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 21373598.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

15577142423
0x3fc9…7fad (UniversalRouter)
9064411687
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
8147421244
0xdac1…1ec7 (https://tether.to/, Tether USD (USDT), Stablecoin, Token Contract, TetherToken, Bitfinex)
6227237083
0x3451…e812
4874627481
0x1111…0582 (AggregationRouterV5)
4850909540
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
4582200000
0x4b38…7a6f (TokenTableMerkleDistributor)
4514823168
0x9f99…30a9 (TokenTableMerkleDistributor)
4130968125
0x0000…2734 (AllowanceHolder)
4002150545
0x70bf…4710 (MainnetSettler)
3880398229
0x4350…02dd (FiatTokenV2_2)
3632628420
0x881d…300c (Swap Router, MetaMask, MetaSwap)
3367321781
0x3073…3073 (TransparentUpgradeableProxy)
2807282743
0x74de…6631 (Spender)
2803879637
0x7a25…488d (Router 2, UniswapV2Router02)
2796359098
0x0000…8ba3 (Permit2)
2774424025
0x1e1b…7e9c (MOVEToken)
2423490174
0x1111…2a65 (AggregationRouterV6)
2238329104
0xdef1…5eff (ZeroEx, Zerox Exchange)
1854310978
0xa9d1…3e43

By calls received

1208878
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
387748
0xdac1…1ec7 (https://tether.to/, Tether USD (USDT), Stablecoin, Token Contract, TetherToken, Bitfinex)
275898
0x4350…02dd (FiatTokenV2_2)
275546
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
138876
0x3fc9…7fad (UniversalRouter)
136310
0x3073…3073 (TransparentUpgradeableProxy)
135745
0x1e1b…7e9c (MOVEToken)
96345
0x3451…e812
89328
0x0000…eca4 (Cult)
80122
0xd031…7c93 (MDCreate2)

By calls emitted

691302
0x3fc9…7fad (UniversalRouter)
276315
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
237930
0x4b38…7a6f (TokenTableMerkleDistributor)
167422
0x3451…e812
157814
0x70bf…4710 (MainnetSettler)
135744
0x3073…3073 (TransparentUpgradeableProxy)
132012
0x1111…0582 (AggregationRouterV5)
120946
0x7a25…488d (Router 2, UniswapV2Router02)
104952
0x06a9…b19a (ERC1967Proxy)
92486
0x74de…6631 (Spender)

By balance

54354141 eth
0x0000…05fa (DepositContract)
2757166 eth
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
1103316 eth
0x8315…ed3a
981181 eth
0x4904…e97e (Proxy)
522813 eth
0xbeb5…06ed (Proxy)
269274 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
229207 eth
0xafcd…c5da
187078 eth
0x0c23…1f2d
152130 eth
0x8484…2b30 (Polygon (Matic), Ether Predicate Proxy, Matic Network, EtherPredicateProxy, Ether Bridge)
137300 eth
0xa160…f291 (TornadoCash_eth, 100 ETH, Tornado.cash)

About

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

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