tRPC

Health v2 · maintenance only

Adoption not part of the score

40548 stars · 1653 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

tRPC is a TypeScript library for building and consuming fully typesafe APIs without schemas or code generation, leveraging TypeScript type inference to share API contracts between client and server. It ships adapters for React, Next.js, Express, Fastify, and more, with features like subscriptions, request batching, and middleware.

Use cases

• build end-to-end typesafe APIs in a full-stack TypeScript app
• share API types between client and server without code generation
• replace GraphQL or REST with a typesafe RPC layer
• add typesafe data fetching to a Next.js app
• add real-time subscriptions with type safety
• batch multiple API requests into one
• add an API layer to an existing brownfield TypeScript project

When to choose

• your whole stack is TypeScript and you want API contracts checked at build time
• you want a lightweight alternative to GraphQL with no codegen or build step
• you use React/Next.js and want integrated typed data-fetching hooks
• you want subscriptions and request batching out of the box

When to avoid

• your clients are not written in TypeScript (e.g. mobile or third-party consumers) unless you add an OpenAPI layer
• you need a language-agnostic API contract for polyglot teams
• your project cannot use strict TypeScript mode or the required TypeScript version

Facets

library · maturity stable

api-framework rpc http-server http-client middleware websocket type-system web-development backend frontend apis developer-tools browser cross-platform end-to-end-typesafety full-stack-typescript no-codegen react nextjs request-batching subscriptions alternative-to-graphql typescript nodejs web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="trpc/trpc")