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 18202840.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

15192794659
0x0645…6fb8 (XENCrypto)
14395067344
0x3fc9…7fad (UniversalRouter)
10929386072
0x7a25…488d (Router 2, UniswapV2Router02)
9330558048
0xcc46…aadd
8364332779
0xc02a…6cc2 (WETH9, Stablecoin, https://weth.io/, WrappedEther, 0x Ecosystem, Token Contract, Wrapped Ether (WETH))
7019074800
0x1069…8333
6289631927
0x0a25…fa59 (XENTorrent)
5261920042
0x3240…0324 (DiamondProxy)
4809353862
0xdac1…1ec7 (TetherToken, Stablecoin, Bitfinex, Token Contract, Tether USD (USDT), https://tether.to/)
4354130764
0x0de8…f628 (CoinTool_App)
3599446682
0x0df1…65d7
3096726285
0x3db5…d919 (ValidatorTimelock)
2727000447
0x0000…8ba3 (Permit2)
2669618447
0x1111…0582 (AggregationRouterV5)
2660416883
0x7ed0…330b (ExecutorFacet)
2397042043
0xdb58…3216
2384823380
0x0000…14dc (Seaport)
2257026778
0x62aa…68ef (MailboxFacet)
1958284515
0xa0b8…eb48 (Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC), FiatTokenProxy)
1909670413
0x881d…300c (Swap Router, MetaSwap, MetaMask)

By calls received

1029190
0xc02a…6cc2 (WETH9, Stablecoin, https://weth.io/, WrappedEther, 0x Ecosystem, Token Contract, Wrapped Ether (WETH))
320640
0x4bba…4a4d (Math)
206904
0xdac1…1ec7 (TetherToken, Stablecoin, Bitfinex, Token Contract, Tether USD (USDT), https://tether.to/)
163727
0x0645…6fb8 (XENCrypto)
134402
0x3fc9…7fad (UniversalRouter)
121083
0x7a25…488d (Router 2, UniswapV2Router02)
98072
0xa232…bdcf (FiatTokenV2_1)
98058
0xa0b8…eb48 (Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC), FiatTokenProxy)
59700
0x0000…8ba3 (Permit2)
54900
0x1069…8333

By calls emitted

594871
0x3fc9…7fad (UniversalRouter)
424574
0x7a25…488d (Router 2, UniswapV2Router02)
320718
0x0645…6fb8 (XENCrypto)
109800
0xcc46…aadd
97998
0xa0b8…eb48 (Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC), FiatTokenProxy)
89758
0xc02a…6cc2 (WETH9, Stablecoin, https://weth.io/, WrappedEther, 0x Ecosystem, Token Contract, Wrapped Ether (WETH))
87371
0x3240…0324 (DiamondProxy)
75597
0xdb58…3216
74345
0x1111…0582 (AggregationRouterV5)
55098
0xdef1…5eff (ZeroEx, Zerox Exchange)

By balance

30187338 eth
0x0000…05fa (DepositContract)
3157729 eth
0xc02a…6cc2 (WETH9, Stablecoin, https://weth.io/, WrappedEther, 0x Ecosystem, Token Contract, Wrapped Ether (WETH))
1217610 eth
0x8315…ed3a
396829 eth
0xdf9e…3d7f (ActivePool)
317273 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
291203 eth
0x4ddc…0ed5 (DeFi, Token Contract, CEther, cETH Token, Compound Ether (cETH))
275586 eth
0xbeb5…06ed (Proxy)
244001 eth
0x2208…3a9d
205649 eth
0x8484…2b30 (Ether Bridge, Polygon (Matic), Ether Predicate Proxy, Matic Network, EtherPredicateProxy)
191589 eth
0x3240…0324 (DiamondProxy)

About

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

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