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tRPC

End-to-end typesafe APIs made easy

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Server/client example
The client doesn't import any code from the server, only a single TypeScript type. The import type declaration is fully erased at runtime. tRPC transforms this type into a fully typesafe client.

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🧙‍♂️  Automatic typesafety

Automatic typesafety & autocompletion inferred from your API-paths, their input data, & outputs.

🍃  Light & Snappy DX

No code generation, run-time bloat, or build pipeline. Zero dependencies & a tiny client-side footprint.

🐻  Add to existing brownfield project

Easy to add to your existing brownfield project with adapters for Connect/Express/Next.js.

  1. @trpc/client depends on some babel runtime helpers + that a fetch() polyfill/ponyfill is used if the browser doesn't support it. @trpc/react is built on top of react-query.