Bridge Monitor
Monitor cross-chain bridge health, TVL, transaction status, and liquidity pools. Get alerts on bridge anomalies and stuck transactions.
Supported Bridges
- Official Bridges: Polygon PoS, Arbitrum, Optimism, Base
- Third-Party: Across, Hop, Stargate, Synapse
Configuration
{
"type": "bridge",
"name": "Polygon Bridge Monitor",
"bridgeProtocol": "polygon-pos",
"sourceChain": "ethereum",
"targetChain": "polygon",
"tvlThreshold": { "dropPercentage": 30 },
"monitorTransactions": true,
"interval": 300000
}
Metrics Monitored
| Metric | Description | Alert |
|---|
| Bridge TVL | Total locked value | 30% drop |
| Transaction Status | Pending tx time | >1 hour |
| Liquidity | Available for bridging | 50% drop |
| Failure Rate | Failed transactions | >10% |
Alert Examples
Bridge TVL Drop
📉 Bridge TVL Alert
Bridge: Polygon PoS Bridge
Route: Ethereum → Polygon
TVL: $850M (was $1.2B)
Change: -$350M (-29%)
Timeframe: 24 hours
Possible Issues:
- Mass withdrawal event
- Security concern
- Alternative bridge preferred
[View Bridge] [Check Activity]
Stuck Transaction
⏱️ Bridge Transaction Delayed
Bridge: Arbitrum Bridge
TX: 0xabcd...ef01
Amount: 5 ETH
Status: Pending
Time: 2 hours 15 minutes
Expected: ~15 minutes
Action: Check bridge status
[View Transaction]
Use Cases
1. Bridge Health Monitoring
Monitor: All major bridges
Alert: TVL drops, delays
Channel: Slack #bridge-alerts
Action: Notify users
2. Personal Transaction Tracking
Monitor: Your bridge txs
Alert: Pending > 1 hour
Channel: Telegram personal
Action: Manual investigation
3. Protocol Integration
Monitor: Partner bridges
Alert: Liquidity low
Action: Redirect to backup bridge
Best Practices
- Monitor Both Directions: L1→L2 and L2→L1
- Track Multiple Bridges: Have alternatives ready
- Set Realistic Timeouts: Official bridges can take 7 days
- Check Liquidity: Low liquidity causes delays
Bridge Comparison
| Bridge | Time | Security | Cost |
|---|
| Arbitrum Official | 7 days (L2→L1) | High | Low |
| Optimism Official | 7 days (L2→L1) | High | Low |
| Polygon PoS | ~3 hours | Medium | Low |
| Hop Protocol | ~15 min | Medium | Medium |
| Across | ~5 min | Medium | Low |
Next Steps