curl -X POST https://api.ugc.inc/billing/portal \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"return_url": "https://myapp.com/settings"}'

import { UGCClient } from 'ugcinc';

const client = new UGCClient({ apiKey: 'YOUR_API_KEY' });
const response = await client.billing.getPortalUrl({
  return_url: 'https://myapp.com/settings'
});

if (response.ok) {
  window.location.href = response.data.url;
}

{
  "ok": true,
  "code": 200,
  "message": "Success",
  "data": {
    "url": "https://billing.stripe.com/p/session/..."
  }
}