Install lighter-mcp for Claude Desktop

Claude Desktop reads mcpServers from claude_desktop_config.json. Restart the app after saving.

Open ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/.config/Claude/claude_desktop_config.json on Linux.
Paste the JSON config below.
Replace placeholder secrets, then restart the client if it does not reload on its own.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "winter0x-mcp-2": {
      "command": "npx",
      "args": [
        "-y",
        "lighter-mcp@0.1.1"
      ],
      "env": {
        "LIGHTER_NETWORK": "mainnet",
        "LIGHTER_ACCOUNT_INDEX": "",
        "LIGHTER_API_KEY_INDEX": "",
        "LIGHTER_API_KEY_PRIVATE_KEY": "YOUR_LIGHTER_API_KEY_PRIVATE_KEY",
        "LIGHTER_MAX_NOTIONAL_USD": "",
        "LIGHTER_CHAIN_ID": "",
        "LIGHTER_READ_ONLY_TOKEN": "YOUR_LIGHTER_READ_ONLY_TOKEN"
      }
    }
  }
}

Official Claude Desktop docs

Install lighter-mcp for Claude Desktop | MCPpedia