plaxswap

Q&A

How does the crypto payment gateway work?

The merchant creates a payment with a price and order number, which returns a checkout URL. The customer is sent to the checkout, picks a coin, and sends the specified amount. Confirmed payments are added to the merchant's balance in Plaxswap. When the merchant withdraws, they pay a 0.3% fee plus the network fee.

What fees does Plaxswap charge for the payment gateway?

The platform fee is 1.5% of each payment, paid by the customer. When you withdraw to your wallet, you pay 0.3% plus the network fee. Network fees and conversion costs for coins other than your receive coin are paid by the customer inside the amount they send.

What is the Plaxswap Wallet?

The Plaxswap Wallet is a self-custody crypto wallet available as a web app and Android app. Your recovery phrase is created and kept on your device, and Plaxswap cannot move your coins or recover your recovery phrase.

What coins and networks does Plaxswap support?

The swap form supports coins on multiple networks including Tron, Ethereum, Base and others. For the payment gateway, GET /api/v1/gateway/coins lists all coins merchants can receive. Payers can use any supported coin, with conversion via Uniswap on the same network or SwapKit between networks where available.

How do I handle webhooks from the payment gateway API?

When a payment status changes, Plaxswap POSTs a signed webhook to your registered callback URL. You must verify the x-px-signature header using HMAC-SHA256 with your webhook secret, check the timestamp to reject old events, skip duplicate events using the event ID, and read the payment back from the API to verify amounts before fulfilling orders.