Recover ETH stuck in old smart contracts

MoonCatRescue

Deployed August 9, 2017, one of the earliest NFTs on Ethereum — before the term "NFT" or ERC-721 existed. Features 25,440 generative pixel art cats with a proof-of-work minting mechanism. Only 3,365 cats were rescued in 2017; on March 12, 2021 crypto-archaeologists rediscovered it and all remaining 19,000+ cats were rescued within hours. Note: ~100 ETH from the genesis cat is permanently stuck at address(0) due to a contract bug. Users with pending adoption requests must cancel them to reclaim escrowed ETH.

Contract: 0x60cd862c9c687a9de49aecdc3a99b74a4fc54ab6 · Deployed: August 2017
Unclaimed ETH
245.24 ETH
Addresses
610

ETH Balance Over Time

Contract Interactions

Balance Distribution

RangeAddressesTotal
>=100 ETH1100.80 ETH
10-100 ETH135.27 ETH
1-10 ETH4379.22 ETH
0.1-1 ETH9725.08 ETH
0.01-0.1 ETH1894.35 ETH
<0.01 ETH2930.5238 ETH
Frequently Asked Questions
Paste any address or connect your wallet. We check 256 defunct contracts for unclaimed balances. If found, click Withdraw — the transaction goes directly from the original contract to your wallet.
Yes. Fully open source. No proxy contracts, no intermediaries. Most withdrawals are simple ETH transfers with no approvals needed. A few contracts (e.g. wrapped ETH variants, dividend tokens) require a token burn or two-step process — the UI explains each case. Every withdrawal can be done manually on Etherscan — this site just makes it easier.
DeBank, Zerion, and Zapper only index active protocols. These contracts are defunct or too obscure to be tracked. Your ETH is still onchain, it just doesn't show up in standard wallet interfaces.
No. Completely free. After a successful claim, there's an optional donation prompt — entirely voluntary.
256 contracts across defunct DEXes (EtherDelta, IDEX v1, Token.Store), dividend tokens (PoWH3D, Fomo3D), NFT auctions (MoonCatRescue, DADA), bounty platforms, ICO escrows, ENS old registrar deeds, DAO treasury refunds (DigixDAO), and wrapped ETH variants.
You don't need this site to claim. Every withdrawal can be done directly on Etherscan: go to the contract, click "Write Contract", connect your wallet, call the withdraw function. We simply facilitate the crafting of withdrawal transactions on your behalf — each contract's address and function is shown in the claim details. Our code is open source for anyone to audit. Know a contract we're missing? Open an issue.