l402-kit

MCP server for L402-protected APIs via Bitcoin Lightning. Pay-per-call AI tools in sats.

build.protocol_tooling.mcp

Install l402-kit in your MCP client

l402-kit is a Model Context Protocol server. Add it to your MCP client config once, restart, and the server's tools become available to your AI assistant. The same JSON snippet below works across all four major clients — only the config file path differs.

  1. Locate your client's MCP config file.
    • Cursor: ~/.cursor/mcp.json
    • Claude Desktop (macOS): ~/Library/Application Support/Claude/claude_desktop_config.json
    • Claude Desktop (Windows): %APPDATA%\Claude\claude_desktop_config.json
    • VS Code: Settings → Extensions → MCP
    • Windsurf: Settings → MCP Servers
  2. Add l402-kit to the mcpServers map — paste the snippet below into your config file. If you already have other MCP servers, merge the entry into the existing mcpServers object.
  3. Restart your client so it picks up the new server.
  4. Verify — ask the assistant to list available tools; l402-kit's tools should appear.
{
  "mcpServers": {
    "l402-kit": {
      "command": "npx",
      "args": [
        "-y",
        "l402-kit"
      ]
    }
  }
}

Install l402-kit in Cursor

Open ~/.cursor/mcp.json in your editor, paste the snippet above into mcpServers, save, and restart Cursor. l402-kit will show up in the assistant's tool list on next launch.

Install l402-kit in Claude Desktop (macOS)

Open ~/Library/Application Support/Claude/claude_desktop_config.json in your editor, paste the snippet above into mcpServers, save, and restart Claude Desktop (macOS). l402-kit will show up in the assistant's tool list on next launch.

Install l402-kit in Claude Desktop (Windows)

Open %APPDATA%\Claude\claude_desktop_config.json in your editor, paste the snippet above into mcpServers, save, and restart Claude Desktop (Windows). l402-kit will show up in the assistant's tool list on next launch.

Install l402-kit in VS Code

Open Settings → Extensions → MCP in your editor, paste the snippet above into mcpServers, save, and restart VS Code. l402-kit will show up in the assistant's tool list on next launch.

npm package: l402-kit

Transport

l402-kit supports the following MCP transports. Most AI clients use stdio by default for locally-installed servers.

stdio

Other Model Context Protocol servers in the same space as l402-kit. Each one adds different capabilities to your AI assistant — pick based on the data sources or workflows you need.

Browse the full MCP server directory or use Stork's one-line install to let your agent pick the right server automatically.