API Design Principles

About

This skill empowers Claude to design high-quality APIs by providing deep expertise in both RESTful architectures and GraphQL schemas. It covers resource-oriented modeling, proper HTTP method usage, versioning strategies, and advanced patterns like HATEOAS and DataLoaders for N+1 prevention. Whether you are building a new backend from scratch, refactoring legacy endpoints for better developer experience, or establishing team-wide API standards, this skill ensures your interfaces are consistent, performant, and maintainable.

Key Features

• Schema-first GraphQL design with Relay-style pagination
• Advanced data fetching patterns including HATEOAS and DataLoaders
• 2 GitHub stars
• Standardized error handling and HTTP status code mapping
• Comprehensive API versioning and documentation strategies
• Resource-oriented RESTful API modeling and naming

Use Cases

• Designing a new RESTful backend using modern frameworks like FastAPI
• Reviewing API specifications to ensure consistency and developer friendliness
• Migrating existing legacy endpoints to a type-safe GraphQL schema