Global reach
Accept payments from customers and partners across borders through stablecoin settlement rails.
Stablecoin payment infrastructure
Stablecoin payments for real merchants.
A non-custodial payment layer for stablecoin merchants — hosted with PayIn Cloud or self-hosted with PayIn Open.
Why stablecoins
Stablecoins are becoming a settlement layer for global commerce.
They are fast, global, programmable, and available 24/7. PayIn adds the merchant payment layer: orders, deposits, hosted payment pages, webhooks, reconciliation, and production controls.
24/7 settlement
Stablecoin networks operate across banking hours, weekends, and regional payment cutoffs.
Programmable flows
Create, monitor, notify, and reconcile payments through APIs and webhooks.
USD-denominated value
Stablecoin pricing is easier for merchants than volatile crypto checkout experiences.
Multi-chain reality
Stablecoins are multi-chain. Merchant payments should be too.
Your customers may use USDC on Base, USDT on Tron, or stablecoins on Ethereum, Polygon, Solana, and more. PayIn gives merchants one payment layer across supported stablecoins and networks.
Stablecoins
UUSDCUUSDTPPYUSDDDAI
Networks
EEthereumPPolygonSSolanaBBaseAArbitrumBBNB ChainTTronOOptimism
Public pages should show supported and planned networks honestly. The message is not “we list many logos”; it is “PayIn unifies multi-chain stablecoin payments into merchant operations.”
Merchant payment layer
PayIn turns stablecoins into payment operations.
Build order payments, deposit flows, payment pages, blockchain monitoring, webhook delivery, reconciliation, and production controls on top of multi-chain stablecoin settlement.
Non-custodial by design
PayIn coordinates payments while merchants keep custody control.
PayIn is built as payment infrastructure, not a wallet or exchange. It helps merchants create payment requests, monitor supported blockchains, send webhooks, and reconcile records while funds settle to merchant-controlled addresses or merchant-defined destinations.
Merchant-controlled funds
Payment flows settle to merchant-controlled destinations under the non-custodial PayIn model.
Operational visibility
PayIn tracks payment state, confirmation, webhook delivery, and reconciliation as the payment operations layer.
Trust through architecture
Non-custodial design reduces platform custody risk and fits merchants who care about control, auditability, and resilience.
Dual-mode payments
Order Mode + Deposit Mode in one system.
Most crypto payment tools stop at checkout. PayIn is built around the two ways merchants actually receive money: orders and deposits.
Order Mode
Checkout, invoices, and payment links.
A customer pays a specific order. PayIn creates the payment request, shows instructions, monitors the transaction, and notifies your system.
Create order Show payment page Detect payment Send webhook Fulfill order
Deposit Mode
Account funding and assigned addresses.
A user or account receives funds through an assigned address. PayIn monitors deposits, confirms transactions, and helps your system credit balances.
Assign address Monitor deposits Confirm transaction Notify system Credit account
Cloud and Open
Choose your operating model.
PayIn Cloud and PayIn Open share the same merchant-first payment philosophy. The difference is who operates the infrastructure.
Hosted
PayIn Cloud
Hosted stablecoin payments for online merchants. PayIn operates the payment infrastructure; your team integrates API keys, hosted payment pages, webhooks, and reconciliation.
Fastest path to launch Sandbox to production onboarding Payment pages, webhooks, and merchant operations
Open-source
PayIn Open
A complete open-source stablecoin payment stack merchants can self-host. Keep control of infrastructure while using PayIn’s order, deposit, webhook, and operations model.
Self-hosted payment gateway Transparent and auditable infrastructure AI-agent-friendly deployment skill
In-person
PayIn Go lives at go.payin.com.
PayIn Go is the face-to-face product for in-person merchants. The marketing site introduces it, but the app remains owned and deployed by the PayIn Go repository.
Open infrastructure
Open infrastructure for stablecoin payments.
PayIn Open gives merchants and developers a transparent, self-hostable payment gateway for stablecoin orders, deposits, webhooks, monitoring, and operations. PayIn Cloud is available when merchants want PayIn to operate the infrastructure for them.
Source you can inspect
A practical open-source stack for teams that need transparency, portability, and control.
Agent-ready deployment
PayIn Open includes structured skill instructions so an AI agent can help deploy sandbox, configure providers, and test webhooks safely.
Cloud when you want speed
Use PayIn Cloud when you want PayIn to operate the service layer for the same stablecoin payment model.
Start here
Stablecoin payments your team can actually operate.
Start with PayIn Cloud if you want hosted infrastructure. Start with PayIn Open if you want self-hosted control. Use PayIn Go when accepting payments face to face.