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T3 Stack · Concept

Procedure

tRPC lets a TypeScript frontend call backend procedures with inferred types and autocomplete. It groups procedures into routers and validates inputs without generated API code.

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Syntax

createTRPCRouter({ procedureName: publicProcedure.input(schema).query(({ ctx, input }) => result) })

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  • Zod
  • NextAuth.js
  • React Query
  • Prisma
  • superjson
  • httpBatchLink
  • protectedProcedure

Source: tRPC • Create T3 App. Checked 2026-11-03.