curl --request POST \
  --url https://api.zapfy.io/v1/messages/send-list \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "to": "5511999998888",
  "title": "Our plans",
  "description": "Choose the ideal plan",
  "buttonText": "Open menu",
  "footerText": "Zapfy",
  "sections": [
    {
      "rows": [
        {
          "title": "Basic plan",
          "description": "$29.90/mo",
          "rowId": "plan_basic"
        }
      ],
      "title": "Plans"
    }
  ],
  "mentionedPhones": [
    "5511999998888"
  ],
  "mentionAll": true,
  "delay": 123
}
'

import requests

url = "https://api.zapfy.io/v1/messages/send-list"

payload = {
    "to": "5511999998888",
    "title": "Our plans",
    "description": "Choose the ideal plan",
    "buttonText": "Open menu",
    "footerText": "Zapfy",
    "sections": [
        {
            "rows": [
                {
                    "title": "Basic plan",
                    "description": "$29.90/mo",
                    "rowId": "plan_basic"
                }
            ],
            "title": "Plans"
        }
    ],
    "mentionedPhones": ["5511999998888"],
    "mentionAll": True,
    "delay": 123
}
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({
    to: '5511999998888',
    title: 'Our plans',
    description: 'Choose the ideal plan',
    buttonText: 'Open menu',
    footerText: 'Zapfy',
    sections: [
      {
        rows: [{title: 'Basic plan', description: '$29.90/mo', rowId: 'plan_basic'}],
        title: 'Plans'
      }
    ],
    mentionedPhones: ['5511999998888'],
    mentionAll: true,
    delay: 123
  })
};

fetch('https://api.zapfy.io/v1/messages/send-list', 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.zapfy.io/v1/messages/send-list",
  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' => '5511999998888',
    'title' => 'Our plans',
    'description' => 'Choose the ideal plan',
    'buttonText' => 'Open menu',
    'footerText' => 'Zapfy',
    'sections' => [
        [
                'rows' => [
                                [
                                                                'title' => 'Basic plan',
                                                                'description' => '$29.90/mo',
                                                                'rowId' => 'plan_basic'
                                ]
                ],
                'title' => 'Plans'
        ]
    ],
    'mentionedPhones' => [
        '5511999998888'
    ],
    'mentionAll' => true,
    'delay' => 123
  ]),
  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.zapfy.io/v1/messages/send-list"

	payload := strings.NewReader("{\n  \"to\": \"5511999998888\",\n  \"title\": \"Our plans\",\n  \"description\": \"Choose the ideal plan\",\n  \"buttonText\": \"Open menu\",\n  \"footerText\": \"Zapfy\",\n  \"sections\": [\n    {\n      \"rows\": [\n        {\n          \"title\": \"Basic plan\",\n          \"description\": \"$29.90/mo\",\n          \"rowId\": \"plan_basic\"\n        }\n      ],\n      \"title\": \"Plans\"\n    }\n  ],\n  \"mentionedPhones\": [\n    \"5511999998888\"\n  ],\n  \"mentionAll\": true,\n  \"delay\": 123\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.zapfy.io/v1/messages/send-list")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"to\": \"5511999998888\",\n  \"title\": \"Our plans\",\n  \"description\": \"Choose the ideal plan\",\n  \"buttonText\": \"Open menu\",\n  \"footerText\": \"Zapfy\",\n  \"sections\": [\n    {\n      \"rows\": [\n        {\n          \"title\": \"Basic plan\",\n          \"description\": \"$29.90/mo\",\n          \"rowId\": \"plan_basic\"\n        }\n      ],\n      \"title\": \"Plans\"\n    }\n  ],\n  \"mentionedPhones\": [\n    \"5511999998888\"\n  ],\n  \"mentionAll\": true,\n  \"delay\": 123\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.zapfy.io/v1/messages/send-list")

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\": \"5511999998888\",\n  \"title\": \"Our plans\",\n  \"description\": \"Choose the ideal plan\",\n  \"buttonText\": \"Open menu\",\n  \"footerText\": \"Zapfy\",\n  \"sections\": [\n    {\n      \"rows\": [\n        {\n          \"title\": \"Basic plan\",\n          \"description\": \"$29.90/mo\",\n          \"rowId\": \"plan_basic\"\n        }\n      ],\n      \"title\": \"Plans\"\n    }\n  ],\n  \"mentionedPhones\": [\n    \"5511999998888\"\n  ],\n  \"mentionAll\": true,\n  \"delay\": 123\n}"

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

{
  "data": {
    "messageId": "3EB0C767D4..."
  }
}

{
  "error": "Instance not found"
}

{
  "error": "Instance not found"
}

{
  "error": "Instance not found"
}

{
  "error": "Instance not found"
}