Docs

A USDC invoice that closes itself: how to create one, how the buyer pays, how the payment is matched from the chain, and what you are trusting when you use it.

• 01What Payrail isA USDC invoice that closes itself, and what that gets you.Read · 2 min→
• 02Creating invoicesRegistering as a merchant, writing an invoice, and getting a payment link.Read · 2 min→
• 03Payment flowWhat happens when a buyer opens the link. Approve, pay, and why funds never stop in between.Read · 3 min→
• 04Verification and the indexerTwo routes to PAID, the matching rules, and why both are idempotent.Read · 3 min→
• 05ContractsWhat PaymentProcessor does, the functions worth knowing, and how to run the whole thing locally.Read · 4 min→
• 06APIEvery endpoint, what it accepts and what it returns, for wiring Payrail into your own system.Read · 3 min→
• 07Risks and limitsWhat can go wrong, what you are trusting, and what has not been built yet.Read · 3 min→