> For the complete documentation index, see [llms.txt](https://openai.gitbook.io/code-cheatsheets/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://openai.gitbook.io/code-cheatsheets/js/packages/trpc.md).

# Trpc

Typesafe Remote Procedure Call, Better APIs

* define a server-side router for your procedures, then export inferred type, then import type client side
* Type errors with your API contracts will be caught at build time
* Arguably server actions and ssc in Next.js solve most of these problems

## Usage

```ts
// HTTP/REST
const res = await fetch('/api/users/1');
const user = await res.json();
// RPC
const user = await api.users.getById({ id: 1 });
```