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 15634585.

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.

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