APIfulA Fetch Client You Compose

Extensions decide the call signature and the types

Extensible API Client

Unified createClient interface foundation to build custom API clients.

Get Started

Includes an ofetch adapter, OpenAPI support, and API router extension.

Explore Extensions

Add methods to your API client with full type safety.

Create Extensions

Keep TypeScript definitions 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 Clients for Nitro

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

Import Utilities

Enjoy full TypeScript support with robust type inference.

Reference