What is Oko?
Oko is an Ethereum explorer focused on smart contracts.
It is intended for a public of experienced Ethereum developers.
It was developed to fill a gap in the tools available out there that wouldn't show enough information about smart contracts.
Oko tries to get the source & ABI of verified contracts, and uses Panoramix to decompile contracts without code.
It also tries to interpret the input data for all calls made to contracts, to display it in an understandable form.
How do I use it?
Simply use the search box above. You can enter:
- - A contract address
- to see source code or decompilation of a contract, calls made from/to it.
- - A transaction hash
- to see the state modification caused by the transaction, and a tree of the calls made during it.
- - A block number
- to see basic information about the block, and a list of transactions included in it.
Last block is 13243976.
You can also simulate arbitrary calls.
Top active contracts
Aggregate measures over the last 10000 blocks.
By gas usage
- 16684493847
- 0x7be8…d12b (WyvernExchange, Marketplace, OpenSea.io, Collectibles, OwnableDelegateProxy, NFT)
- 9889610604
- 0x7a25…488d (UniswapV2Router02, Router 2)
- 8021268790
- 0xe592…1564 (SwapRouter)
- 7008743084
- 0xf9e2…79f2 (OwnableDelegateProxy, AuthenticatedProxy)
- 6079520319
- 0xdac1…1ec7 (Stablecoin, TetherToken, Tether USD (USDT), https://tether.to/, Token Contract)
- 5852145051
- 0xc02a…6cc2 (Stablecoin, https://weth.io/, 0x Ecosystem, Wrapped Ether (WETH), WrappedEther, WETH9, Token Contract)
- 4053090385
- 0xa0b8…eb48 (FiatTokenProxy, Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC))
- 3707106009
- 0x881d…300c (Swap Router, MetaMask)
- 3449291623
- 0x1111…aa26 (1inch.exchange, AggregationRouterV3, 1inch V3)
- 3244457562
- 0xa232…bdcf (FiatTokenV2_1)
- 2889125002
- 0x74de…6631
- 2782862627
- 0xa540…77c1 (WyvernProxyRegistry, OwnableDelegateProxy, OpenSea.io_Registry)
- 2755753529
- 0x2723…1fd2
- 2710063540
- 0x1a2a…54f2 (Axie Infinity, MainchainGatewayProxy, Ronin Bridge)
- 2616344554
- 0x8407…f21e (MainchainGatewayManager)
- 1936169943
- 0xd9e1…8b9f (UniswapV2Router02, SushiSwap)
- 1883789659
- 0xdef1…5eff (ZeroEx)
- 1813129921
- 0x4fed…f833
- 1808322037
- 0xfbdd…e655
- 1771875935
- 0x013c…5557 (ServiceV14)
By calls received
- 634857
- 0xc02a…6cc2 (Stablecoin, https://weth.io/, 0x Ecosystem, Wrapped Ether (WETH), WrappedEther, WETH9, Token Contract)
- 282109
- 0xa540…77c1 (WyvernProxyRegistry, OwnableDelegateProxy, OpenSea.io_Registry)
- 241696
- 0xdac1…1ec7 (Stablecoin, TetherToken, Tether USD (USDT), https://tether.to/, Token Contract)
- 187570
- 0xa232…bdcf (FiatTokenV2_1)
- 187553
- 0xa0b8…eb48 (FiatTokenProxy, Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC))
- 112538
- 0x7be8…d12b (WyvernExchange, Marketplace, OpenSea.io, Collectibles, OwnableDelegateProxy, NFT)
- 104221
- 0xe592…1564 (SwapRouter)
- 90066
- 0x7a25…488d (UniswapV2Router02, Router 2)
- 89338
- 0xf9e2…79f2 (OwnableDelegateProxy, AuthenticatedProxy)
- 76035
- 0x33e7…5ad2 (Registry)
By calls emitted
- 338091
- 0x7be8…d12b (WyvernExchange, Marketplace, OpenSea.io, Collectibles, OwnableDelegateProxy, NFT)
- 312347
- 0x7a25…488d (UniswapV2Router02, Router 2)
- 187553
- 0xa0b8…eb48 (FiatTokenProxy, Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC))
- 143903
- 0x1a2a…54f2 (Axie Infinity, MainchainGatewayProxy, Ronin Bridge)
- 135378
- 0xe592…1564 (SwapRouter)
- 91785
- 0x1111…aa26 (1inch.exchange, AggregationRouterV3, 1inch V3)
- 83102
- 0x74de…6631
- 80379
- 0x2723…1fd2
- 71103
- 0xfbdd…e655
- 61809
- 0xdef1…5eff (ZeroEx)
By balance
- 7682946 eth
- 0x0000…05fa (DepositContract)
- 6973226 eth
- 0xc02a…6cc2 (Stablecoin, https://weth.io/, 0x Ecosystem, Wrapped Ether (WETH), WrappedEther, WETH9, Token Contract)
- 1688934 eth
- 0x4ddc…0ed5 (cETH Token, CEther, DeFi, Compound Ether (cETH), Token Contract)
- 653157 eth
- 0x011b…d515 (TransparentUpgradeableProxy, Arbitrum, Bridge, Layer 2)
- 521822 eth
- 0xdf9e…3d7f (ActivePool)
- 504898 eth
- 0x8484…2b30 (Ether Bridge, Matic Network, Polygon (Matic), EtherPredicateProxy, Ether Predicate Proxy)
- 482542 eth
- 0xdc24…7022 (Vyper_contract)
- 411786 eth
- 0xa929…490c (Bridge)
- 391868 eth
- 0xde0b…7bae (Ethereum Foundation, EthDev)
- 390741 eth
- 0x07ee…3eca (Contract 1, Exchange, Gemini)
About
An experiment by palkeo. Feel free to contact me at oko@palkeo.com.
Thanks to my generous Ethereum hosting provider for a spot in his attic. Powered by a free-range Internet.