# API Usage

Efficiently interact with the XRP Ledger API by following these best practices for querying data, handling large datasets, and optimizing your application's performance.

When building applications that integrate with the XRP Ledger, proper API usage ensures reliability, efficiency, and scalability.

The following code samples cover essential techniques for working with API responses, including:

* [Markers and Pagination](/ja/docs/references/http-websocket-apis/api-conventions/markers-and-pagination): Handle large datasets that span multiple responses by properly using markers to iterate through results without missing data or overloading your application.
* Data Normalization: Convert XRP Ledger data formats into human-readable formats, such as transforming currency codes from hexadecimal to standard representations.
* [Rate Limiting](/ja/docs/references/http-websocket-apis/api-conventions/rate-limiting): Understand and work within API rate limits to maintain consistent access and avoid service interruptions.
* [Error Handling](/ja/docs/references/http-websocket-apis/api-conventions/error-formatting): Implement robust error handling strategies to gracefully manage network issues, invalid requests, and unexpected responses.


These practices help you build more resilient applications while minimizing unnecessary load on XRP Ledger servers.