# StackBlitz

**Canonical:** https://apis.io/providers/stackblitz/  
**Website:** https://stackblitz.com  
**APIs profiled:** 2

StackBlitz is an online development environment that runs Node.js applications entirely in the browser using WebContainers, a WebAssembly-based operating system that boots Node.js in milliseconds without a remote server. It serves developers, technical writers, and platform teams who need interactive coding environments, documentation playgrounds, or embedded IDE experiences. The platform provides a JavaScript SDK for programmatically creating and embedding projects, and a WebContainer API for booting full Node.js runtimes directly inside web applications. StackBlitz also offers Codeflow, a one-click GitHub integration for pull request review and issue fixing workflows.

## Kin Score — 26.1 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 26.1).

| Facet | Score |
|---|---|
| Discoverability | 59.3 |
| Contract Quality | 10.7 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 39.5 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

## Agent readiness — 2.5 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Paid — onboarding: unknown, pricing: paid, trial: no (confidence: medium).

## APIs (2)

- **StackBlitz JavaScript SDK** — A lightweight (3kB gzipped) JavaScript SDK that lets developers programmatically create, open, and embed StackBlitz projects in web pages, documentation sites, or blog posts. Pr...
- **WebContainer API** — 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 bo...

## Security (1)

- **Stackblitz Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Stackblitz Plans Pricing**

## Tags

Developer Tools, WebAssembly, Node.js, IDE, Browser Runtime, Code Environments

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/stackblitz/). Scores are computed from the provider's own public artifacts under a published rubric.