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 11688102.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

21460938142
0x7a25…488d (Router 2, UniswapV2Router02)
9169702506
0xdac1…1ec7 (Tether USD (USDT), Stablecoin, TetherToken, https://tether.to/, Token Contract)
8300831662
0xe069…0c71 (Dex, 1inch.exchange, Router)
6900684092
0xc02a…6cc2 (https://weth.io/, WETH9, WrappedEther, 0x Ecosystem, Stablecoin, Wrapped Ether (WETH), Token Contract)
4462248889
0x1111…f3ae (Dex, 1inch.exchange v2, OneInchExchange)
2482674389
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, FiatTokenProxy, https://www.centre.io/, Token Contract)
2076855437
0xb727…78a2 (FiatTokenV2)
1711640983
0x0000…9f56
1704326622
0xd9e1…8b9f (UniswapV2Router02, SushiSwap)
1292116567
0xdef1…5eff (ZeroEx)
1161574769
0xc011…2a6f (DeFi, Synthetix Network Token (SNX), Payments, ProxyERC20)
1160737270
0x273c…4420
1045868027
0x0000…fa1c (1inch.exchange, ChiToken, CHI Token, Chi Gastoken by 1inch (CHI))
1033278668
0x881d…300c
1025519937
0x7fc6…dae9 (DeFi, Loans, Aave Token (AAVE), InitializableAdminUpgradeabilityProxy, AAVE Token)
996245847
0xc13e…ece8 (AaveTokenV2)
984589547
0xb4e1…c9dc
978816120
0x6b17…1d0f (DeFi, Dai Stablecoin (DAI), Maker, Token Contract)
907262859
0x080b…7712 (0x Ecosystem, Exchange v2.1, Zerox Exchange)
870702148
0x5b9e…4691 (WalletSimple)

By calls received

662834
0xc02a…6cc2 (https://weth.io/, WETH9, WrappedEther, 0x Ecosystem, Stablecoin, Wrapped Ether (WETH), Token Contract)
417562
0xdac1…1ec7 (Tether USD (USDT), Stablecoin, TetherToken, https://tether.to/, Token Contract)
196132
0x7a25…488d (Router 2, UniswapV2Router02)
145533
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, FiatTokenProxy, https://www.centre.io/, Token Contract)
145533
0xb727…78a2 (FiatTokenV2)
95237
0xe069…0c71 (Dex, 1inch.exchange, Router)
88491
0x6b17…1d0f (DeFi, Dai Stablecoin (DAI), Maker, Token Contract)
47230
0x5149…86ca (LinkToken, Token Contract, ChainLink Token)
47008
0x3dfd…76d3 (Aave, LendingPoolLiquidationManager, Loans, Lending Pool Core V1)
47008
0x5766…4948 (LendingPoolLiquidationManager)

By calls emitted

688130
0x7a25…488d (Router 2, UniswapV2Router02)
176768
0xe069…0c71 (Dex, 1inch.exchange, Router)
145533
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, FiatTokenProxy, https://www.centre.io/, Token Contract)
98215
0x0000…9f56
74574
0x3dfd…76d3 (Aave, LendingPoolLiquidationManager, Loans, Lending Pool Core V1)
70608
0x273c…4420
59815
0xc02a…6cc2 (https://weth.io/, WETH9, WrappedEther, 0x Ecosystem, Stablecoin, Wrapped Ether (WETH), Token Contract)
54932
0x0000…fa1c (1inch.exchange, ChiToken, CHI Token, Chi Gastoken by 1inch (CHI))
50511
0xd9e1…8b9f (UniswapV2Router02, SushiSwap)
49394
0x860b…8f66

By balance

5398669 eth
0xc02a…6cc2 (https://weth.io/, WETH9, WrappedEther, 0x Ecosystem, Stablecoin, Wrapped Ether (WETH), Token Contract)
2585922 eth
0x0000…05fa (DepositContract)
1036537 eth
0x4ddc…0ed5 (DeFi, Compound Ether (cETH), CEther, Token Contract)
806530 eth
0x07ee…3eca (Contract 1, Exchange, Gemini)
414541 eth
0x3dfd…76d3 (Aave, LendingPoolLiquidationManager, Loans, Lending Pool Core V1)
240000 eth
0x24d4…856f
164194 eth
0x2a54…5533
150732 eth
0xfd61…1884 (Pool1, Nexus Mutual)
109160 eth
0x6a11…6cca (Mooniswap)
104693 eth
0xbf4e…a754 (WithdrawDAO)

About

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

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