Oko contract explorer

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 15375604.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

27853047389
0x68b3…fc45 (SwapRouter02)
14697772728
0x0000…e581 (Seaport)
6466935681
0x1e00…3c71 (Conduit)
6170933522
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, 0x Ecosystem, WETH9, WrappedEther)
5726208896
0x7a25…488d (Router 2, UniswapV2Router02)
4462356119
0xdac1…1ec7 (Bitfinex, Token Contract, Stablecoin, Tether USD (USDT), TetherToken, https://tether.to/)
3944244892
0xa0b8…eb48 (https://www.centre.io/, Token Contract, Stablecoin, USD Coin (USDC), FiatTokenProxy)
3653713660
0x83c8…aba2 (GemSwap)
3439389249
0x1111…097d (AggregationRouterV4)
3184438489
0xa232…bdcf (FiatTokenV2_1)
2991559362
0x283a…b7f5 (ETHRegistrarController, ENS, ETH Registrar Controller)
2491140295
0xcd80…6d56 (LSSVMPairMissingEnumerableETH)
2484189166
0x881d…300c (Swap Router, MetaMask)
2482691850
0x7431…eed3
2378300603
0x6d78…ed88 (X2Y2_r1)
2182912408
0xdef1…5eff (Zerox Exchange, ZeroEx)
2143360427
0xc364…fe88 (NonfungiblePositionManager)
2040092273
0xf2f4…b8a8
1996291056
0x2b2e…8329 (LSSVMRouter)
1931326787
0x74de…6631

By calls received

711998
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, 0x Ecosystem, WETH9, WrappedEther)
228531
0x68b3…fc45 (SwapRouter02)
210660
0xa232…bdcf (FiatTokenV2_1)
210595
0xa0b8…eb48 (https://www.centre.io/, Token Contract, Stablecoin, USD Coin (USDC), FiatTokenProxy)
189092
0xdac1…1ec7 (Bitfinex, Token Contract, Stablecoin, Tether USD (USDT), TetherToken, https://tether.to/)
112973
0x004c…0c00 (PausableZone)
102918
0x0000…e581 (Seaport)
86374
0x57f1…ea85 (Base Registrar Implementation, Ethereum Name Service (ENS), BaseRegistrarImplementation)
79782
0x1e00…3c71 (Conduit)
77105
0x0000…2e1e (ENSRegistryWithFallback, Registry with Fallback)

By calls emitted

564521
0x68b3…fc45 (SwapRouter02)
248376
0x0000…e581 (Seaport)
210531
0xa0b8…eb48 (https://www.centre.io/, Token Contract, Stablecoin, USD Coin (USDC), FiatTokenProxy)
203585
0x7a25…488d (Router 2, UniswapV2Router02)
148411
0x1e00…3c71 (Conduit)
113540
0x283a…b7f5 (ETHRegistrarController, ENS, ETH Registrar Controller)
83237
0xdef1…5eff (Zerox Exchange, ZeroEx)
73247
0x1111…097d (AggregationRouterV4)
64156
0x7431…eed3
63048
0x88e6…5640

By balance

13334646 eth
0x0000…05fa (DepositContract)
4033786 eth
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, 0x Ecosystem, WETH9, WrappedEther)
710731 eth
0x011b…d515 (TransparentUpgradeableProxy, Layer 2, Bridge, Arbitrum)
471115 eth
0x4ddc…0ed5 (CEther, cETH Token, Compound Ether (cETH), Token Contract, DeFi)
349832 eth
0x8484…2b30 (Ether Bridge, Ether Predicate Proxy, Matic Network, Polygon (Matic), EtherPredicateProxy)
329016 eth
0xdf9e…3d7f (ActivePool)
223014 eth
0xa929…490c (Bridge)
215325 eth
0x99c9…4be1 (L1ChugSplashProxy)
213929 eth
0xdc24…7022 (Vyper_contract)
210037 eth
0xbddf…12be

About

An experiment by palkeo. Feel free to contact me at oko@palkeo.com.

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