# WebAssembly System Interface Preview 2

**Canonical:** https://apis.io/apis/component-model/wasi-preview-2/  
**Provider:** Component Model — https://apis.io/providers/component-model/  
**Base URL:** https://wasi.dev  
**Documentation:** https://wasi.dev/

WebAssembly System Interface Preview 2 is one of 4 APIs that [Component Model](https://apis.io/providers/component-model/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include System Interface, WASI, and Capabilities. The published artifact set on APIs.io includes API documentation and an API reference.

WASI Preview 2 is the first WASI release built on the Component Model. It defines a set of interfaces such as wasi:filesystem, wasi:io, wasi:http, wasi:cli, and wasi:sockets that components can import to interact with the host system in a portable, capability-based way.

## Machine-readable artifacts (4)

- **Documentation** — https://wasi.dev/
- **GitHubOrganization** — https://github.com/WebAssembly/WASI
- **Reference** — https://github.com/WebAssembly/wasi-http
- **Reference** — https://github.com/WebAssembly/wasi-filesystem

## Other Component Model APIs (3)

- [WebAssembly Component Model Specification](https://apis.io/apis/component-model/specification/)
- [WebAssembly Interface Type (WIT)](https://apis.io/apis/component-model/wit/)
- [Component Model Implementations](https://apis.io/apis/component-model/bytecode-alliance-implementations/)

## Tags

System Interface, WASI, Capabilities

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/component-model/wasi-preview-2/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/component-model/.