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 22179830.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

10570556190
0xdac1…1ec7 (Bitfinex, Token Contract, Tether USD (USDT), TetherToken, https://tether.to/, Stablecoin)
8877202594
0x66a9…a8af (UniversalRouter)
8611730974
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
7967829876
0x0645…6fb8 (XENCrypto)
7872357204
0xc02a…6cc2 (WETH9, https://weth.io/, Token Contract, WrappedEther, 0x Ecosystem, Wrapped Ether (WETH), Stablecoin)
7819372245
0x5141…a190
7257009673
0x0a25…fa59 (XENTorrent)
6920368240
0x4350…02dd (FiatTokenV2_2)
6532307877
0x0de8…f628 (CoinTool_App)
4162612285
0x7a25…488d (UniswapV2Router02, Router 2)
3802614461
0x0000…2734 (AllowanceHolder)
3572014471
0x0d0e…428f (MainnetSettler)
3430301500
0x1111…2a65 (AggregationRouterV6)
3047447246
0x1111…0582 (AggregationRouterV5)
2584165811
0x881d…300c (MetaMask, MetaSwap, Swap Router)
2368954610
0x1231…4eae (LiFiDiamond)
2305272468
0x0000…8a90 (PoolManager)
2015326867
0x74de…6631 (Spender)
1945205884
0x0000…0e49
1933105711
0xc011…2a6f (ProxyERC20, DeFi, Payments, Synthetix Network Token (SNX))

By calls received

1072486
0xc02a…6cc2 (WETH9, https://weth.io/, Token Contract, WrappedEther, 0x Ecosystem, Wrapped Ether (WETH), Stablecoin)
546865
0xdac1…1ec7 (Bitfinex, Token Contract, Tether USD (USDT), TetherToken, https://tether.to/, Stablecoin)
530389
0x4350…02dd (FiatTokenV2_2)
529682
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
356343
0x2715…4f41
158446
0xa8f4…40c7
156025
0x4caf…a6f3
143467
0x4bba…4a4d (Math)
127398
0xbbbb…ffcb (Morpho)
105952
0x1816…57d5

By calls emitted

532063
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
427404
0x66a9…a8af (UniversalRouter)
271285
0x1036…41dc
246782
0x912d…732a
203849
0x9300…4c1e
200601
0x9b03…6f54
176782
0xc5f0…3504 (Synthetix)
165560
0xe65c…df3d
151373
0x5141…a190
151216
0x7a25…488d (UniswapV2Router02, Router 2)

By balance

59450868 eth
0x0000…05fa (DepositContract)
2895254 eth
0xc02a…6cc2 (WETH9, https://weth.io/, Token Contract, WrappedEther, 0x Ecosystem, Wrapped Ether (WETH), Stablecoin)
1692254 eth
0x4904…e97e (Proxy)
1094673 eth
0x8315…ed3a
483430 eth
0xbeb5…06ed (Proxy)
217774 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
187707 eth
0xafcd…c5da
164165 eth
0x8484…2b30 (Ether Predicate Proxy, Matic Network, EtherPredicateProxy, Polygon (Matic), Ether Bridge)
131500 eth
0xa160…f291 (Tornado.cash, TornadoCash_eth, 100 ETH)
122772 eth
0xd7f9…b2cb (TransparentUpgradeableProxy)

About

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

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