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 20298511.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

19721386645
0x3fc9…7fad (UniversalRouter)
10595867008
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
7244803433
0xe37e…bd09
6367110569
0x7a25…488d (Router 2, UniswapV2Router02)
6316920099
0xdac1…1ec7 (https://tether.to/, Tether USD (USDT), Stablecoin, Token Contract, TetherToken, Bitfinex)
5004843702
0x1111…0582 (AggregationRouterV5)
3916698517
0x80a6…5d9e
3842466450
0x0a25…fa59 (XENTorrent)
3800978409
0x46af…a8b5
3543321562
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
3517309728
0x3328…9c49
3373416656
0x2414…d6cc
3127524174
0xdef1…5eff (ZeroEx, Zerox Exchange)
3083743334
0x0000…8ba3 (Permit2)
2914466209
0x0645…6fb8 (XENCrypto)
2834405972
0x4350…02dd (FiatTokenV2_2)
2817721510
0x881d…300c (Swap Router, MetaMask, MetaSwap)
2701532205
0x75cd…c5a5
2368479875
0x44a6…92a2 (TransformERC20Feature)
2208125833
0x68d3…0dc9

By calls received

1419335
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
304049
0xdac1…1ec7 (https://tether.to/, Tether USD (USDT), Stablecoin, Token Contract, TetherToken, Bitfinex)
220317
0x4350…02dd (FiatTokenV2_2)
220030
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
156006
0x3fc9…7fad (UniversalRouter)
122973
0xe37e…bd09
120194
0x4bba…4a4d (Math)
83672
0x7a25…488d (Router 2, UniswapV2Router02)
76641
0x0000…8ba3 (Permit2)
65615
0x0a25…fa59 (XENTorrent)

By calls emitted

963161
0x3fc9…7fad (UniversalRouter)
254525
0x7a25…488d (Router 2, UniswapV2Router02)
225783
0xe37e…bd09
221022
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
195289
0x80a6…5d9e
167706
0x3328…9c49
134640
0x06a9…b19a (ERC1967Proxy)
123471
0x1111…0582 (AggregationRouterV5)
120214
0x0645…6fb8 (XENCrypto)
106371
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)

By balance

47576124 eth
0x0000…05fa (DepositContract)
2745276 eth
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
1859526 eth
0x8315…ed3a
518129 eth
0x4904…e97e (Proxy)
498588 eth
0xbeb5…06ed (Proxy)
308273 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
285707 eth
0xafcd…c5da
213487 eth
0xd19d…876f
159476 eth
0x8484…2b30 (Polygon (Matic), Ether Predicate Proxy, Matic Network, EtherPredicateProxy, Ether Bridge)
155500 eth
0xdf9e…3d7f (ActivePool)

About

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

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