Gasoline + Claude Desktop

Gasoline is an open-source MCP server that gives Claude Desktop real-time access to browser console logs, network errors, exceptions, WebSocket events, and live DOM state. Zero dependencies.

Configuration

Edit the Claude Desktop config file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json

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

Usage

After restarting Claude Desktop, Claude can:

• Read browser console errors and warnings
• Inspect failed API calls with response bodies
• Query the live DOM
• Monitor WebSocket connections
• Run accessibility audits

Ask Claude: “What errors are showing in my browser?”

Troubleshooting

1. Restart Claude Desktop after editing config
2. Check file location — path is OS-specific
3. Verify JSON syntax — invalid JSON fails silently
4. Check extension popup — should show “Connected”