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 17437083.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

13360022237
0x7a25…488d (Router 2, UniswapV2Router02)
12699613242
0x3fc9…7fad (UniversalRouter)
10472543614
0xc02a…6cc2 (0x Ecosystem, WrappedEther, Wrapped Ether (WETH), https://weth.io/, Stablecoin, Token Contract, WETH9)
7405002427
0x0645…6fb8 (XENCrypto)
6395670874
0xef1c…bf6b (UniversalRouter)
5811474266
0xdac1…1ec7 (Tether USD (USDT), Stablecoin, TetherToken, Token Contract, https://tether.to/, Bitfinex)
4199934519
0x0000…5127 (ERC1967Proxy)
4152479478
0x983e…862d (BlurExchange)
3982687404
0x3240…0324 (DiamondProxy)
3947709985
0x7bf4…89e6
3820534500
0x1069…8333
3390800687
0x0000…8ba3 (Permit2)
3388320305
0x1111…0582 (AggregationRouterV5)
3224869412
0x68b3…fc45 (SwapRouter02)
3180055903
0x0000…14dc (Seaport)
2499598706
0x881d…300c (MetaSwap, Swap Router, MetaMask)
2482865431
0x0a25…fa59 (XENTorrent)
2448066906
0x4190…c291
2299513977
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, Token Contract, https://www.centre.io/, FiatTokenProxy)
2152930277
0xb209…7867 (MailboxFacet)

By calls received

1241411
0xc02a…6cc2 (0x Ecosystem, WrappedEther, Wrapped Ether (WETH), https://weth.io/, Stablecoin, Token Contract, WETH9)
239171
0xdac1…1ec7 (Tether USD (USDT), Stablecoin, TetherToken, Token Contract, https://tether.to/, Bitfinex)
163595
0x4bba…4a4d (Math)
143746
0x7a25…488d (Router 2, UniswapV2Router02)
131839
0x3fc9…7fad (UniversalRouter)
114089
0xa232…bdcf (FiatTokenV2_1)
113880
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, Token Contract, https://www.centre.io/, FiatTokenProxy)
87532
0x0000…8ba3 (Permit2)
84501
0x0645…6fb8 (XENCrypto)
62724
0xef1c…bf6b (UniversalRouter)

By calls emitted

506028
0x3fc9…7fad (UniversalRouter)
501755
0x7a25…488d (Router 2, UniswapV2Router02)
251467
0xef1c…bf6b (UniversalRouter)
163780
0x0645…6fb8 (XENCrypto)
113788
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, Token Contract, https://www.centre.io/, FiatTokenProxy)
105575
0xc02a…6cc2 (0x Ecosystem, WrappedEther, Wrapped Ether (WETH), https://weth.io/, Stablecoin, Token Contract, WETH9)
100548
0x1111…0582 (AggregationRouterV5)
88307
0x68b3…fc45 (SwapRouter02)
80161
0x3240…0324 (DiamondProxy)
78395
0x0000…5127 (ERC1967Proxy)

By balance

24478600 eth
0x0000…05fa (DepositContract)
3405161 eth
0xc02a…6cc2 (0x Ecosystem, WrappedEther, Wrapped Ether (WETH), https://weth.io/, Stablecoin, Token Contract, WETH9)
1094682 eth
0x8315…ed3a
393568 eth
0xdf9e…3d7f (ActivePool)
318272 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
299601 eth
0xdc24…7022 (Vyper_contract)
295092 eth
0xbeb5…06ed
293288 eth
0x99c9…4be1 (L1ChugSplashProxy)
270740 eth
0x4ddc…0ed5 (Compound Ether (cETH), cETH Token, DeFi, Token Contract, CEther)
222562 eth
0x8484…2b30 (Ether Predicate Proxy, Matic Network, Ether Bridge, EtherPredicateProxy, Polygon (Matic))

About

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

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