The catalogue

Everything on this page came from GET /api/v2/brands and GET /api/v2/brands/{brand_code}/products, and is served from a cache refreshed on a timer (10 minutes) rather than per page view. Prices are indicative until an order locks one.

cached, 3m ago

USDT

Code: usdt
Unit: USDT
Destination: USDT cüzdan adresi (TRC20) (blockchain_address, nile)

Denominations Custom 5–100 USDT

What this demo shows

API channel: Register a customer, create an order with an Idempotency-Key and a partner_reference, then send the browser to payment_url.
Web redirect: An HS256 checkout token in an auto-submitting POST form, and the return redirect verified before its status is believed — as a hint, not a result.
Webhooks: Verified in constant time against the configured path, stale timestamps refused, deduplicated on event_id, out-of-order events ignored, answered 200 fast.
Operator log: Every webhook and every API call, at /ops/log.