Introduction

title: "Introduction" description: "BchainPay is a developer-first crypto payment gateway. Accept stablecoin payments on five chains with one REST API." section: "Get started" order: 1 updated: "2026-04-18" sourcePath: "content/docs/index.mdx"

BchainPay lets you accept stablecoin payments on Ethereum, Polygon, Solana, Tron, and BNB Chain with a single REST API. Confirmed payments collect into per-coin pockets in our custodial vault. You withdraw to any address you control, on demand.

What you can build

• One-time checkouts — issue a payment intent, show the customer a QR code, fulfill on a signed webhook.
• Subscriptions — schedule recurring intents, sweep pockets monthly, reconcile from the API.
• Marketplaces — split incoming payments into per-seller pockets and let sellers withdraw themselves.
• B2B invoicing — generate invoices in any of 20+ stablecoins, accept on the customer's preferred chain.

How BchainPay is structured

1. You authenticate with a bearer API key scoped to your account.
2. You create a payment intent for an amount, currency, and network. We return a fresh on-chain address.
3. The customer pays. We watch the chain, confirm, and credit the funds to the matching pocket (one balance per Network/Coin pair).
4. We fire a signed webhook so your system can fulfill the order.
5. You withdraw any pocket balance to an external wallet whenever you like.

Next steps

• Quickstart — your first payment in 5 minutes
• Pockets & networks — how funds are organized
• Verify a webhook — secure your callback handler
• API reference — every endpoint, every field