Your API architecture affects developer velocity, type safety, and maintainability. In 2026, three approaches dominate TypeScript full-stack development.
Quick Overview
REST: HTTP methods (GET, POST, PUT, DELETE) on resource URLs. The web standard.
GraphQL: A query language. Clients request exactly the data they need from a single endpoint.
tRPC: TypeScript Remote Procedure Call. End-to-end type safety between client and server with zero code generation.
Feature Comparison
| Factor | REST | GraphQL | tRPC |
|---|---|---|---|
| Type safety | Manual (OpenAPI + codegen) | Schema + codegen | Automatic (shared types) |
| Code generation | Required for types | Required | None needed |
| Over-fetching | Common | Solved | Solved |
| Under-fetching | Common | Solved | Depends on design |
| Caching | HTTP caching (simple) | Complex (normalized cache) | React Query built-in |
| Learning curve | Low | Medium-high | Low (if you know TypeScript) |
| Language agnostic | Yes | Yes | TypeScript only |
| Mobile clients | Yes | Yes | Not practical |
| Third-party consumers | Yes | Yes | No |
| Request batching | Manual | Built-in | Built-in |
| File uploads | Native | Complex | Possible |
| Real-time | WebSockets (separate) | Subscriptions | Subscriptions |
| Tooling | Postman, curl, etc. | GraphiQL, Apollo Studio | TypeScript IDE |
| Bundle size impact | Minimal | Apollo Client (~40KB) | Minimal |
When REST Wins
- Public APIs consumed by third parties
- Simple CRUD applications
- Multi-language client environments
- Mobile + web sharing an API
- Caching-heavy applications (HTTP caching)
- Team unfamiliar with GraphQL or tRPC
When GraphQL Wins
- Complex data requirements (deeply nested, relational)
- Multiple client types needing different data shapes
- Rapid frontend iteration (no backend changes for new queries)
- Large organizations with many API consumers
- Mobile apps on limited bandwidth (request only needed fields)
When tRPC Wins
- TypeScript monorepos (same codebase for client and server)
- Full-stack Next.js applications
- Small-to-medium teams wanting maximum type safety
- Internal tools and dashboards
- Rapid prototyping (zero API boilerplate)
- Solo developers managing both frontend and backend
Our Recommendation
For full-stack TypeScript projects where we control both client and server, we use tRPC or Next.js Server Actions. The developer experience of automatic type safety across the stack eliminates an entire category of bugs. For projects needing third-party API consumers, we build REST with OpenAPI documentation.
Let us build your API with the right architecture for your needs.