Create a Webhook Endpoint — POST /webhooks

curl https://api.blockra.io/webhooks \
  -X POST \
  -H "X-API-Key: bk_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://your-site.com/webhooks/blockra",
    "events": ["payment.completed", "payment.expired"]
  }'

{
  "data": {
    "id": "whk_3n4o5p6q7r8s9t0u",
    "url": "https://your-site.com/webhooks/blockra",
    "events": ["payment.completed", "payment.expired"],
    "secret": "whsec_9a8b7c6d5e4f3g2h1i0j...",
    "is_active": true,
    "created_at": "2026-07-09T02:45:00.000Z"
  },
  "error": null
}