A lightweight terminal UI (TUI) for real-time monitoring of Monad blockchain nodes.

⚠️ Disclaimer: This software is provided "as-is" without warranty of any kind. It has not been audited for security vulnerabilities. Use at your own risk. The authors assume no liability for any damages arising from the use of this software.

• Real-time metrics - Block height, TPS, peer count, network latency
• System monitoring - CPU, memory, disk usage, network bandwidth
• TPS sparkline - Visual history of transactions per second
• Recent blocks table - Latest blocks with gas usage visualization
• 5 color themes - Gray, Light, Monad (purple), Matrix (green), Ocean (blue)
• Heartbeat animation - Pulsing indicator based on block arrival

cargo install monad-monitor

git clone https://github.com/portdeveloper/monad-monitor
cd monad-monitor
cargo build --release

Run on a machine with a Monad node:

monad-monitor

Your Monad node must expose:

• Prometheus metrics on http://localhost:8889/metrics
• WebSocket endpoint on ws://localhost:8080 (used for real-time block subscriptions)

Note: WebSocket support must be enabled on your node. See the Monad Events and WebSockets documentation for setup instructions.

┌─────────────────────────────────────────────────────────┐
│  BLOCK        PEERS       TPS          LATENCY         │
│  12,345,678   45 ▲        1,234 ▲      12ms ▼          │
├─────────────────────────────────────────────────────────┤
│  CPU 23%  MEM 45%  DISK 67%  NET ↑12MB/s ↓8MB/s        │
├─────────────────────────────────────────────────────────┤
│  TPS ████▄▂▁▃▆████▇▅▃▂▁▂▄▆███                          │
├─────────────────────────────────────────────────────────┤
│  Block      Hash          Txs    Gas Used              │
│  12345678   0xabc...def   150    ████████░░ 82%        │
│  12345677   0x123...456   142    ███████░░░ 75%        │
└─────────────────────────────────────────────────────────┘

• Block height - Current block number with sync status
• Peers - Connected peer count with trend indicator
• TPS - Transactions per second with peak tracking
• Latency - Network latency (p99) with trend indicator

• CPU / Memory / Disk usage
• Network bandwidth (upload/download)
• Service status (monad-node, monad-mpt)
• Finalized block lag

• Block number and hash
• Transaction count
• Gas used with visual bar

MIT License - see LICENSE for details.