Alert on large ERC-20 transfers
SmartAlert watches the Transfer(from, to, value) event of your token and alerts when one transfer is above your limit. The limit is in tokens: decimals are applied for you. If the token has history, the form suggests a limit: a round number above the largest 0.1% of past transfers.
The rule
This is how the rule looks in the new-alert form. You enter the contract address when you create it.
Rule
from contract events- Watch
- Event
Transfer, fieldvalue - Fire when
valueabove your limit- Severity
- Warning
TemplateOffered automatically for ERC-20 tokens
Where it would have fired
Every rule can be checked on history before you turn it on: you see where it would have fired over the last days.
Where the alert goes
Telegram on every plan; Slack, Discord and webhook on paid plans. A new project gets Pro limits for 14 days, no card needed.
- TelegramFree
- SlackPro
- DiscordPro
- WebhookPro
Works on: Ethereum, BNB Chain, Base, Arbitrum. · Free plan: up to 3 rules.
Turn it on
- 1
Add the token address.
- 2
Check "Large transfer" and confirm or change the suggested limit.
- 3
Check the history chart: it shows how often the rule would have fired.
Why it matters
Large moves often come before price impact: a treasury moving funds, a whale exiting, or an exploit draining a pool.
Related recipes
Alert on unusual transfer activity
Alert when the number of token or NFT transfers is far above the usual level for this hour of the day.
Alert when liquidity is pulled from a pool
Watch Burn events on a Uniswap V2-style pool and get an alert when liquidity removal is far above normal.
Try it on your own contract
Paste a contract address, pick the recipe, choose where alerts go. The first 14 days have Pro limits.