tab MCP Server

What the code does

We read the source, 1 d ago · rules 995398eba69f

A value the model can set ends up inside a file or shell call. That is not a flaw by itself — for a terminal server it is the job — but it is where things go wrong when it is not.

          res.end(readFileSync(file));

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 child = spawn(bin, args, { cwd, env: { ...process.env, CLAUDECODE: undefined }, stdio: ['pipe', 'pipe', 'pipe'] });

    tb.innerHTML = state.companies.length

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 tab -- npx -y paidwithtab

{
  "mcpServers": {
    "tab": {
      "command": "npx",
      "args": [
        "-y",
        "paidwithtab"
      ]
    }
  }
}

[mcp_servers.tab]
command = "npx"
args = ["-y", "paidwithtab"]

{
  "mcpServers": {
    "tab": {
      "command": "npx",
      "args": [
        "-y",
        "paidwithtab"
      ]
    }
  }
}

{
  "servers": {
    "tab": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "paidwithtab"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: TAB_AGENT (Agent key file. Default ~/.tab/agent.json, which `npx paidwithtab init` creates with a mandate and starter credits), TAB_MANDATE (Owner-signed mandate file. Default ~/.tab/mandate.json), TAB_MAX_PER_CALL (Refuse any single call priced above this many dollars, e.g. 0.05), TAB_CATALOG (Catalog to search. Default https://paidwithtab.com).