# Storybook

**Canonical:** https://apis.io/providers/storybook/  
**Website:** https://storybook.js.org/  
**APIs profiled:** 2

Storybook is the industry-standard frontend workshop for building, documenting, and testing UI components in isolation. It supports React, Vue, Angular, Svelte, Web Components, and a dozen other frameworks. Developers write stories capturing component states, use addons for interaction testing, accessibility auditing, visual testing, and design integration, and publish component documentation for design systems and component libraries. Storybook 10+ includes an MCP server enabling AI agents to understand components, generate stories, and run tests. The project is open source (MIT) and maintained by the storybookjs GitHub organization.

## Kin Score — 20.0 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 20.0).

| Facet | Score |
|---|---|
| Discoverability | 59.3 |
| Contract Quality | 10.7 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 28.9 |
| Developer Ergonomics | 16.7 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## 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

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (2)

- **Storybook** — Storybook is an open-source frontend workshop for building UI components and pages in isolation. Supports React, Vue, Angular, Svelte, Web Components, Ember, Preact, and more. C...
- **Storybook MCP Server** — The Storybook MCP (Model Context Protocol) server enables AI agents to interact with a running Storybook instance. Available as the @storybook/addon-mcp addon (runs within the d...

## Security (1)

- **Storybook Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Storybook Plans Pricing**

## Tags

Accessibility Testing, Component Documentation, Component Testing, Design Systems, Front-End Development, Open-Source, React, UI Components, Visual Testing

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