Ethereum Whale Tracker — Monitor Large Wallet Movements

Monitor any Ethereum wallet for large capital movements in real-time.

The Whale Watcher scans recent transactions for a target EVM wallet address and alerts you to any movement above your threshold. Uses Blockscout for transaction data and CoinGecko for live ETH/USD pricing — no API keys required. Produces structured per-movement records containing transaction_hash, from_address, to_address, value_eth, value_usd, direction (inflow/outflow), block_number, and timestamp.

Use Cases

• Track known whale wallets, VC fund addresses, and exchange cold wallets for large movements
• Monitor smart money flows to detect early accumulation or distribution signals
• Build on-chain whale alert bots for Telegram, Discord, or Slack notifications
• Research copy-trading opportunities by tracking profitable wallet addresses
• Detect large exchange withdrawals or deposits as leading indicators of price movement
• Monitor protocol treasury wallets or DAO multisig addresses for governance activity
• Alert on large inflows to exchanges as potential sell-pressure signals
• Track project team wallets for vesting unlock or token dump detection
• Feed on-chain intelligence into quantitative trading strategies and signal pipelines
• Build DeFi risk management tools that react to large liquidity movements
• Generate whale activity reports for crypto research newsletters and dashboards
• Monitor competitor protocol wallets to track ecosystem fund flows and treasury moves

Why use the Whale Watcher?

• Track smart money: Monitor known whale wallets, VC fund addresses, or exchange cold wallets for large movements.
• No API keys needed: Built on fully public, open APIs.
• Threshold alerts: Only get notified when capital moves exceed your defined threshold.
• Direction tracking: Know whether a large movement is an inflow or outflow.

Input

Field	Type	Default	Description
wallet_address	string	required	The EVM wallet address to monitor (0x...).
threshold_usd	integer	100000	Minimum USD value to trigger a whale alert.

Output

Each whale movement above threshold produces a record with:

{
  "transaction_hash": "0xabc...",
  "from_address": "0x123...",
  "to_address": "0x456...",
  "value_eth": 150.5,
  "value_usd": 542000.00,
  "direction": "outflow",
  "block_number": 19500000,
  "timestamp": "2026-05-16T04:00:00.000Z"
}

Pricing

Pay-Per-Event. Charged only on successful whale detection.

• $0.10 per run

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Real on-chain data. No API keys required.