The Complete Guide to API Design in 2026: REST, GraphQL, and tRPC in Production

The API design landscape in 2026 settled into three clear patterns. REST for public APIs and microservices. GraphQL for complex data requirements. tRPC for TypeScript-to-TypeScript full-stack applications.

Each has a legitimate use case. The mistakes happen when teams choose based on hype rather than fit.

REST in 2026: Still the Default for a Reason

REST APIs remain the dominant pattern for: