Integrate payments with SePay (VietQR), Polar, Stripe, Paddle (MoR subscriptions), Creem.io (licensing). Checkout, webhooks, subscriptions, QR codes, multi-provider orders.
Production-proven payment processing with SePay (Vietnamese banks), Polar (global SaaS), Stripe, Paddle (MoR), and Creem.io (licensing).
| Platform | Best For |
|---|---|
| SePay | Vietnamese market, VND, bank transfers, VietQR |
| Polar | Global SaaS, subscriptions, GitHub/Discord benefits |
| Stripe | Enterprise payments, Connect platforms |
| Paddle | MoR subscriptions, global tax compliance |
| Creem.io |
| MoR + licensing, revenue splits, no-code checkout |
auth → products → checkout → webhooks → handle events
// SePay verification
node .agent/skills/payment-integration/scripts/sepay-webhook-verify.js
// Polar verification
node .agent/skills/payment-integration/scripts/polar-webhook-verify.js
references/sepay/overview.md — Auth, supported banksreferences/sepay/api.md — Endpoints, transactionsreferences/sepay/webhooks.md — Setup, verificationreferences/sepay/qr-codes.md — VietQR generationreferences/sepay/best-practices.md — Production patternsreferences/polar/overview.md — Auth, MoR conceptreferences/polar/checkouts.md — Checkout flowsreferences/polar/subscriptions.md — Lifecycle managementreferences/polar/webhooks.md — Event handlingreferences/polar/benefits.md — Automated deliveryreferences/stripe/stripe-best-practices.md — Integration designreferences/stripe/stripe-js.md — Payment Elementreferences/stripe/stripe-cli.md — Local testingreferences/paddle/overview.md — MoR, auth, entity IDsreferences/paddle/subscriptions.md — Trials, upgrades, pausereferences/paddle/webhooks.md — SHA256 verificationreferences/creem/overview.md — MoR, auth, global supportreferences/creem/licensing.md — Device activationreferences/creem/webhooks.md — Signature verification