// Node.js (servidor — recomendado)
const headers = {
  'Authorization': `Token ${process.env.CAKTO_API_TOKEN}`,
  'Content-Type': 'application/json',
}

function caktoHeaders(): HeadersInit {
  return {
    'Authorization': `Token ${process.env.CAKTO_API_TOKEN!}`,
    'Content-Type': 'application/json',
  }
}

import os

def cakto_headers() -> dict:
    return {
        'Authorization': f'Token {os.environ["CAKTO_API_TOKEN"]}',
        'Content-Type': 'application/json',
    }

curl -X POST https://api.cakto.com.br/api/checkout/ \
  -H "Authorization: Token ${CAKTO_API_TOKEN}" \
  -H "Content-Type: application/json" \
  -d '{ ... }'