Introduction

BchainPay is a crypto payment gateway for developers. One REST API lets you accept payments in ETH, SOL, TRX, BNB, USDT, USDC, DAI, BUSD across four networks — Ethereum, Solana, Tron, and BNB Chain.

You create a payment intent, generate a blockchain address, and your customer pays on-chain. BchainPay monitors the transaction and notifies you via a signed webhook when the payment completes.

What you can build

• One-time checkouts — create a payment intent, show the customer the deposit address, fulfill the order on a payment_intent.completed webhook.
• Invoices — generate payment intents per invoice with a reference field for reconciliation.
• Subscriptions — create recurring intents on a schedule and track status via the API.
• WooCommerce integration — accept crypto in WordPress with the BchainPay plugin.

Payment flow

1. Authenticate — send your API key as a Bearer token in the Authorization header.
2. Create a payment intent — POST /v1/payment-intents with an amount, currency, and optional network/token.
3. Generate an address — POST /v1/payment-intents/:id/generate-address returns a fresh on-chain deposit address.
4. Customer pays — BchainPay monitors the blockchain for the incoming transaction.
5. Webhook fires — a signed payment_intent.completed event hits your endpoint so you can fulfill the order.

Supported networks and tokens

Next steps

• Quickstart — your first payment in minutes
• Authentication — API key types and rotation
• Payment intents — lifecycle and statuses
• Verify a webhook — secure your callback handler
• API reference — full request/response schemas