curl --request POST \
  --url https://api.lehar.ai/ca/api/v0/whatsapp/senders \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "sender": "919812345678",
  "display_name": "Acme Support",
  "phone_number_id": "1234567890",
  "waba_id": "9876543210",
  "status": "pending_signup",
  "metadata": {}
}
'

import requests

url = "https://api.lehar.ai/ca/api/v0/whatsapp/senders"

payload = {
    "sender": "919812345678",
    "display_name": "Acme Support",
    "phone_number_id": "1234567890",
    "waba_id": "9876543210",
    "status": "pending_signup",
    "metadata": {}
}
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({
    sender: '919812345678',
    display_name: 'Acme Support',
    phone_number_id: '1234567890',
    waba_id: '9876543210',
    status: 'pending_signup',
    metadata: {}
  })
};

fetch('https://api.lehar.ai/ca/api/v0/whatsapp/senders', 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.lehar.ai/ca/api/v0/whatsapp/senders",
  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([
    'sender' => '919812345678',
    'display_name' => 'Acme Support',
    'phone_number_id' => '1234567890',
    'waba_id' => '9876543210',
    'status' => 'pending_signup',
    'metadata' => [
        
    ]
  ]),
  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.lehar.ai/ca/api/v0/whatsapp/senders"

	payload := strings.NewReader("{\n  \"sender\": \"919812345678\",\n  \"display_name\": \"Acme Support\",\n  \"phone_number_id\": \"1234567890\",\n  \"waba_id\": \"9876543210\",\n  \"status\": \"pending_signup\",\n  \"metadata\": {}\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.lehar.ai/ca/api/v0/whatsapp/senders")
  .header("X-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"sender\": \"919812345678\",\n  \"display_name\": \"Acme Support\",\n  \"phone_number_id\": \"1234567890\",\n  \"waba_id\": \"9876543210\",\n  \"status\": \"pending_signup\",\n  \"metadata\": {}\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.lehar.ai/ca/api/v0/whatsapp/senders")

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  \"sender\": \"919812345678\",\n  \"display_name\": \"Acme Support\",\n  \"phone_number_id\": \"1234567890\",\n  \"waba_id\": \"9876543210\",\n  \"status\": \"pending_signup\",\n  \"metadata\": {}\n}"

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

{
  "id": "wsnd_01HZY3K9M2QJ4R7V8T0N5B6C7D",
  "sender": "919812345678",
  "display_name": "Acme Support",
  "phone_number_id": "1234567890",
  "waba_id": "9876543210",
  "status": "pending_signup",
  "quality_rating": null,
  "messaging_tier": null,
  "provider": "trustsignal",
  "metadata": {},
  "created_at": "2026-09-01T10:15:00Z",
  "updated_at": "2026-09-01T10:15:00Z"
}

{
  "error": {
    "code": "invalid_request",
    "message": "sender is required (8-15 digit WhatsApp business number)"
  }
}

{
  "error": {
    "code": "unauthorized",
    "message": "Authentication required"
  }
}

{
  "error": {
    "code": "forbidden",
    "message": "This role cannot manage WhatsApp numbers"
  }
}

{
  "error": {
    "code": "not_found",
    "message": "Customer not found"
  }
}

{
  "error": {
    "code": "conflict",
    "message": "Sender 919812345678 is already registered"
  }
}