Docs

PayIn documentation hub.

Public concepts, product docs, and integration guidance for PayIn Cloud, PayIn Open, and PayIn Go.

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Product Lines

Understand PayIn Cloud, PayIn Open, and PayIn Go.

Concepts

Order Payments

How PayIn models invoice, checkout, and order-based stablecoin payments.

Deposits

How PayIn handles reusable or assigned deposit addresses.

Address Pools

How merchants use address pools for stablecoin payment acceptance.

Webhooks

How PayIn notifies merchant systems about payment events.

PayIn Cloud

Commercial Use

Commercial and operational considerations for PayIn Cloud merchants.

API Keys

How PayIn Cloud merchants should create, store, rotate, and protect API keys.

Hosted Payment Page

Use PayIn Cloud hosted payment pages or payment instructions in your checkout flow.

Reconciliation

Match PayIn Cloud payment events with merchant orders, invoices, balances, and accounting records.

Support and Incidents

Prepare merchant support and incident response workflows for PayIn Cloud payments.

PayIn Open

PayIn Go