How do I install the Whale Watch skill?

Run npx skillmds add modbender/whale-watch in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Whale Watch safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: makes network calls, reads secrets. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Whale Watch?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Whale Watch free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Whale Watch?

modbender (@modbender) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Whale Watch by modbender — Agent Skill

Name: Whale Watch
Rating: 4.2 (5 reviews)
Author: modbender

File contents

Whale Watch — Large Transaction Monitor

Track big money moves across blockchains using free public APIs.

Hedera Whale Detection

# Transactions over 10,000 HBAR in last hour
curl -s "https://mainnet-public.mirrornode.hedera.com/api/v1/transactions?type=cryptotransfer&limit=100&order=desc" | \
  jq '[.transactions[] | select(.transfers[]?.amount > 1000000000000) | {id: .transaction_id, time: .consensus_timestamp, transfers: [.transfers[] | select(.amount > 1000000000000) | {account: .account, hbar: (.amount / 100000000)}]}] | .[:10]'

Track a Specific Wallet

WALLET="0.0.1234"
curl -s "https://mainnet-public.mirrornode.hedera.com/api/v1/transactions?account.id=$WALLET&limit=25&order=desc" | \
  jq '.transactions[] | {time: .consensus_timestamp, type: .name, result: .result}'

Ethereum Whale Watch (Etherscan — needs free API key)

# Large ETH transfers (register at etherscan.io for free key)
curl -s "https://api.etherscan.io/api?module=account&action=txlist&address=WALLET&sort=desc&apikey=YOUR_KEY" | \
  jq '.result[:10] | .[] | {hash: .hash[:16], value_eth: (.value | tonumber / 1e18), from: .from[:12], to: .to[:12]}'

Solana Large Transfers

# Recent signatures for a wallet
curl -s "https://api.mainnet-beta.solana.com" \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"getSignaturesForAddress","params":["WALLET_ADDRESS",{"limit":10}]}' | \
  jq '.result[] | {signature: .signature[:20], slot: .slot, time: .blockTime}'

Automated Monitoring

Add to your heartbeat for periodic whale checks:

## Whale Watch (every 2 hours)
curl -s "https://mainnet-public.mirrornode.hedera.com/api/v1/transactions?type=cryptotransfer&limit=50&order=desc" | \
  jq '[.transactions[] | select(.transfers[]?.amount > 1000000000000)] | length' 
# If > 0, investigate and alert

Tips

Hedera Mirror Node is free, no auth, generous rate limits
Etherscan free tier: 5 calls/sec, plenty for monitoring
Solana RPC: public endpoints work but can be slow under load
For real-time: consider WebSocket connections to RPC nodes

---name: whale-watchdescription: Monitor large crypto transactions across chains. Track whale wallets, detect unusual volume, alert on big moves. Supports Hedera, Ethereum, and Solana via public APIs.--- # Whale Watch — Large Transaction Monitor Track big money moves across blockchains using free public APIs. ## Hedera Whale Detection ```bash # Transactions over 10,000 HBAR in last hour curl -s "https://mainnet-public.mirrornode.hedera.com/api/v1/transactions?type=cryptotransfer&limit=100&order=desc" | \ jq '[.transactions[] | select(.transfers[]?.amount > 1000000000000) | {id: .transaction_id, time: .consensus_timestamp, transfers: [.transfers[] | select(.amount > 1000000000000) | {account: .account, hbar: (.amount / 100000000)}]}] | .[:10]' ``` ## Track a Specific Wallet ```bash WALLET="0.0.1234" curl -s "https://mainnet-public.mirrornode.hedera.com/api/v1/transactions?account.id=$WALLET&limit=25&order=desc" | \ jq '.transactions[] | {time: .consensus_timestamp, type: .name, result: .result}' ``` ## Ethereum Whale Watch (Etherscan — needs free API key) ```bash # Large ETH transfers (register at etherscan.io for free key) curl -s "https://api.etherscan.io/api?module=account&action=txlist&address=WALLET&sort=desc&apikey=YOUR_KEY" | \ jq '.result[:10] | .[] | {hash: .hash[:16], value_eth: (.value | tonumber / 1e18), from: .from[:12], to: .to[:12]}' ``` ## Solana Large Transfers ```bash # Recent signatures for a wallet curl -s "https://api.mainnet-beta.solana.com" \ -H "Content-Type: application/json" \ -d '{"jsonrpc":"2.0","id":1,"method":"getSignaturesForAddress","params":["WALLET_ADDRESS",{"limit":10}]}' | \ jq '.result[] | {signature: .signature[:20], slot: .slot, time: .blockTime}' ``` ## Automated Monitoring Add to your heartbeat for periodic whale checks: ```markdown ## Whale Watch (every 2 hours) curl -s "https://mainnet-public.mirrornode.hedera.com/api/v1/transactions?type=cryptotransfer&limit=50&order=desc" | \ jq '[.transactions[] | select(.transfers[]?.amount > 1000000000000)] | length' # If > 0, investigate and alert ``` ## Tips - Hedera Mirror Node is free, no auth, generous rate limits - Etherscan free tier: 5 calls/sec, plenty for monitoring - Solana RPC: public endpoints work but can be slow under load - For real-time: consider WebSocket connections to RPC nodes

Frequently asked questions