# Payments

> Use for payment integration (Stripe, PayPal), checkout flows, subscription management, webhook handling, billing automation, dunning, and PCI DSS compliance.

- Skill: `henryhawke/payments` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add henryhawke/payments`
- Raw SKILL.md: https://api.skillmd.com/api/skills/henryhawke/payments/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: henryhawke (https://skillmd.com/u/henryhawke)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/henryhawke/payments

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# Payment Processing

## When to use
- Integrate Stripe or PayPal payments
- Build checkout flows and subscription billing
- Handle webhooks and payment events
- Implement PCI-compliant payment handling
- Set up automated billing and dunning

## Stripe
- Checkout Sessions and Payment Intents
- Subscription lifecycle management
- Webhook signature verification
- Connect for marketplace payments
- Stripe Elements for custom UIs

## Billing
- Recurring payment automation
- Invoice generation
- Proration and plan changes
- Dunning and retry logic
- Revenue recognition

## Security
- PCI DSS compliance
- Tokenization
- 3D Secure authentication
- Fraud detection