W3C · Open Collection

W3C API

Requests

Folders

1.0.0

Version

View on GitHub Raw JSON AccessibilityStandardsWebWeb StandardsOpen Collection

Overview

W3C API is a Open Collection published by W3C on the APIs.io network, version 1.0.0.

The collection contains 9 requests organised into 5 folders.

Tagged areas include Accessibility, Standards, Web, and Web Standards.

Requests & Folders

Specifications

Groups

Ecosystems

Translations

Affiliations

Related API Specs

W3C Affiliations API (OpenAPI) W3C Ecosystems API (OpenAPI) W3C Groups API (OpenAPI) W3C Specifications API (OpenAPI) W3C Translations API (OpenAPI)

Back to W3C · All Collections · GitHub

Work with this as data

Every collection here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for collections

4 MCP tools reach this

find_collectionsBrowse and filter every collection in the catalog.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This collection

curl "https://apis.io/api/v1/collections/open-w3c"

All collections

curl "https://apis.io/api/v1/collections?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.