Zod

Zod is a TypeScript-first schema declaration and validation library that enforces runtime constraints while preserving static types, helping catch input and payload issues before they reach business logic.

At ProcureAI, we pair Zod with TypeScript and GraphQL Codegen to validate API inputs and responses end-to-end — covering backend handlers and frontend consumers. In frontend applications we validate all user input at the edge so contract mismatches surface early and user-facing microservices stay resilient.