What is a crypto payment gateway and how it works
A crypto payment gateway is a service that lets businesses accept cryptocurrency payments and credits them automatically.
A crypto payment gateway sits between the customer’s wallet and the merchant’s system. The merchant creates a payment through an API or dashboard; the gateway issues an address and the exact amount; the customer pays from any wallet or exchange; the gateway watches the blockchain, waits for confirmation and notifies the merchant’s backend. For the merchant, it works like a card processor, but the money moves over a blockchain.
Accepting crypto directly to a personal wallet works for a few payments, but quickly breaks down. You need to match transfers to orders, handle wrong amounts and networks, wait for the right number of confirmations, monitor several blockchains, consolidate funds from many addresses and pay network fees. A gateway automates all of this.
The main components to look at are: the list of networks and coins; how payments are identified (separate addresses or memos); what happens with underpayments and overpayments; how the exchange rate is fixed for prices in fiat; how webhooks are signed and retried; how payouts are protected; and how fees are charged. A test environment is essential for integration.
Common mistakes when choosing a gateway are focusing only on the fee percentage, ignoring how support handles wrong-network payments, accepting unsigned webhooks, and not checking how withdrawals are confirmed. For high volumes, reliability of confirmation and delivery of notifications matter more than a fraction of a percent.
Moonvex is a crypto payment gateway for TRON, Ethereum, BNB Smart Chain, Solana, TON and Bitcoin. It offers a payment page, API with a Node.js SDK (@moonvex/node), HMAC-signed webhooks, payouts with 2FA, a Telegram bot and a test webhook event, with a percentage fee and no monthly fee.
What a good gateway should handle
- unique address per payment, no memo required
- confirmation from more than one data source
- underpayments, overpayments and late payments
- signed webhooks with retries and a delivery log
- idempotent API for payments and payouts
- a test environment for integration