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 11344210.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

17972977070
0x7a25…488d (UniswapV2Router02, Router 2)
9451826209
0xdac1…1ec7 (Tether USD (USDT), Token Contract, Stablecoin, https://tether.to/, TetherToken)
5979814618
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, WrappedEther, 0x Ecosystem, WETH9)
3952650027
0xe4e8…5b75
3483349565
0x0000…9f56
2909310072
0xa0b8…eb48 (FiatTokenProxy, USD Coin (USDC), Token Contract, Stablecoin, https://www.centre.io/)
2476758104
0xb727…78a2 (FiatTokenV2)
1995088216
0x1111…f3ae (OneInchExchange, Dex, 1inch.exchange v2)
1803610114
0x398e…d119 (LendingPoolLiquidationManager, Lending Pool, Aave)
1789774111
0x0177…f423 (LendingPool)
1669710856
0x3dfd…76d3 (LendingPoolLiquidationManager, Loans, Aave, Lending Pool Core)
1635161726
0x01aa…b71c
1484677591
0x1e04…4e4e (Main dYdX contract, DeFi, SoloMargin, Solo Margin)
1349325232
0x5766…4948 (LendingPoolLiquidationManager)
1318755468
0x080b…7712 (Zerox Exchange, 0x Ecosystem, Exchange v2.1)
1293408516
0x5acc…fb97 (SmartMatrixForsage, High Risk, Forsage.io)
1215159716
0x56e7…1ee1 (SoloMargin library containing operation functions, dYdX, OperationImpl, Operation Impl, IPriceOracle)
1157392402
0x082b…4ba6 (LendingPoolLiquidationManager)
1147644084
0x6085…61fe (LendingPoolLiquidationManager)
1103560060
0xf5b0…cb8d (Axie (AXIE), Axie Token, https://axieinfinity.com/, Gaming, Token Contract, Collectibles, AxieCore)

By calls received

583267
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, WrappedEther, 0x Ecosystem, WETH9)
425763
0xdac1…1ec7 (Tether USD (USDT), Token Contract, Stablecoin, https://tether.to/, TetherToken)
175679
0x7a25…488d (UniswapV2Router02, Router 2)
155117
0xa0b8…eb48 (FiatTokenProxy, USD Coin (USDC), Token Contract, Stablecoin, https://www.centre.io/)
155117
0xb727…78a2 (FiatTokenV2)
116646
0x3dfd…76d3 (LendingPoolLiquidationManager, Loans, Aave, Lending Pool Core)
116646
0x5766…4948 (LendingPoolLiquidationManager)
95321
0x6b17…1d0f (Dai Stablecoin (DAI), Token Contract, DeFi, Maker)
48564
0xf5b0…cb8d (Axie (AXIE), Axie Token, https://axieinfinity.com/, Gaming, Token Contract, Collectibles, AxieCore)
42898
0x5149…86ca (Token Contract, LinkToken, ChainLink Token)

By calls emitted

599396
0x7a25…488d (UniswapV2Router02, Router 2)
185203
0x3dfd…76d3 (LendingPoolLiquidationManager, Loans, Aave, Lending Pool Core)
171088
0x0000…9f56
155117
0xa0b8…eb48 (FiatTokenProxy, USD Coin (USDC), Token Contract, Stablecoin, https://www.centre.io/)
87587
0x082b…4ba6 (LendingPoolLiquidationManager)
80799
0x0000…fa1c (ChiToken, 1inch.exchange, Chi Gastoken by 1inch (CHI), CHI Token)
64396
0xe4e8…5b75
60195
0x3d98…cd3b (comptroller, Unitroller, Comptroller, Compound)
58754
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, WrappedEther, 0x Ecosystem, WETH9)
46150
0x0d4a…1852

By balance

5292719 eth
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, WrappedEther, 0x Ecosystem, WETH9)
1235544 eth
0x4ddc…0ed5 (Token Contract, DeFi, CEther, Compound Ether (cETH))
791104 eth
0x0000…05fa (DepositContract)
418443 eth
0x3dfd…76d3 (LendingPoolLiquidationManager, Loans, Aave, Lending Pool Core)
287461 eth
0xe977…67c2 (WorkLock)
194634 eth
0x7da8…6cf9 (MultiSigWallet, Golem_MultiSig, ICO Wallets)
156556 eth
0xfd61…1884 (Nexus Mutual, Pool1)
75034 eth
0x2732…a3d5 (KeepBonding)
68842 eth
0x1522…e428 (Exchange Wallet, Bitstamp 2)
62885 eth
0x878f…140b (HegicETHPool)

About

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

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