curl --request POST \
  --url https://api.allcomtelecom.com/api:XUynQtIz/costummer \
  --header 'Content-Type: application/json' \
  --data '
{
  "token": "20234397fs9vcd978qr308q9703cbfdbd9vuy07wrw97rq90qrw08",
  "page": "1",
  "per_page": "25",
  "offset": "offset",
  "company_name": "company_name",
  "fantasy_name": "fantasy_name",
  "tax_id": "tax_id"
}
'

import requests

url = "https://api.allcomtelecom.com/api:XUynQtIz/costummer"

payload = {
    "token": "20234397fs9vcd978qr308q9703cbfdbd9vuy07wrw97rq90qrw08",
    "page": "1",
    "per_page": "25",
    "offset": "offset",
    "company_name": "company_name",
    "fantasy_name": "fantasy_name",
    "tax_id": "tax_id"
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    token: '20234397fs9vcd978qr308q9703cbfdbd9vuy07wrw97rq90qrw08',
    page: '1',
    per_page: '25',
    offset: 'offset',
    company_name: 'company_name',
    fantasy_name: 'fantasy_name',
    tax_id: 'tax_id'
  })
};

fetch('https://api.allcomtelecom.com/api:XUynQtIz/costummer', 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.allcomtelecom.com/api:XUynQtIz/costummer",
  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([
    'token' => '20234397fs9vcd978qr308q9703cbfdbd9vuy07wrw97rq90qrw08',
    'page' => '1',
    'per_page' => '25',
    'offset' => 'offset',
    'company_name' => 'company_name',
    'fantasy_name' => 'fantasy_name',
    'tax_id' => 'tax_id'
  ]),
  CURLOPT_HTTPHEADER => [
    "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.allcomtelecom.com/api:XUynQtIz/costummer"

	payload := strings.NewReader("{\n  \"token\": \"20234397fs9vcd978qr308q9703cbfdbd9vuy07wrw97rq90qrw08\",\n  \"page\": \"1\",\n  \"per_page\": \"25\",\n  \"offset\": \"offset\",\n  \"company_name\": \"company_name\",\n  \"fantasy_name\": \"fantasy_name\",\n  \"tax_id\": \"tax_id\"\n}")

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

	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.allcomtelecom.com/api:XUynQtIz/costummer")
  .header("Content-Type", "application/json")
  .body("{\n  \"token\": \"20234397fs9vcd978qr308q9703cbfdbd9vuy07wrw97rq90qrw08\",\n  \"page\": \"1\",\n  \"per_page\": \"25\",\n  \"offset\": \"offset\",\n  \"company_name\": \"company_name\",\n  \"fantasy_name\": \"fantasy_name\",\n  \"tax_id\": \"tax_id\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.allcomtelecom.com/api:XUynQtIz/costummer")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"token\": \"20234397fs9vcd978qr308q9703cbfdbd9vuy07wrw97rq90qrw08\",\n  \"page\": \"1\",\n  \"per_page\": \"25\",\n  \"offset\": \"offset\",\n  \"company_name\": \"company_name\",\n  \"fantasy_name\": \"fantasy_name\",\n  \"tax_id\": \"tax_id\"\n}"

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

{
  "id": 0,
  "created_at": "now",
  "accounts_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "account_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "company_name": "string",
  "fantasy_name": "string",
  "tax_id": "string",
  "webhook": "string"
}

{
  "error": "Input Error. Check the request payload for issues."
}

{
  "error": "Requisição requer autenticação."
}

{
  "error": "Access denied. Additional privileges are needed access the requested resource"
}

{
  "error": "Not Found. The requested resource does not exist."
}

{
  "error": "Rate Limited. Too many requests."
}

{
  "error": "Unexpected error"
}