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W3C

The World Wide Web Consortium (W3C) is the main international standards body for the World Wide Web, founded by Tim Berners-Lee in 1994. W3C develops web standards and guidelines to ensure the long-term growth of the Web, focusing on accessibility, internationalization, privacy, and security. W3C specifications include HTML, CSS, XML, SVG, WebAssembly, ARIA, WCAG, JSON-LD, Verifiable Credentials, and hundreds of other foundational web technologies. W3C operates through Working Groups, Interest Groups, and Community Groups that develop specifications through a consensus-based process, resulting in W3C Recommendations.

10 APIs 0 Features
AccessibilityStandardsWebWeb Standards

APIs

W3C API

The W3C API provides programmatic access to W3C data including specifications, working groups, editors, translations, and affiliations. It enables developers to query W3C's cata...

Web Content Accessibility Guidelines (WCAG)

WCAG is the international standard for web accessibility, providing guidelines for making web content more accessible to people with disabilities. WCAG 2.2 is the current Recomm...

HTML Living Standard

The HyperText Markup Language specification maintained by WHATWG as a living standard, published as a W3C Recommendation. HTML defines the semantic structure of web pages and fo...

CSS Specifications

The Cascading Style Sheets (CSS) specification family maintained by the W3C CSS Working Group. CSS defines the presentation and styling of HTML documents. Key modules include CS...

JSON-LD

JSON-LD (JSON for Linking Data) is a W3C Recommendation for encoding linked data using JSON. It provides a way to add semantic meaning to JSON documents through the use of @cont...

Verifiable Credentials

The Verifiable Credentials Data Model is a W3C Recommendation enabling cryptographically secure, privacy-respecting digital credentials. The VC family includes the data model, d...

WebAssembly

WebAssembly (Wasm) is a W3C Recommendation defining a portable binary instruction format for a stack-based virtual machine. It enables near-native performance in web browsers fo...

WAI-ARIA

Accessible Rich Internet Applications (WAI-ARIA) is a W3C Recommendation defining a set of HTML attributes that define ways to make web content and web applications more accessi...

RDF and SPARQL

The Resource Description Framework (RDF) is a W3C standard for representing information in the web. RDF 1.2 and SPARQL 1.2 are the latest versions, providing the foundation for ...

Digital Credentials API

The W3C Digital Credentials API provides browser support for mediating presentation and issuance of digital credentials such as digital identity documents. It enables web applic...

Collections

W3C API

OPEN

Pricing Plans

W3C Plans Pricing

3 plans

PLANS

Rate Limits

W3C Rate Limits

5 limits

RATE LIMITS

FinOps

W3C Finops

FINOPS

Semantic Vocabularies

W3C Context

0 classes · 19 properties

JSON-LD

API Governance Rules

W3C API Rules

7 rules · 3 warnings 4 info

SPECTRAL

JSON Structure

W3C Specification Structure

0 properties

JSON STRUCTURE

Resources

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Website
Website
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TechnicalReports
TechnicalReports
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API
API
👥
GitHubOrg
GitHubOrg
📰
News
News
📰
Blog
Blog
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Events
Events
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Donations
Donations
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Mastodon
Mastodon
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LinkedIn
LinkedIn
👥
YouTube
YouTube
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Sponsorship
Sponsorship
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Vocabulary
Vocabulary
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JSONLDContext
JSONLDContext
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SpectralRules
SpectralRules

Sources

Raw ↑ 
opencollection: 1.0.0
info:
  name: W3C API
  version: 1.0.0
items:
- info:
    name: Specifications
    type: folder
  items:
  - info:
      name: List specifications
      type: http
    http:
      method: GET
      url: https://api.w3.org/specifications
      params:
      - name: page
        value: ''
        type: query
        description: Page number (default 1).
      - name: items
        value: ''
        type: query
        description: Page size (default 100, max 1000).
      - name: embed
        value: ''
        type: query
        description: Embed related resources on supported routes.
    docs: List specifications
  - info:
      name: Get a specification by shortname
      type: http
    http:
      method: GET
      url: https://api.w3.org/specifications/:shortname
      params:
      - name: shortname
        value: ''
        type: path
        description: W3C specification shortname (e.g. `html52`, `wcag22`).
    docs: Get a specification by shortname
  - info:
      name: List versions of a specification
      type: http
    http:
      method: GET
      url: https://api.w3.org/specifications/:shortname/versions
      params:
      - name: shortname
        value: ''
        type: path
        description: W3C specification shortname (e.g. `html52`, `wcag22`).
      - name: page
        value: ''
        type: query
        description: Page number (default 1).
      - name: items
        value: ''
        type: query
        description: Page size (default 100, max 1000).
    docs: List versions of a specification
- info:
    name: Groups
    type: folder
  items:
  - info:
      name: List groups
      type: http
    http:
      method: GET
      url: https://api.w3.org/groups
      params:
      - name: page
        value: ''
        type: query
        description: Page number (default 1).
      - name: items
        value: ''
        type: query
        description: Page size (default 100, max 1000).
      - name: embed
        value: ''
        type: query
        description: Embed related resources on supported routes.
    docs: List groups
  - info:
      name: Get a group by ID
      type: http
    http:
      method: GET
      url: https://api.w3.org/groups/:id
      params:
      - name: id
        value: ''
        type: path
    docs: Get a group by ID
- info:
    name: Ecosystems
    type: folder
  items:
  - info:
      name: List ecosystems
      type: http
    http:
      method: GET
      url: https://api.w3.org/ecosystems
      params:
      - name: page
        value: ''
        type: query
        description: Page number (default 1).
      - name: items
        value: ''
        type: query
        description: Page size (default 100, max 1000).
    docs: List ecosystems
- info:
    name: Translations
    type: folder
  items:
  - info:
      name: List translations
      type: http
    http:
      method: GET
      url: https://api.w3.org/translations
      params:
      - name: page
        value: ''
        type: query
        description: Page number (default 1).
      - name: items
        value: ''
        type: query
        description: Page size (default 100, max 1000).
    docs: List translations
- info:
    name: Affiliations
    type: folder
  items:
  - info:
      name: List affiliations
      type: http
    http:
      method: GET
      url: https://api.w3.org/affiliations
      params:
      - name: page
        value: ''
        type: query
        description: Page number (default 1).
      - name: items
        value: ''
        type: query
        description: Page size (default 100, max 1000).
    docs: List affiliations
  - info:
      name: Get an affiliation by ID
      type: http
    http:
      method: GET
      url: https://api.w3.org/affiliations/:id
      params:
      - name: id
        value: ''
        type: path
    docs: Get an affiliation by ID
bundled: true