# WebContainer API

**Canonical:** https://apis.io/apis/stackblitz/webcontainer-api/  
**Provider:** StackBlitz — https://apis.io/providers/stackblitz/  
**Base URL:** https://webcontainers.io  
**Documentation:** https://webcontainers.io/api

WebContainer API is one of 2 APIs that [StackBlitz](https://apis.io/providers/stackblitz/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include WebContainers, Node.js, Browser Runtime, and WebAssembly. The published artifact set on APIs.io includes API documentation and a getting-started guide.

A browser-based runtime API that executes Node.js applications and operating system commands directly inside a browser tab using WebAssembly. Provides classes and methods for booting a container instance, mounting file systems, spawning processes, managing files, and handling OAuth authentication. Supports npm, pnpm, and yarn natively and emits events for port bindings and server-ready states. Commercial use in production for-profit applications requires a license.

## Machine-readable artifacts (2)

- **Documentation** — https://webcontainers.io/api
- **GettingStarted** — https://webcontainers.io/guides/quickstart

## Other StackBlitz APIs (1)

- [StackBlitz JavaScript SDK](https://apis.io/apis/stackblitz/javascript-sdk/)

## Tags

WebContainers, Node.js, Browser Runtime, WebAssembly

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