TRC-20 USDT payment gateway

Create an invoice with the asset USDT_TRC20 on tron-mainnet. The response carries a one-time Tron deposit address, the amount due and the confirmations required.

POST /v1/invoices

{
  "referenceId": "order_10231",
  "fiat": { "amount": "49.99", "currency": "USD" },
  "crypto": { "asset": "USDT_TRC20", "chainId": "tron-mainnet" }
}

Requests are signed with HMAC-SHA256; the Node SDK does it for you. See the crypto payment API.

Payaries watches the address. When the transfer appears the invoice moves to detected, then confirming while confirmations accrue, and to confirmed when the required number is reached — your ledger is credited at that point and an invoice.status_changed webhook fires. The required number is returned on each invoice (confirmations.required). Why confirmations matter.

• Payaries sweeps the deposit to your own Tron wallet; once that confirms, the amount is withdrawable.
• Moving a TRC-20 token costs TRX. Where Payaries's gas station covers Tron you hold none — the cost is recovered as a network fee inside the transaction. Otherwise keep a little TRX in your Tron wallet. Read gasSponsored on the wallet rather than assuming; see network fees and the gas station.
• Withdraw to any Tron address on demand, from the dashboard or the API.