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 15634522.
You can also simulate arbitrary calls.
Top active contracts
Aggregate measures over the last 10000 blocks.
By gas usage
- 33233652210
- 0x68b3…fc45 (SwapRouter02)
- 11542873786
- 0x0000…e581 (Seaport)
- 7881437888
- 0x7a25…488d (UniswapV2Router02, Router 2)
- 7434853415
- 0xc02a…6cc2 (0x Ecosystem, Token Contract, WrappedEther, https://weth.io/, Stablecoin, WETH9, Wrapped Ether (WETH))
- 5314818974
- 0xdac1…1ec7 (Token Contract, Stablecoin, https://tether.to/, TetherToken, Tether USD (USDT), Bitfinex)
- 4830578357
- 0x1e00…3c71 (Conduit)
- 4770902765
- 0xa0b8…eb48 (Token Contract, Stablecoin, USD Coin (USDC), https://www.centre.io/, FiatTokenProxy)
- 4349117829
- 0x1111…097d (AggregationRouterV4)
- 3872406246
- 0xa232…bdcf (FiatTokenV2_1)
- 3331152990
- 0x283a…b7f5 (ETHRegistrarController, ETH Registrar Controller, ENS)
- 3001207577
- 0x881d…300c (Swap Router, MetaMask)
- 2828165273
- 0xf2f4…b8a8
- 2778278646
- 0x83c8…aba2 (GemSwap)
- 2386616204
- 0xdef1…5eff (ZeroEx, Zerox Exchange)
- 2339154090
- 0x74de…6631
- 2023805089
- 0x88e6…5640
- 1985765440
- 0x7431…eed3
- 1901802312
- 0x6d78…ed88 (X2Y2_r1)
- 1871311309
- 0xc364…fe88 (NonfungiblePositionManager)
- 1786346468
- 0x57f1…ea85 (Ethereum Name Service (ENS), Base Registrar Implementation, BaseRegistrarImplementation)
By calls received
- 862327
- 0xc02a…6cc2 (0x Ecosystem, Token Contract, WrappedEther, https://weth.io/, Stablecoin, WETH9, Wrapped Ether (WETH))
- 282557
- 0x68b3…fc45 (SwapRouter02)
- 253335
- 0xa232…bdcf (FiatTokenV2_1)
- 253098
- 0xa0b8…eb48 (Token Contract, Stablecoin, USD Coin (USDC), https://www.centre.io/, FiatTokenProxy)
- 222798
- 0xdac1…1ec7 (Token Contract, Stablecoin, https://tether.to/, TetherToken, Tether USD (USDT), Bitfinex)
- 99219
- 0x57f1…ea85 (Ethereum Name Service (ENS), Base Registrar Implementation, BaseRegistrarImplementation)
- 94450
- 0x7a25…488d (UniswapV2Router02, Router 2)
- 91162
- 0x004c…0c00 (PausableZone)
- 90078
- 0x0000…e581 (Seaport)
- 82370
- 0x0000…2e1e (ENSRegistryWithFallback, Registry with Fallback)
By calls emitted
- 682497
- 0x68b3…fc45 (SwapRouter02)
- 281476
- 0x7a25…488d (UniswapV2Router02, Router 2)
- 253020
- 0xa0b8…eb48 (Token Contract, Stablecoin, USD Coin (USDC), https://www.centre.io/, FiatTokenProxy)
- 217561
- 0x0000…e581 (Seaport)
- 129887
- 0x1e00…3c71 (Conduit)
- 128713
- 0x283a…b7f5 (ETHRegistrarController, ETH Registrar Controller, ENS)
- 93768
- 0x1111…097d (AggregationRouterV4)
- 86077
- 0xdef1…5eff (ZeroEx, Zerox Exchange)
- 77137
- 0x88e6…5640
- 75065
- 0xf2f4…b8a8
By balance
- 13708119 eth
- 0x0000…05fa (DepositContract)
- 3694635 eth
- 0xc02a…6cc2 (0x Ecosystem, Token Contract, WrappedEther, https://weth.io/, Stablecoin, WETH9, Wrapped Ether (WETH))
- 717196 eth
- 0x07ee…3eca (Contract 1, Gemini, Exchange)
- 713078 eth
- 0x8315…ed3a
- 341270 eth
- 0xde0b…7bae (EthDev, Ethereum Foundation)
- 311850 eth
- 0xdf9e…3d7f (ActivePool)
- 305638 eth
- 0x4ddc…0ed5 (Compound Ether (cETH), Token Contract, CEther, DeFi, cETH Token)
- 238132 eth
- 0x756d…373c
- 236712 eth
- 0x8484…2b30 (EtherPredicateProxy, Ether Predicate Proxy, Ether Bridge, Polygon (Matic), Matic Network)
- 184592 eth
- 0x99c9…4be1 (L1ChugSplashProxy)
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.