Development Guidelines
Last updated: Aug 15th, 7:34am
| Guideline | Description | 
|---|---|
| PSD2 compliance | PSD2 gives providers a regulated, open market to compete in, while providing customers more payment options and increased security. | 
| Browser support | Lists browsers and browser features that provide the best payment experience with the JavaScript SDK. | 
| Idempotency | Learn how to make idempotent calls any number of times without concern that the server creates or completes an action on a resource more than once. | 
| Security guidelines | Security related guidelines and best practices for both development projects and system integrations. | 
| Development policies | Policies, guidelines, and best practices that you should follow when you create applications that make calls to PayPal API operations. | 
| Rate limiting | Learn about how PayPal handles rate limiting. |