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mcp/harbor
Verified official

tc39-mcp MCP

v0.6.3

io.github.xyzzylabs/tc39-mcp

Independent MCP server for the TC39 specs (ECMA-262 + ECMA-402): clauses, search, diffs, history.

transport:streamable-http runtime:npm
View source Website

Target client

run in your project directory 

claude mcp add --transport http tc39-mcp https://mcp.xyzzylabs.ai/tc39/mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.