English
Official publisherMCPNewly listed 2026-10-14

MDN MCP

by mdn · mdn/mcp

Search MDN web-platform documentation and browser compatibility information through Mozilla’s experimental remote MCP server.

GitHub stars192 · collected 2026-10-14Repository pushedGuide checked2026-10-14

Install from the author’s instructions

Before connecting

Claude Code · Mozilla-hosted endpoint

claude mcp add --transport http mdn https://mcp.mdn.mozilla.net/

Sources: Author README · Checked 2026-10-14.

Mozilla describes this server as experimental and says it stores query interaction data. The README documents X-Moz-1st-Party-Data-Opt-Out: 1 for opting out of first-party analytics.

Sources: Author README · Checked 2026-10-14.

Tools and capabilities

CapabilityWhat it does
MDN searchFind web-platform documentation from MDN.
Documentation accessRead documentation relevant to a coding question.
Browser compatibilityRetrieve browser-support information.

Sources: Author README · Checked 2026-10-14.

Workflow examples

Suggested prompts for your own client. These are examples, not recorded tool executions.

Prompt 1

Find the MDN documentation for a web API I name and summarize its parameters with source links.

Prompt 2

Check browser compatibility for a CSS feature I am considering and explain which browsers need an alternative.

Sources and verification

Author README, linked first-party setup instructions and public repository metadata reviewed on 2026-10-14. No third-party package was installed, no MCP server was executed, and no hosted service was connected.

Recent activity refers to the repository push timestamp. It does not establish the product’s original release date. Stars are a dated snapshot of the entire repository.

  1. GitHub repository metadataVerified 2026-10-14
  2. Author READMEVerified 2026-10-14

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