Agent skill

monitoring-cross-chain-bridges

Monitor cross-chain bridge TVL, volume, fees, and transaction status across networks. Use when researching bridges, comparing routes, or tracking bridge transactions. Trigger with phrases like "monitor bridges", "compare bridge fees", "track bridge tx", "bridge TVL", or "cross-chain transfer status".

View SKILL.md on GitHub Repository
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Install this agent skill to your Project

npx add-skill https://github.com/jeremylongshore/claude-code-plugins-plus-skills/tree/main/plugins/crypto/cross-chain-bridge-monitor/skills/monitoring-cross-chain-bridges

SKILL.md

Cross-Chain Bridge Monitor

Overview

Monitor cross-chain bridge activity across multiple protocols. Track TVL, compare fees and transfer times, and monitor transaction status for bridges like Stargate, Across, Wormhole, and LayerZero.

Prerequisites

Before using this skill, ensure you have:

  • Python 3.8+ with requests library
  • Internet access for DefiLlama and bridge APIs
  • Optional: Custom RPC URLs for on-chain verification

Commands

tvl - Bridge TVL Rankings

bash
python bridge_monitor.py tvl --limit 20

Shows bridges ranked by Total Value Locked.

bridges - List All Bridges

bash
python bridge_monitor.py bridges
python bridge_monitor.py bridges --chain arbitrum

Lists bridges by 24h volume with optional chain filter.

detail - Bridge Details

bash
python bridge_monitor.py detail --bridge stargate

Shows detailed info including volume, chains, and TVL breakdown.

compare - Compare Routes

bash
python bridge_monitor.py compare --source ethereum --dest arbitrum --amount 1000 --token USDC  # 1000: 1 second in ms

Compares fees and transfer times across bridges for a route.

tx - Track Transaction

bash
python bridge_monitor.py tx --tx-hash 0x...
python bridge_monitor.py tx --tx-hash 0x... --bridge wormhole

Tracks bridge transaction status across protocols.

chains - List Chains

bash
python bridge_monitor.py chains

Shows all supported chains.

protocols - List Protocols

bash
python bridge_monitor.py protocols

Shows supported bridge protocols with their chains.

Instructions

  1. Check bridge TVL rankings:

    bash
    cd ${CLAUDE_SKILL_DIR}/scripts
python bridge_monitor.py tvl

  2. Compare bridge routes before transferring:

    bash
    python bridge_monitor.py compare -s ethereum -d base -a 5000 -t USDC  # 5000: bridge transfer amount in USD

  3. Get bridge details for research:

    bash
    python bridge_monitor.py detail --bridge across

  4. Track a transaction:

    bash
    python bridge_monitor.py tx --tx-hash 0x1234...

  5. Export to JSON for analysis:

    bash
    python bridge_monitor.py -f json bridges > bridges.json

Supported Bridges

Bridge Type Avg Time Typical Fee
Wormhole Messaging ~15 min ~0.1%
LayerZero Messaging ~3 min ~0.06%
Stargate Liquidity ~2 min ~0.06%
Across Liquidity ~1 min ~0.04%

Supported Chains

  • Ethereum, BSC, Polygon, Arbitrum, Optimism
  • Base, Avalanche, Fantom, Solana (Wormhole)
  • 45+ total chains via DefiLlama

Output

  • TVL rankings: Bridges sorted by locked value
  • Fee comparison: Side-by-side fee and time estimates
  • TX status: Source/destination confirmation status
  • JSON format: Structured data with -f json flag

Error Handling

See ${CLAUDE_SKILL_DIR}/references/errors.md for comprehensive error handling including:

  • API unavailability and fallback behavior
  • Transaction tracking edge cases
  • Rate limiting mitigation

Examples

See ${CLAUDE_SKILL_DIR}/references/examples.md for detailed examples including:

  • Finding best route for large transfers
  • Monitoring transactions after bridging
  • Research workflows for bridge safety

Resources

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