APIfulA Fetch Client You Compose

Extensions decide the call signature and the types

Extensible API Client

Start from default fetch options and add the call signature and methods you need.

Get Started

Ships the ofetch, OpenAPI, and API router extensions.

Explore Extensions

Add methods to your API client with full type safety.

Custom Extensions

Keep the generated types up to date with the CLI.

CLI Reference

Runtime-free types instead of runtime-generated code.

OpenAPI Integration

Create typed clients for Nitro servers. Designed on top of ofetch.

Typed Client for Nitro Servers

Framework-agnostic HTTP status codes and phrases for your server code.

Import Utilities

Each extension types the client that carries it, without generated client code.

Reference