tfl-ts MCP Server

What the code does

We read the source, 6 d ago · rules 995398eba69f

Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.

  execSync(`pnpm exec ts-node ${script}`, {

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  execSync(`pnpm exec ts-node ${script}`, {

    const filePath = path.join(metaDir, fileName);

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add tfl-ts -e 'TFL_APP_KEY=<TFL_APP_KEY>' -- npx -y tfl-ts

{
  "mcpServers": {
    "tfl-ts": {
      "command": "npx",
      "args": [
        "-y",
        "tfl-ts"
      ],
      "env": {
        "TFL_APP_KEY": "<TFL_APP_KEY>"
      }
    }
  }
}

[mcp_servers.tfl-ts]
command = "npx"
args = ["-y", "tfl-ts"]
env = { TFL_APP_KEY = "<TFL_APP_KEY>" }

{
  "mcpServers": {
    "tfl-ts": {
      "command": "npx",
      "args": [
        "-y",
        "tfl-ts"
      ],
      "env": {
        "TFL_APP_KEY": "<TFL_APP_KEY>"
      }
    }
  }
}

{
  "servers": {
    "tfl-ts": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "tfl-ts"
      ],
      "env": {
        "TFL_APP_KEY": "<TFL_APP_KEY>"
      }
    }
  }
}

Put your own value in place of <TFL_APP_KEY> (TfL API primary key. Live tools need it. Static tools (docs, resolve_line_id, get_supported_modes) do not). The author’s registry entry marks it as required.

Optional settings from the registry entry, left out of the block above: TFL_MCP_MIN_INTERVAL_MS (Minimum milliseconds between outbound TfL requests. Default 250. Cache hits do not count).