tRPC

Build type-safe APIs with end-to-end TypeScript inference in Next.js projects.

17|4|Updated Oct 21, 2025

Search Tags:#typescript #api #middleware #router #nextjs #trpc #typesafety

Ready to run

npx skills add https://github.com/oriolrius/pki-manager-web --skill trpc-oriolrius

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: tRPC
Source: https://github.com/oriolrius/pki-manager-web/tree/main/.claude/skills/trpc
Command: npx skills add https://github.com/oriolrius/pki-manager-web --skill trpc-oriolrius

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

tRPC enables building fully type-safe APIs without code generation, letting TypeScript types flow from server to client.

Core Features & Use Cases

End-to-end type inference: TypeScript types flow from server to client without codegen.
No code generation needed: Develop APIs without scaffolding steps.
Next.js integration: Smooth integration with Next.js app router and API routes.
Middleware & context: Shared auth and utilities via middleware and context.

Quick Start

Create a type-safe tRPC router and client in a Next.js app.

Frequently Asked Questions about tRPC

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I build type-safe APIs without code generation?▼

Setting up a tRPC router enables TypeScript types to flow automatically from server to client. By defining procedures, middleware, and context server-side, your React client receives full type inference without requiring code generation steps.

How does tRPC integrate with Next.js app router and API routes?▼

tRPC integrates with Next.js by applying your router to API routes and consuming procedures within the app router. This connection enables smooth end-to-end TypeScript inference between Next.js server and client components without manual schema definitions.

Can I share authentication and utilities using middleware and context in tRPC?▼

tRPC enables sharing authentication and utilities by defining context and applying middleware. Context passes shared server-side data into procedures, while middleware intercepts requests for auth checks, maintaining full type safety across the API lifecycle.

What is the best way to achieve end-to-end type inference between server and client?▼

tRPC provides end-to-end type inference by letting TypeScript types flow from server routers directly to client functions. Defining procedures server-side automatically infers input and output types on the client without schema codegen or synchronization.

Do I need schemas or scaffolding to maintain TypeScript type safety in APIs?▼

No, you do not need schemas or scaffolding steps. tRPC enables fully type-safe APIs without code generation by inferring TypeScript types directly from your server router and procedures, ensuring client integration remains type-safe automatically.