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 13770277.
You can also simulate arbitrary calls.
Top active contracts
Aggregate measures over the last 10000 blocks.
By gas usage
- 14202124199
- 0x7a25…488d (UniswapV2Router02, Router 2)
- 10623467994
- 0x7be8…d12b (OwnableDelegateProxy, Collectibles, Marketplace, NFT, WyvernExchange, OpenSea.io)
- 8454017815
- 0xe592…1564 (SwapRouter)
- 6096726449
- 0xc02a…6cc2 (https://weth.io/, Stablecoin, WrappedEther, WETH9, Wrapped Ether (WETH), Token Contract, 0x Ecosystem)
- 5962535478
- 0xdac1…1ec7 (Tether USD (USDT), Stablecoin, https://tether.to/, TetherToken, Bitfinex, Token Contract)
- 4724510905
- 0xf9e2…79f2 (OwnableDelegateProxy, AuthenticatedProxy)
- 4193070717
- 0xfbdd…e655
- 4106696356
- 0x4161…486b (ServiceV18)
- 3894066901
- 0xa0b8…eb48 (FiatTokenProxy, Stablecoin, USD Coin (USDC), https://www.centre.io/, Token Contract)
- 3306509367
- 0x881d…300c (MetaMask, Swap Router)
- 3123333140
- 0xa232…bdcf (FiatTokenV2_1)
- 2906496782
- 0xdef1…5eff (Zerox Exchange, ZeroEx)
- 2778118543
- 0xa540…77c1 (WyvernProxyRegistry, OwnableDelegateProxy, OpenSea.io_Registry)
- 2567874739
- 0x74de…6631
- 2547990155
- 0x1111…097d (AggregationRouterV4)
- 1949433068
- 0x220b…96d4
- 1883239247
- 0x999e…d3ab (WnD)
- 1716496898
- 0x1c51…d732 (WnDGameCR)
- 1677639909
- 0xf042…2281 (Tower)
- 1576494236
- 0x283a…b7f5 (ENS, ETH Registrar Controller, ETHRegistrarController)
By calls received
- 651533
- 0xc02a…6cc2 (https://weth.io/, Stablecoin, WrappedEther, WETH9, Wrapped Ether (WETH), Token Contract, 0x Ecosystem)
- 234110
- 0xdac1…1ec7 (Tether USD (USDT), Stablecoin, https://tether.to/, TetherToken, Bitfinex, Token Contract)
- 183055
- 0xa540…77c1 (WyvernProxyRegistry, OwnableDelegateProxy, OpenSea.io_Registry)
- 171376
- 0xa232…bdcf (FiatTokenV2_1)
- 171365
- 0xa0b8…eb48 (FiatTokenProxy, Stablecoin, USD Coin (USDC), https://www.centre.io/, Token Contract)
- 118817
- 0x7a25…488d (UniswapV2Router02, Router 2)
- 117367
- 0xe592…1564 (SwapRouter)
- 94909
- 0x999e…d3ab (WnD)
- 69201
- 0x7be8…d12b (OwnableDelegateProxy, Collectibles, Marketplace, NFT, WyvernExchange, OpenSea.io)
- 61172
- 0xf9e2…79f2 (OwnableDelegateProxy, AuthenticatedProxy)
By calls emitted
- 404075
- 0x7a25…488d (UniswapV2Router02, Router 2)
- 221336
- 0x7be8…d12b (OwnableDelegateProxy, Collectibles, Marketplace, NFT, WyvernExchange, OpenSea.io)
- 171365
- 0xa0b8…eb48 (FiatTokenProxy, Stablecoin, USD Coin (USDC), https://www.centre.io/, Token Contract)
- 151411
- 0xfbdd…e655
- 149876
- 0xe592…1564 (SwapRouter)
- 115749
- 0xdef1…5eff (Zerox Exchange, ZeroEx)
- 94758
- 0x1a50…b812
- 86084
- 0xf042…2281 (Tower)
- 79891
- 0x74de…6631
- 70826
- 0x1111…097d (AggregationRouterV4)
By balance
- 8580850 eth
- 0x0000…05fa (DepositContract)
- 7437118 eth
- 0xc02a…6cc2 (https://weth.io/, Stablecoin, WrappedEther, WETH9, Wrapped Ether (WETH), Token Contract, 0x Ecosystem)
- 1537180 eth
- 0x4ddc…0ed5 (CEther, cETH Token, DeFi, Token Contract, Compound Ether (cETH))
- 510383 eth
- 0xdf9e…3d7f (ActivePool)
- 484217 eth
- 0xdc24…7022 (Vyper_contract)
- 430942 eth
- 0x8484…2b30 (Polygon (Matic), Ether Bridge, EtherPredicateProxy, Ether Predicate Proxy, Matic Network)
- 411787 eth
- 0xa929…490c (Bridge)
- 347741 eth
- 0x07ee…3eca (Exchange, Contract 1, Gemini)
- 323403 eth
- 0x011b…d515 (Layer 2, TransparentUpgradeableProxy, Bridge, Arbitrum)
- 292578 eth
- 0xbddf…12be
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.