Webhooks
Receive structured events when listings or verification states change.
Developer documentation
Delivery guarantees
At-least-once delivery with exponential backoff. Duplicate events include the same idempotency key so your workers can safely de-dupe.
Signing
Every payload ships with an HMAC signature using your endpoint secret. We recommend verifying before parsing JSON to reject forged traffic early.
Retries
5xx and connection resets retry for up to three days. 4xx responses pause delivery until you fix the endpoint—no silent drops.
Need an integration review? Contact the platform team.