Cross-Chain Bridge Monitor
FreeTrack and compare cross-chain bridge transactions and metrics.
Free · Opens the source repo
What Cross-Chain Bridge Monitor does
The Cross-Chain Bridge Monitor skill enables users to efficiently monitor and analyze cross-chain bridge activities across various protocols. It provides insights into Total Value Locked (TVL), transaction volumes, fees, and the status of transactions across multiple blockchain networks. This skill is particularly useful for developers and researchers in the DeFi space who need to evaluate different bridges for their performance and reliability.
With this skill, users can execute commands to retrieve rankings of bridges based on TVL, list all available bridges, and obtain detailed information about specific bridges. The comparison feature allows users to assess the best routes for transferring assets between chains, taking into account transaction fees and estimated transfer times. Additionally, users can track the status of specific transactions, ensuring they are informed about the progress of their operations.
The skill is built using Python and requires the requests library along with internet access to interact with various APIs, such as DefiLlama. It supports a wide range of chains, including Ethereum, BSC, Polygon, and many more, making it a versatile tool for anyone involved in cross-chain transactions. The output can be formatted as JSON, which is beneficial for further analysis or integration into other systems.
Overall, this skill is designed for those who need to keep a close eye on cross-chain bridge dynamics, whether for research, development, or operational purposes. Its comprehensive command set and detailed output make it an essential tool for anyone working in the decentralized finance sector.
When to use it
Use this skill when you need to research bridges, compare transfer routes, or track specific transactions across different blockchain networks.
When not to use it
This skill may not be suitable for users who require real-time transaction execution or those looking for a simple wallet management tool.
What you can build with it
Researching Bridge Performance
Use the skill to gather data on various bridges' TVL and transaction volumes to assess their reliability.
Comparing Transfer Routes
Before making a transfer, compare fees and estimated times for different bridges to find the most efficient route.
Tracking Specific Transactions
Monitor the status of your transactions across different bridges to ensure they are processed correctly.
How to install Cross-Chain Bridge Monitor
View source1. Install with the skills CLI
npx skills add jeremylongshore/claude-code-plugins-plus-skills/monitoring-cross-chain-bridges --agent claude-code2. Or install it manually
Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.
Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs
Inside SKILL.md
Written by jeremylongshoreCross-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
requestslibrary - Internet access for DefiLlama and bridge APIs
- Optional: Custom RPC URLs for on-chain verification
Commands
tvl - Bridge TVL Rankings
python bridge_monitor.py tvl --limit 20
Shows bridges ranked by Total Value Locked.
bridges - List All Bridges
python bridge_monitor.py bridges
python bridge_monitor.py bridges --chain arbitrum
Lists bridges by 24h volume with optional chain filter.
detail - Bridge Details
python bridge_monitor.py detail --bridge stargate
Shows detailed info including volume, chains, and TVL breakdown.
compare - Compare Routes
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
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
python bridge_monitor.py chains
Shows all supported chains.
protocols - List Protocols
python bridge_monitor.py protocols
Shows supported bridge protocols with their chains.
Instructions
-
Check bridge TVL rankings:
cd ${CLAUDE_SKILL_DIR}/scripts python bridge_monitor.py tvl -
Compare bridge routes before transferring:
python bridge_monitor.py compare -s ethereum -d base -a 5000 -t USDC # 5000: bridge transfer amount in USD -
Get bridge details for research:
python bridge_monitor.py detail --bridge across -
Track a transaction:
python bridge_monitor.py tx --tx-hash 0x1234... -
Export to JSON for analysis:
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 jsonflag
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
- DefiLlama Bridges - Bridge TVL and volume
- Wormhole Scan - Wormhole transaction explorer
- LayerZero Scan - LayerZero message explorer
- Across Protocol - Optimistic bridge
Frequently asked questions about Cross-Chain Bridge Monitor
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