Checkout API
Create/get/close; channel mirror; errors and idempotency keys.
Product
CHINAUSDT is a generic multi-tenant checkout (ZLPay). Products integrate only via public APIs.
Ledger
Integer minors; ledger then balance; one settlement per order.
Security
Envelope encryption; hard-fail when keyring is down.
Ops admin
Overview, tenants, channels, merchant pool, withdrawals, wallets.
Capabilities
One rule set from create to settle: fund flow by channel type, zero-float ledger, no plaintext secrets.
Fund flow follows channel type
Platform sweeps to the pool; self pays merchant addresses. No third-party goods custody.
USDT pool & confirmations
TRC20 polling, exclusive borrow, cool-down on close, late-pay handling.
HMAC & webhooks
Five-line signing string; idempotent fulfillment with retries.
Two consoles
Tenant console for projects/channels; owner admin for tenants, fees, and ops.
Ready to integrate?
Configure keys in the tenant console, or start with the articles for a tech review.