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 22511073.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

12878250080
0x0645…6fb8 (XENCrypto)
10075922474
0x66a9…a8af (UniversalRouter)
9873501318
0xc02a…6cc2 (Token Contract, WrappedEther, Stablecoin, https://weth.io/, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
9447460777
0xdac1…1ec7 (https://tether.to/, Token Contract, Bitfinex, TetherToken, Stablecoin, Tether USD (USDT))
9205689946
0x0a25…fa59 (XENTorrent)
9117551668
0x0de8…f628 (CoinTool_App)
8421168439
0x7a25…488d (UniswapV2Router02, Router 2)
7886771650
0xa0b8…eb48 (Token Contract, https://www.centre.io/, Stablecoin, USD Coin (USDC), FiatTokenProxy)
6480675812
0x5141…a190
6375873568
0x4350…02dd (FiatTokenV2_2)
5307558102
0x0000…2734 (AllowanceHolder)
5010005850
0x5418…7d61 (MainnetSettler)
3522070117
0x1111…0582 (AggregationRouterV5)
3432841865
0x156a…6672 (DexRouter)
3282694835
0x1111…2a65 (AggregationRouterV6)
3183518858
0x0000…8a90 (PoolManager)
2747350762
0x881d…300c (MetaMask, Swap Router, MetaSwap)
2509545077
0x2f84…0479 (XenProxy)
2508783460
0xce2a…d7a2
2354297856
0x1097…b362

By calls received

1299806
0xc02a…6cc2 (Token Contract, WrappedEther, Stablecoin, https://weth.io/, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
485119
0xdac1…1ec7 (https://tether.to/, Token Contract, Bitfinex, TetherToken, Stablecoin, Tether USD (USDT))
480543
0x4350…02dd (FiatTokenV2_2)
479225
0xa0b8…eb48 (Token Contract, https://www.centre.io/, Stablecoin, USD Coin (USDC), FiatTokenProxy)
305862
0x4bba…4a4d (Math)
156642
0x0645…6fb8 (XENCrypto)
137086
0x0000…8a90 (PoolManager)
97565
0xbbbb…ffcb (Morpho)
90861
0x7a25…488d (UniswapV2Router02, Router 2)
89140
0x66a9…a8af (UniversalRouter)

By calls emitted

496174
0x66a9…a8af (UniversalRouter)
481308
0xa0b8…eb48 (Token Contract, https://www.centre.io/, Stablecoin, USD Coin (USDC), FiatTokenProxy)
305950
0x0645…6fb8 (XENCrypto)
292223
0x7a25…488d (UniswapV2Router02, Router 2)
186801
0x5418…7d61 (MainnetSettler)
158266
0x5141…a190
144621
0x156a…6672 (DexRouter)
103520
0x06a9…b19a (ERC1967Proxy)
101347
0xc02a…6cc2 (Token Contract, WrappedEther, Stablecoin, https://weth.io/, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
101208
0x3328…9c49

By balance

61514892 eth
0x0000…05fa (DepositContract)
2732817 eth
0xc02a…6cc2 (Token Contract, WrappedEther, Stablecoin, https://weth.io/, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
1818447 eth
0x4904…e97e (Proxy)
1113725 eth
0x8315…ed3a
255108 eth
0xbeb5…06ed (Proxy)
243819 eth
0x0bd4…a7a2
219712 eth
0xafcd…c5da
173691 eth
0x3088…f216 (UUPSProxy)
132263 eth
0x8484…2b30 (Polygon (Matic), EtherPredicateProxy, Ether Bridge, Ether Predicate Proxy, Matic Network)
128200 eth
0xa160…f291 (TornadoCash_eth, Tornado.cash, 100 ETH)

About

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

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