tc39-mcp

io.github.xyzzylabsv0.6.3Updated Sep 23, 2026

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

VerifiedStreamable HTTPWeb executableCloud & InfrastructureWeb Search & Scraping

Installation

In SourceWeft

  1. Open tc39-mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "tc39-mcp": {
      "type": "http",
      "url": "https://mcp.xyzzylabs.ai/tc39/mcp"
    }
  }
}

Tools

0
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Version history

1
  1. v0.6.3LatestSep 16, 2026