MCP Sidecar

About MCP Sidecar

Use MCP Sidecar with your agent

claude mcp add mcp-sidecar -- npx -y mcp-sidecar

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

Frequently asked questions

What is MCP Sidecar?

MCP Sidecar is an MCP (Model Context Protocol) server by lsequeiraa in the Developer Tools category. Cross-platform MCP server for managing long-lived background processes from any MCP client

How do I connect MCP Sidecar to Claude, Cursor, or another MCP client?

Install MCP Sidecar from its npm package (mcp-sidecar) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.

Is MCP Sidecar open source?

Yes — the source code is public at github.com/lsequeiraa/mcp-sidecar.

Can AI agents pay to use MCP Sidecar?

Not yet through Loomal — MCP Sidecar is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.