Services›W3C (World Wide Web Consortium)

W3C (World Wide Web Consortium)

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International standards organization developing open web standards including HTML, CSS, JavaScript APIs, SVG, WebAssembly, and accessibility guidelines (WCAG). Produces 450+ web standards and technical reports used by all web browsers and developers.

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This /ai spec was auto-generated by an AI agent, not by the site owner. It may be incomplete or inaccurate.

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GET/api/v1/specifications/search

Search W3C technical specifications and standards

Parameters

qstandard name or technology (stringrequired

groupstringoptional

statusrecommendation|working-draft|candidate-recommendation (stringoptional

Returns

specs[] with shortname, title, status, date, groups[], url

GET/api/v1/specifications/{shortname}

Get details of a W3C specification

Parameters

shortnamee.g. htmlrequired— css, wai-aria (string

Returns

spec{shortname, title, status, published, editors[], groups[], abstract, url}

POST/Nu/

Validate HTML or CSS markup

Parameters

docURL to validate (stringoptional

outjson|html|text (stringoptional

Returns

messages[] with type, subType, message, extract, line, col