Infrastructure

Zod

TypeScript-first schema validation. Define schemas once, get static types and runtime validation. The default validator for tRPC, Next.js server actions, and AI SDKs.

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Zod is the schema validation library that TypeScript needed. You write a schema with a chainable API and get both runtime validation and a static type out of it. It pairs naturally with form libraries (React Hook Form), API layers (tRPC, hono), and AI tool calling (Vercel AI SDK and OpenAI Agents SDK both accept Zod schemas). v4 brought tree-shakeable imports and faster parsing. If you write TypeScript on the server in 2026, you almost certainly use Zod.

validation typescript schema runtime

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TypeScript-first schema validation. Define schemas once, get static types and runtime validation. The default validator for tRPC, Next.js server actions, and AI SDKs.

Try Zod

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