Simmer MCP Server

What the code does

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

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.

  const skillPath = path.join(skill.skillDir, skill.entrypoint);

    const child = spawn(opts.file, opts.args, {

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

        proc = subprocess.run(

            "https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage" \

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 simmer-mcp -- npx -y simmer-mcp

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

[mcp_servers.simmer-mcp]
command = "npx"
args = ["-y", "simmer-mcp"]

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

{
  "servers": {
    "simmer-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "simmer-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: SIMMER_API_KEY (Simmer API key (sk_live_...) from simmer.markets/dashboard. Required for Pro tools (autoresearch, trading, briefings). Free tools work without it), SIMMER_MCP_ALLOW_LIVE (Set to 'true' to allow live trading via simmer_trade. Without this, all trades run in paper/sim mode).