Crypto wallet checker: scan a public address
A crypto wallet checker looks at a public wallet address and tells you what is connected to it. PoolIndex is a crypto wallet checker for Windows and Android that focuses on one thing: coins and tokens the owner may have forgotten, including unclaimed airdrops and old positions in DeFi apps.
The scan is read-only. It reads public blockchain data and official airdrop lists, and it does not send any transaction. You can check a public address without connecting a wallet.
What a public wallet address shows
Every transaction on Ethereum and similar networks is public. Anyone who knows an address can see its balance and history in a block explorer such as Etherscan. That is why checking an address is safe: you only look at information that is already public.
What a block explorer doesn't do is connect the dots. It shows a token balance, but it won't tell you that an address was eligible for an airdrop it never claimed, or that it still has rewards waiting in a contract from 2021. That is the gap a wallet checker fills.
One address can also be active on several networks at once. The same 0x address has separate balances on Ethereum, Arbitrum One, Optimism, Base and Polygon, and a wallet app usually shows only one network at a time.
What PoolIndex checks
One public 0x address is checked on Ethereum, Arbitrum One, Optimism, Base and Polygon, plus specific programs on Sonic and Fantom Opera.
- Native balances: ETH on Ethereum, Arbitrum One, Optimism and Base, and POL on Polygon.
- Leftover tokens: USDC, USDT, DAI, WETH and common tokens such as UNI, LINK, ENS, AAVE, LDO and ARB.
- Old DeFi positions: Aave and Compound deposits, Yearn vaults, Curve and Convex rewards, Uniswap liquidity positions and Lido withdrawals.
- Airdrops: per-address lookups for Uniswap, ENS, CoW Protocol, dYdX, Safe, Arbitrum and ZORA, plus closed programs marked as closed.
- Link checks: paste a claim link before you open it and see what PoolIndex found about it.
How results are shown
Each result shows the network and how it was checked, and airdrop results link to their official source. Sources that failed or couldn't be reached are listed as failed, so you know what wasn't checked.
A result is a lead to confirm, not a promise of funds. A link check is a signal to help you decide. It isn't a guarantee that a site is safe.
When a wallet checker is worth running
Most people don't need to check a wallet every week. A check is most useful at a few specific moments:
- You found an old wallet, or an old note with a public address, and want to know if anything is still there.
- You used DeFi apps a few years ago and are not sure every deposit was withdrawn.
- You read about an airdrop and want to know whether your address was on the list, without opening a claim page.
- Someone sent you a claim link and you want to know what is known about it before you click.
Privacy: what you share when you check
Looking up an address reveals nothing new about it, but it does link the address to you. PoolIndex stores the public wallet address you check on your account, in your plan's wallet slot. Wallet checks run in the Windows and Android apps, on your device, and their results stay there. The website itself has no wallet check. Daily monitoring and Deep Hunt keep their results on the server.
Never share a seed phrase or private key with any wallet checker. Those are the keys to the wallet. A tool that asks for them is not a checker.
How it works
Install PoolIndex.
Get PoolIndex for Windows from the Microsoft Store, or the Android app from Google Play.
Register and verify your email.
The free plan lets you check 1 wallet and 5 links a month.
Paste a public 0x address.
PoolIndex checks 0x addresses (Ethereum-style). It is the only input.
Scan and read the results.
The scan reads public data only. Each result shows the network and how it was checked, and failed sources are listed.
PoolIndex never asks for your seed phrase or private key. You can check a public address without connecting a wallet.
Frequently asked questions
- Is a crypto wallet checker safe to use?
- Checking a public address is safe, because the address and its history are already public. Only use checkers that ask for the public address alone, never for a seed phrase or private key.
- Do I need to connect a wallet?
- No. PoolIndex checks using your public wallet address only, the same address anyone can already see on the blockchain. It never asks for your seed phrase or private key.
- What is the difference between a wallet checker and a block explorer?
- A block explorer shows raw balances and transactions. PoolIndex checks the address against official airdrop lists, claim contracts and DeFi apps, and shows how each result was checked, with a link to the official source where one exists.
- Which addresses can I check?
- Public 0x addresses, the format used by Ethereum, Arbitrum One, Optimism, Base and Polygon. One 0x address is the same on all of these networks.
- Does PoolIndex move or claim coins for me?
- No. PoolIndex doesn't automate claims. If you decide to claim something, you do it yourself, in your own wallet, after confirming on the official site.
Guides on the PoolIndex blog
Check your wallet with PoolIndex
Free after you register: check 1 wallet and 5 links a month. Windows and Android.
Research results, not a promise of funds. Always confirm a result on the project's official site.