tc39-mcp MCP Server

io.github.xyzzylabs/tc39-mcp

What is the tc39-mcp MCP server?

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

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "tc39-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "tc39-mcp"
      ]
    }
  }
}

Active

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TypeScript

MIT

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MCP server for TheBrain 15: search by meaning, graph traversal and batch writes over the local API

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Read-only MCP to diff SQL Server/Azure SQL schema, procs, views, and tables between environments.

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Python

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Maintained

Search, analyze, and trade Kalshi prediction markets through Claude Desktop

Python

MIT