Payment Integration

Handles checkout flows, webhooks, and subscriptions across five payment providers: SePay for Vietnamese VietQR and bank transfers, Polar for SaaS with automated GitHub/Discord benefits, Stripe for enterprise infrastructure, Paddle for merchant-of-record subscriptions with tax compliance, and Creem.io for licensing with device activation. Includes webhook verification scripts, multi-provider order management patterns, and production-tested integration guides for each platform. The breadth is the point here. If you're building something that needs to accept payments in Vietnam and globally, or you're juggling multiple providers for different markets or product types, this consolidates the setup patterns and gotchas in one place instead of stitching together five separate doc sites.

Install to Claude Code

npx -y skills add unclecatvn/agent-skills --skill payment-integration --agent claude-code