Handles the full PayPal integration stack from basic checkout buttons to subscription billing and IPN webhooks. You get working examples for both the JavaScript SDK frontend flow and server-side REST API calls in Python, including OAuth token management, order creation and capture, and proper IPN verification. The webhook handling is solid with duplicate transaction checks and status-specific processing for refunds and chargebacks. Use this when you need to wire up PayPal payments quickly without digging through their sprawling documentation. The code snippets are production-ready enough to adapt directly, though you'll want to add your own error handling and logging around the payment capture flows.
npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill paypal-integration