For long-term token holders
Check what happened to the tokens in an old wallet.
We find the tokens an address holds across 26 networks, then keep checking them for contract migrations, delistings and dormant projects, and email you when something needs your attention.
Read-only. We never ask for your seed phrase, private keys or a wallet signature.
What we watch for
Not price alerts. The events that can make a holding worthless while you aren't looking.
Contract migrations
When a project moves its token to a new contract, holders on the old one can be left behind. We compare the contract you hold with the project's current one and alert you when they differ.
Delistings
A token dropping out of the major market data providers is often the last public sign before liquidity disappears. We flag it on our next check.
Dormant projects
No code commits for a month and almost no trading volume, together, usually means a project has stopped. We tell you before you find out the hard way.
What an alert looks like
Contract migration detected
A project you hold is moving its token to a new contract, with a snapshot in 48 hours. Tokens on exchanges are usually migrated for you, but tokens in your own wallet may need to be migrated by you before the deadline.
Suggested next step
Check the project's official announcement. Never use a migration link sent to you in a message.
How it works
- 1
Paste a public address
One address or ENS name, checked across every network we watch. You can try it above before signing up.
- 2
We check your tokens
We find the tokens at that address and keep checking their contracts, listings and activity.
- 3
You get an alert
When something needs attention, it appears in your dashboard and we email you.
Supported chains: Ethereum, BNB Smart Chain, Polygon, Arbitrum One, Base, Optimism, Avalanche, HyperEVM, Robinhood Chain, Morph, Mantle, X Layer, Ink, Monad, Fantom, Cronos, Gnosis, Sonic, ZKsync Era, Linea, Berachain, Celo, Blast, Scroll, Unichain, Solana.
Read the full explanationWe never touch your funds
Holder's Watch only reads public blockchain data. It can't move tokens, and we will never ask you to connect a wallet, sign a transaction or share a recovery phrase. Anyone who does is not us.