Storybook

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.

Storybook publishes 2 APIs on the APIs.io network. Tagged areas include Accessibility Testing, Component Documentation, Component Testing, Design Systems, and Front-End Development.

The Storybook catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Storybook’s developer surface includes documentation, engineering blog, release notes, YouTube channel, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

20.0/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemium

2 APIs

Accessibility TestingComponent DocumentationComponent TestingDesign Systems Front-End Development Open-Source React UI Components Visual Testing

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 20.0/100 · emerging

Contract Quality 2.7 / 25

Developer Ergonomics 3.3 / 20

Access Clarity 3.2 / 20

Operational Transparency 3.8 / 13

Contract Governance 1.2 / 12

Discoverability 5.9 / 10

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/storybook: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Storybook Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Examples 2

Example request and response payloads for these APIs.

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

NPM

NPM

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 2

Tutorials, courses, talks, and written guidance

Tutorials

Tutorials

YouTube

YouTube

Operate 2

Status, limits, changes, and where to get help

ReleaseNotes

ReleaseNotes

Discord

Discord

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: storybook
name: Storybook
description: 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.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/storybook.png
tags:
- Accessibility Testing
- Component Documentation
- Component Testing
- Design Systems
- Front-End Development
- Open-Source
- React
- UI Components
- Visual Testing
tags_raw:
- Accessibility Testing
- Component Documentation
- Component Testing
- Design Systems
- Frontend Development
- Open Source
- React
- UI Components
- Visual Testing
created: '2025-01-08'
modified: '2026-05-02'
url: https://raw.githubusercontent.com/api-evangelist/storybook/refs/heads/main/apis.yml
specificationVersion: '0.23'
apis:
- aid: storybook:storybook
  name: Storybook
  description: 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. Core features include component story format (CSF), interactive
    controls, documentation generation, interaction testing, accessibility testing, and visual snapshot testing. Published
    component libraries serve as living design system documentation for engineering and design teams.
  humanURL: https://storybook.js.org/
  tags:
  - Accessibility Testing
  - Component Documentation
  - Component Testing
  - Design Systems
  - Front-End Development
  - Open-Source
  - UI Components
  - Visual Testing
  tags_raw:
  - Accessibility Testing
  - Component Documentation
  - Component Testing
  - Design Systems
  - Frontend Development
  - Open Source
  - UI Components
  - Visual Testing
  properties:
  - type: Documentation
    url: https://storybook.js.org/docs
  - type: Website
    url: https://storybook.js.org/
  - type: GitHubRepository
    url: https://github.com/storybookjs/storybook
  - type: NPM
    url: https://www.npmjs.com/package/storybook
  - type: ChangeLog
    url: https://github.com/storybookjs/storybook/blob/next/CHANGELOG.md
  - type: Tutorials
    url: https://storybook.js.org/tutorials/
  - type: Integrations
    url: https://storybook.js.org/integrations/
- aid: storybook:storybook-mcp
  name: Storybook MCP Server
  description: 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 dev server at /mcp) and @storybook/mcp standalone library.
    Exposes tools for listing documentation, accessing component metadata, previewing stories, and running component tests.
    Supports React projects in Storybook 10.3+.
  humanURL: https://storybook.js.org/docs/ai/mcp/overview
  tags:
  - Artificial Intelligence
  - Component Testing
  - MCP
  - Open-Source
  - React
  tags_raw:
  - AI
  - Component Testing
  - MCP
  - Model Context Protocol
  - Open Source
  - React
  properties:
  - type: Documentation
    url: https://storybook.js.org/docs/ai/mcp/overview
  - type: GitHubRepository
    url: https://github.com/storybookjs/mcp
  - type: NPM
    url: https://www.npmjs.com/package/@storybook/addon-mcp
  - type: Blog
    url: https://storybook.js.org/blog/storybook-mcp-for-react/
common:
- type: License
  name: MIT
  url: https://github.com/storybookjs/storybook/blob/next/LICENSE
- type: DomainSecurity
  url: security/storybook-domain-security.yml
- type: Website
  url: https://storybook.js.org/
- type: Documentation
  url: https://storybook.js.org/docs
- type: Blog
  url: https://storybook.js.org/blog
- type: Tutorials
  url: https://storybook.js.org/tutorials/
- type: Integrations
  url: https://storybook.js.org/integrations/
- type: ReleaseNotes
  url: https://storybook.js.org/releases
- type: GitHubOrg
  url: https://github.com/storybookjs
- type: NPM
  url: https://www.npmjs.com/package/storybook
- type: X
  url: https://x.com/storybookjs
- type: Discord
  url: https://discord.gg/storybook
- type: YouTube
  url: https://www.youtube.com/@chromaticui
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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Storybook

Kin Score

APIs 2

Storybook

Storybook MCP Server

Pricing Plans 1

Storybook Plans Pricing

Rate Limits 1

Storybook Rate Limits

FinOps 1

Storybook Finops

Semantic Vocabularies 1

Storybook Context

Spectral Rules 1

Storybook API Rules

JSON Schema 2

Storybook Component Meta (CSF Default Export)

Storybook Story (CSF)

JSON Structure 1

Storybook Csf Structure

Examples 2

Storybook Button Story Example

Storybook Mcp List Documentation Example

Security Posture 1

Storybook Domain Security

Resources

Documentation 1

Build 2

Access & Security 1

Learn 2

Operate 2

Commercial 1

Company 2

Other 1

Source (apis.yml)

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