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 11090275.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

26187428720
0x7a25…488d (UniswapV2Router02, Router 2)
9664542666
0xdac1…1ec7 (https://tether.to/, TetherToken, Stablecoin, Token Contract, Tether USD (USDT))
7426928156
0xc02a…6cc2 (0x Ecosystem, Wrapped Ether (WETH), https://weth.io/, WrappedEther, Stablecoin, WETH9, Token Contract)
7081077573
0x0000…fa1c (ChiToken, Chi Gastoken by 1inch (CHI), 1inch.exchange, CHI Token)
3758970208
0xd33d…3be4
3687859761
0x728b…b344
1912639244
0x0ba4…a2e5 (Tellor Tributes (TRB), DeFi, Tellor (TT), TellorMaster, Tellor Token, Oracle, Token Contract)
1902253842
0x8041…3d38 (Tellor)
1899973487
0xe33c…fc85
1874262001
0x8a91…8508
1851163510
0xc468…7b78
1610905417
0xa0b8…eb48 (FiatTokenProxy, https://www.centre.io/, Stablecoin, Token Contract, USD Coin (USDC))
1444113089
0x9b43…b951
1329108181
0xb727…78a2 (FiatTokenV2)
1313092589
0x5acc…fb97 (High Risk, Forsage.io, SmartMatrixForsage)
1160461631
0x080b…7712 (Exchange v2.1, 0x Ecosystem)
1091441604
0x1111…a48b (Dex, 1inch.exchange, OneInchExchange)
935830006
0x5c69…aa6f (UniswapV2Factory, Factory Contract)
918210843
0x0d4a…1852
873208917
0x20ae…d3b6

By calls received

700793
0xc02a…6cc2 (0x Ecosystem, Wrapped Ether (WETH), https://weth.io/, WrappedEther, Stablecoin, WETH9, Token Contract)
451999
0xdac1…1ec7 (https://tether.to/, TetherToken, Stablecoin, Token Contract, Tether USD (USDT))
252509
0x7a25…488d (UniswapV2Router02, Router 2)
101061
0xb727…78a2 (FiatTokenV2)
101061
0xa0b8…eb48 (FiatTokenProxy, https://www.centre.io/, Stablecoin, Token Contract, USD Coin (USDC))
61794
0x5766…4948 (LendingPoolLiquidationManager)
61794
0x3dfd…76d3 (Aave, LendingPoolLiquidationManager, Lending Pool Core, Loans)
56251
0x6b17…1d0f (DeFi, Dai Stablecoin (DAI), Maker, Token Contract)
38636
0x1f98…f984 (Uni)
37411
0xa866…399e (KORE)

By calls emitted

875710
0x7a25…488d (UniswapV2Router02, Router 2)
209443
0x0000…fa1c (ChiToken, Chi Gastoken by 1inch (CHI), 1inch.exchange, CHI Token)
130402
0xe33c…fc85
101061
0xa0b8…eb48 (FiatTokenProxy, https://www.centre.io/, Stablecoin, Token Contract, USD Coin (USDC))
93451
0x3dfd…76d3 (Aave, LendingPoolLiquidationManager, Lending Pool Core, Loans)
77267
0xc02a…6cc2 (0x Ecosystem, Wrapped Ether (WETH), https://weth.io/, WrappedEther, Stablecoin, WETH9, Token Contract)
44829
0x728b…b344
44510
0x0d4a…1852
39183
0x082b…4ba6 (LendingPoolLiquidationManager)
37277
0xf0da…4c0c

By balance

7895234 eth
0xc02a…6cc2 (0x Ecosystem, Wrapped Ether (WETH), https://weth.io/, WrappedEther, Stablecoin, WETH9, Token Contract)
875186 eth
0x4ddc…0ed5 (DeFi, CEther, Compound Ether (cETH), Token Contract)
353728 eth
0xe977…67c2 (WorkLock)
349580 eth
0x3dfd…76d3 (Aave, LendingPoolLiquidationManager, Lending Pool Core, Loans)
193721 eth
0xfd61…1884 (Pool1, Nexus Mutual)
102669 eth
0x6ba3…c351 (MultiSigWalletWithDailyLimit)
81767 eth
0x2315…18f4 (MultiSigWalletWithDailyLimit)
54929 eth
0xf8a4…12e2 (PFET, PFeast)
54399 eth
0x2732…a3d5
36393 eth
0x2a0c…c208 (IDEX_1, Exchange, Dex, IDEX 1)

About

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

Thanks to my generous Ethereum hosting provider for a spot in his attic. Powered by a free-range Internet.