curl --request POST \
  --url https://api.zapsterapi.com/v1/wa/recipients/batch \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "recipients": [
    "5511999999999",
    "5511888888888"
  ]
}
'

import requests

url = "https://api.zapsterapi.com/v1/wa/recipients/batch"

payload = { "recipients": ["5511999999999", "5511888888888"] }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({recipients: ['5511999999999', '5511888888888']})
};

fetch('https://api.zapsterapi.com/v1/wa/recipients/batch', 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.zapsterapi.com/v1/wa/recipients/batch",
  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([
    'recipients' => [
        '5511999999999',
        '5511888888888'
    ]
  ]),
  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.zapsterapi.com/v1/wa/recipients/batch"

	payload := strings.NewReader("{\n  \"recipients\": [\n    \"5511999999999\",\n    \"5511888888888\"\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.zapsterapi.com/v1/wa/recipients/batch")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"recipients\": [\n    \"5511999999999\",\n    \"5511888888888\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.zapsterapi.com/v1/wa/recipients/batch")

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  \"recipients\": [\n    \"5511999999999\",\n    \"5511888888888\"\n  ]\n}"

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

[
  {
    "original": "5511999999999",
    "exists": true,
    "error": {
      "code": "recipient_not_found",
      "message": "The specified recipient could not be found."
    },
    "id": "<string>",
    "is_business": true,
    "lid": "<string>",
    "name": "Padaria Pão Quente",
    "profile_picture": "https://api.zapsterapi.com/v1/wa/recipients/5511999999999/pp"
  }
]

{
  "errors": [
    {
      "code": "validation_error",
      "message": "A maximum of 100 recipients can be checked per request."
    }
  ]
}

{
  "errors": [
    {
      "code": "rate_limited",
      "message": "You can only make 10 recipient checks every 60 seconds."
    }
  ]
}

{
  "errors": [
    {
      "code": "recipient_pool_unavailable",
      "message": "The recipient verification service is temporarily unavailable. Please try again shortly."
    }
  ]
}