Optimism Monitors
Real-time monitoring & alerts
Ethereum L2 scaling solution with low fees and fast transactions. Monitor balances, transactions, and smart contract activity on Optimism. Get instant alerts via Slack, Telegram, or webhook.
A balance monitor tracks the native ETH of any address on this network. An ERC-20 balance monitor watches a specific token in that wallet. Transaction count monitors flag unusual activity. Event monitors fire when a contract emits a log you care about. Look up addresses on Optimism Explorer if you need to confirm what you are watching; Chainitor only reads public chain data.
ETH Balance Monitor
Track native ETH balances. Get alerts when funds drop below thresholds.
ERC-20 Token Balance
Track any ERC-20 token balance on Optimism. Alerts when a named token crosses the threshold you set.
Smart Contract Events
Monitor ERC20 transfers, swaps, liquidations, and custom contract events on Optimism.
Transaction Monitor
Track wallet activity and transaction counts. Get alerted on unusual patterns.
How Optimism monitoring works
You describe the on-chain condition once ā a treasury ETH balance falling below a threshold, an ERC-20 transfer, a contract event, or a spike in transaction count ā and Chainitor watches Optimism and tells you when it happens. Checks run continuously against public blockchain data.
Chainitor is non-custodial: it never asks for a private key or seed phrase, holds no funds, and does not sign transactions. Monitoring an address needs no permission from that address. Alerts go to email, Slack, Telegram, PagerDuty, or an HTTP webhook.