Mande WhatsApp ilimitado.
Sem ban. Sem Meta. Sem custo por mensagem.

curl -X POST https://api.catcher.one/v1/instances/INSTANCE_ID/messages/text \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "to": "5511999999999",
    "text": "Olá! Mensagem enviada via Catcher."
  }'

const res = await fetch(
  'https://api.catcher.one/v1/instances/INSTANCE_ID/messages/text',
  {
    method: 'POST',
    headers: {
      'X-API-Key': 'YOUR_API_KEY',
      'Content-Type': 'application/json',
      'Idempotency-Key': crypto.randomUUID(),
    },
    body: JSON.stringify({
      to: '5511999999999',
      text: 'Olá! Mensagem enviada via Catcher.',
    }),
  }
)
const data = await res.json()
console.log(data.message_id)

import httpx, uuid

response = httpx.post(
    "https://api.catcher.one/v1/instances/INSTANCE_ID/messages/text",
    headers={
        "X-API-Key": "YOUR_API_KEY",
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "to": "5511999999999",
        "text": "Olá! Mensagem enviada via Catcher.",
    },
)
print(response.json()["message_id"])

<?php
$client = new \GuzzleHttp\Client();
$response = $client->post(
    'https://api.catcher.one/v1/instances/INSTANCE_ID/messages/text',
    [
        'headers' => [
            'X-API-Key'        => 'YOUR_API_KEY',
            'Idempotency-Key'  => \Ramsey\Uuid\Uuid::uuid4()->toString(),
        ],
        'json' => [
            'to'   => '5511999999999',
            'text' => 'Olá! Mensagem enviada via Catcher.',
        ],
    ]
);
echo json_decode($response->getBody())->message_id;

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"net/http"

	"github.com/google/uuid"
)

func main() {
	body, _ := json.Marshal(map[string]string{
		"to":   "5511999999999",
		"text": "Olá! Mensagem enviada via Catcher.",
	})
	req, _ := http.NewRequest("POST",
		"https://api.catcher.one/v1/instances/INSTANCE_ID/messages/text",
		bytes.NewReader(body))
	req.Header.Set("X-API-Key", "YOUR_API_KEY")
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("Idempotency-Key", uuid.NewString())

	resp, _ := http.DefaultClient.Do(req)
	defer resp.Body.Close()
	var out map[string]any
	json.NewDecoder(resp.Body).Decode(&out)
	fmt.Println(out["message_id"])
}

require 'net/http'
require 'json'
require 'securerandom'

uri  = URI('https://api.catcher.one/v1/instances/INSTANCE_ID/messages/text')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

req = Net::HTTP::Post.new(uri)
req['X-API-Key']       = 'YOUR_API_KEY'
req['Content-Type']    = 'application/json'
req['Idempotency-Key'] = SecureRandom.uuid
req.body = JSON.generate(
  to:   '5511999999999',
  text: 'Olá! Mensagem enviada via Catcher.'
)

res = http.request(req)
puts JSON.parse(res.body)['message_id']