Introduction

PayKit lets you integrate Stripe, Paystack, Polar, PayPal, and more without rewriting your app logic when you switch providers.

What you get

Unified API for checkouts, customers, subscriptions, payments, refunds, and invoices
Per-provider typed provider_metadata for provider-specific features
Fully typed raw webhook events per provider
React hooks and a UI kit for client apps
Drop-in shadcn registry blocks

Adapter	Package
MedusaJS	`@paykit-sdk/medusajs`