crypto-watcher

Monitor crypto wallets and DeFi positions. Get alerts when things change.

Features

• Wallet tracking: ETH + token balances across chains
• DeFi positions: LP positions, lending health, staking rewards
• Gas alerts: Notify when gas is cheap for transactions
• Whale alerts: Large transfers on watched tokens

Usage

Setup

# Add a wallet to watch
crypto-watcher add 0x1234...abcd --name "main" --chains eth,arb,base

# Configure alerts
crypto-watcher config --gas-alert 20 --balance-change 5%

Commands

# Check all positions
crypto-watcher status

# Check specific wallet
crypto-watcher status main

# Gas prices
crypto-watcher gas

# DeFi positions (via DefiLlama)
crypto-watcher defi 0x1234...abcd

Heartbeat Integration

Add to HEARTBEAT.md:

### Crypto Check
- Run `crypto-watcher status --quiet` 
- Alert if any position health < 1.5 or balance dropped > 10%
- Check gas, alert if < 15 gwei (good time for L1 txs)

Config

~/.config/crypto-watcher/config.json

:

{
  "wallets": [
    {
      "address": "0x...",
      "name": "main",
      "chains": ["eth", "arb", "base"]
    }
  ],
  "alerts": {
    "gasThreshold": 20,
    "balanceChangePercent": 5,
    "healthFactorMin": 1.5
  }
}

Data Sources

• Balances: Public RPCs (no API key needed)
• DeFi: DefiLlama API (free)
• Gas: eth_gasPrice RPC call
• Prices: CoinGecko API (free tier)

Chains Supported

Chain	ID	RPC
Ethereum	eth	https://eth.llamarpc.com
Arbitrum	arb	https://arb1.arbitrum.io/rpc
Base	base	https://mainnet.base.org
Optimism	op	https://mainnet.optimism.io
Polygon	matic	https://polygon-rpc.com