Product Lines
PayIn is a product family for stablecoin payments across online, self-hosted, and in-person merchant scenarios.
| Product | Best for | Operating model | Primary docs |
|---|---|---|---|
| PayIn Cloud | Online merchants who want a hosted payment service | PayIn operates the payment infrastructure | Cloud docs |
| PayIn Open | Merchants who want to self-host their own payment gateway | Merchant deploys and operates PayIn Open | Open docs |
| PayIn Go | In-person and face-to-face merchants | Lightweight point-of-sale payment flows | Go docs |
Shared concepts
The core payment concepts are shared across the product family:
- Stablecoin payment orders
- Deposit addresses
- Sandbox and production environments
- Blockchain monitoring
- Webhooks and merchant system updates
- Settlement, reconciliation, and operational risk controls
These concepts are documented once in this public docs hub so Cloud, Open, and Go content can reference the same language.
Product boundary
PayIn Cloud and PayIn Open are not “free vs paid tiers” of the same deployment. They are different operating models:
- In PayIn Cloud, PayIn hosts and operates the payment service.
- In PayIn Open, the merchant self-hosts and operates the open-source payment gateway.
- In PayIn Go, the product is optimized for in-person payment acceptance and face-to-face merchant workflows.