How do I install W3c?

W3c is a remote plugin. You do not need to install anything locally. Add the server URL to your AI app's MCP configuration and you are ready to go.

Yes. W3c passed MCP Marketplace's automated security scan with a score of 10/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What AI apps work with W3c?

W3c uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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W3c MCP Server

by Pipeworx Io

Developer ToolsLow Risk10.0MCP RegistryRemote

Free

Server data from the Official MCP Registry

W3C MCP — web-standards lookup over w3c/browser-specs (GitHub, CF-reachable).

About

W3C MCP — web-standards lookup over w3c/browser-specs (GitHub, CF-reachable).

Remote endpoints: streamable-http: https://gateway.pipeworx.io/w3c/mcp

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (1 strong, 0 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. Trust signals: trusted author (1250/1263 approved). 1 finding(s) downgraded by scanner intelligence.

33 tools verified · Open access · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

How to Connect

Remote Plugin

No local installation needed. Your AI client connects to the remote endpoint directly.

Add this to your MCP configuration to connect:

{
  "mcpServers": {
    "io-github-pipeworx-io-w3c": {
      "url": "https://gateway.pipeworx.io/w3c/mcp"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

mcp-w3c

W3C MCP — web-standards lookup over w3c/browser-specs (GitHub, CF-reachable).

Part of Pipeworx — an MCP gateway connecting AI agents to 1346+ live data sources.

Tools

Tool Description

w3c_search Find W3C / web-standards specifications by keyword or topic — HTML, CSS, WCAG accessibility, DOM, SVG, WAI-ARIA, WebAuthn, Fetch, and 800+ others. Answers "what W3C spec defines X", "the CSS grid specification", "web accessibility standard", "which spec covers custom elements". Returns specs with shortname, title, status (Recommendation / Working Draft / Living Standard), organization, and official URL. Example: w3c_search({ query: "flexbox" }).

w3c_spec Detail for one web-standards spec by shortname ("WCAG21", "css-grid-1", "html") or title fragment ("web content accessibility"). Returns title, status, organization (W3C/WHATWG), working groups, series, official URL, editor's-draft URL. Example: w3c_spec({ spec: "WCAG21" }). Accepts shortname/name/title too.

Tool	Description
`w3c_search`	Find W3C / web-standards specifications by keyword or topic — HTML, CSS, WCAG accessibility, DOM, SVG, WAI-ARIA, WebAuthn, Fetch, and 800+ others. Answers "what W3C spec defines X", "the CSS grid specification", "web accessibility standard", "which spec covers custom elements". Returns specs with shortname, title, status (Recommendation / Working Draft / Living Standard), organization, and official URL. Example: w3c_search({ query: "flexbox" }).
`w3c_spec`	Detail for one web-standards spec by shortname ("WCAG21", "css-grid-1", "html") or title fragment ("web content accessibility"). Returns title, status, organization (W3C/WHATWG), working groups, series, official URL, editor's-draft URL. Example: w3c_spec({ spec: "WCAG21" }). Accepts shortname/name/title too.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "w3c": {
      "url": "https://gateway.pipeworx.io/w3c/mcp"
    }
  }
}

Or connect to the full Pipeworx gateway for access to all 1346+ data sources:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English:

ask_pipeworx({ question: "your question about W3c data" })

The gateway picks the right tool and fills the arguments automatically.

License

MIT

Reviews

No reviews yet

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W3c MCP Server

About

Security Report

Findings (1)

Permissions Required

How to Connect

Documentation

mcp-w3c

Tools

Quick Start

Using with ask_pipeworx

More

License

Reviews

No reviews yet

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