About
The PayPal Integration skill equips Claude with specialized knowledge for implementing comprehensive payment solutions using the PayPal ecosystem. It covers everything from client-side Smart Payment Buttons and server-side REST API implementations to advanced features like subscription management, Instant Payment Notifications (IPN) for asynchronous events, and secure refund processing. This skill is essential for developers building e-commerce platforms, SaaS products with recurring billing, or any application requiring secure, international transaction handling with production-grade error handling and verification.