to' => '+14155552671',
    'metadata' => [
        'user_id' => 'usr_1042'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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.otpbay.com/v1/messages/telegram"

	payload := strings.NewReader("{\n  \"to\": \"+14155552671\",\n  \"metadata\": {\n    \"user_id\": \"usr_1042\"\n  }\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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.otpbay.com/v1/messages/telegram")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"to\": \"+14155552671\",\n  \"metadata\": {\n    \"user_id\": \"usr_1042\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.otpbay.com/v1/messages/telegram")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"to\": \"+14155552671\",\n  \"metadata\": {\n    \"user_id\": \"usr_1042\"\n  }\n}"

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

using RestSharp;


var options = new RestClientOptions("https://api.otpbay.com/v1/messages/telegram");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddHeader("Authorization", "Bearer <token>");
request.AddJsonBody("{\n  \"to\": \"+14155552671\",\n  \"metadata\": {\n    \"user_id\": \"usr_1042\"\n  }\n}", false);
var response = await client.PostAsync(request);

Console.WriteLine("{0}", response.Content);

{
  "sid": "TG6650c52ad3e4f5a6b7c8d9e0",
  "status": "sent",
  "verification_status": null,
  "to": "+14155552671",
  "code_length": 6,
  "cost": "0.02",
  "date_created": "2026-09-26T10:22:40.011Z",
  "expires_at": "2026-09-26T10:27:40.011Z",
  "delivered_at": null,
  "verified_at": null,
  "metadata": {
    "user_id": "usr_1042"
  }
}

{
  "error": {
    "code": "INVALID_JSON",
    "message": "Invalid JSON body"
  }
}

{
  "error": {
    "code": "INVALID_API_KEY",
    "message": "Invalid API key."
  }
}

{
  "error": {
    "code": "INSUFFICIENT_BALANCE",
    "message": "Insufficient balance for this SMS destination."
  }
}

{
  "error": {
    "code": "CHANNEL_DISABLED",
    "message": "SMS is turned off for this project."
  }
}

{
  "error": {
    "code": "TELEGRAM_REJECTED",
    "message": "Telegram rejected the request (PHONE_NUMBER_NOT_FOUND)."
  }
}

{
  "error": {
    "code": "TELEGRAM_UNAVAILABLE",
    "message": "Telegram is unavailable right now. Try again later."
  }
}