Crypto Wallet Balance Alerts

A low balance alert, or a high one, on any EVM wallet: in the chain's native token or in any ERC-20 token, delivered where your team already works.

Checking a wallet balance takes seconds. Remembering to check it, every day, for every wallet and every chain, is where it breaks down. Wallet apps notify the owner of a wallet about its own activity; teams need something different: a rule like "tell #finance if the treasury holds less than 100,000 USDC", applied to wallets the team operates, and to ones it only watches.

Chainitor turns that rule into a monitor. You give it an address, a chain, a threshold and a direction, and it checks the balance for you and alerts when the threshold is crossed.

Two kinds of balance

Native balance monitor

The chain's own currency, the one gas is paid in: ETH on Ethereum, Arbitrum, Optimism, Base and Robinhood Chain, BNB on BNB Chain, POL on Polygon.

ERC-20 token balance

Any token by its contract address, such as USDC, USDT or your own token, converted with the token's own decimals.

How a balance alert behaves

Checked on a schedule: every 5 minutes on Starter, as often as every minute on Pro.
Low or high: less than for a low balance alert, greater than for a ceiling or an incoming payment.
One alert per crossing: the first check past the threshold alerts with the current balance; it does not repeat while the balance stays there.
Recovery notice: when the balance moves back across the threshold, you are told that too.
History: each check is kept, for 30 days on Starter and a year on Pro, so you can see how the balance moved.

Example alerts

Treasury floor

Monitor type: ERC-20 balance
Chain: Ethereum
Wallet: 0x8888888888888888888888888888888888888888 (placeholder)
Token: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 (USDC)
Condition: Less than 100000

Finance hears when operating reserves fall below 100,000 USDC, with time to move funds before payroll or vendor payments.

Hot wallet ceiling

Monitor type: Balance (native)
Chain: BNB Chain
Wallet: 0x9999999999999999999999999999999999999999 (placeholder)
Condition: Greater than 500 (BNB)

A hot wallet should hold only what it needs. An alert above the ceiling is the cue to sweep the excess to cold storage.

Incoming payment

Monitor type: ERC-20 balance
Chain: Polygon
Wallet: 0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa (placeholder)
Token: The stablecoin you invoice in
Condition: Greater than the expected amount

Know when a customer's payment has landed, without refreshing an explorer.

Choosing a threshold

A good low balance threshold is the amount at which you still have time to act. Work out how fast the wallet is drawn down in a normal period, how long it takes your team to move funds, and set the floor so that the second is covered by the first with room to spare. For wallets that pay gas, see low gas balance alerts for a worked example.

If you also want to know which transfer moved the balance, add a transaction value monitor on the same address (Pro plan).

Frequently asked questions

How do I get an alert when my wallet balance drops?

Create a balance monitor for the wallet address, choose its chain, set the condition to less than, and enter the amount. For a token such as USDC, use an ERC-20 balance monitor and also enter the token contract address. Chainitor checks the balance on your interval and alerts you when it falls below the amount.

Can I get an alert when a balance goes above an amount?

Yes. Set the condition to greater than. This is useful for incoming payments, for knowing when a hot wallet holds more than it should, or for a rewards balance reaching a target.

Will I keep getting alerts while the balance stays low?

No. You get one alert when the balance crosses the threshold, and a recovery notice when it moves back. A balance that stays low does not alert again until it has recovered and crossed once more.

Can I monitor a wallet I do not own?

Yes. Balances are public on-chain data, so any address can be monitored, such as a counterparty, a protocol treasury or a large holder. Chainitor never needs the wallet's private key or the owner's permission.

Which networks and alert channels are supported?

Ethereum, Polygon, Arbitrum, Optimism, BNB Chain, Base and Robinhood Chain, plus public testnets where available. Alerts go to email, Slack, Telegram, PagerDuty or a webhook on every plan.

Put a floor under every wallet that matters

Create your first wallet balance alert in a couple of minutes. Balance and ERC-20 balance monitors are on every plan.

Start monitoring free

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