W3c for Claude Code
io.github.pipeworx-io/w3c
W3C MCP — web-standards lookup over w3c/browser-specs (GitHub, CF-reachable).
client:Claude Code
transport:streamable-http
Install W3c in Claude Code
run in your project directory
claude mcp add --transport http w3c https://gateway.pipeworx.io/w3c/mcp
Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs