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 20090645.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

20101797862
0x3fc9…7fad (UniversalRouter)
10022704987
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
6975442794
0xdac1…1ec7 (https://tether.to/, Tether USD (USDT), Stablecoin, Token Contract, TetherToken, Bitfinex)
4302555339
0x7a25…488d (Router 2, UniswapV2Router02)
4253468818
0xdef1…5eff (ZeroEx, Zerox Exchange)
3634467194
0xe37e…bd09
3322253277
0x44a6…92a2 (TransformERC20Feature)
3249113562
0x0000…8ba3 (Permit2)
3242133834
0x7ca5…07ca (Distributor1)
3163538004
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
3024565817
0x1111…0582 (AggregationRouterV5)
3019052745
0x3328…9c49
3010608382
0x80a6…5d9e
2918752091
0x46af…a8b5
2892258831
0x2414…d6cc
2859494129
0xbe0e…226b (AethirToken)
2842615536
0x881d…300c (Swap Router, MetaMask, MetaSwap)
2531965266
0x22f9…8c18 (FlashWallet)
2520298755
0x4350…02dd (FiatTokenV2_2)
2334064739
0x68d3…0dc9

By calls received

1297703
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
320241
0xdac1…1ec7 (https://tether.to/, Tether USD (USDT), Stablecoin, Token Contract, TetherToken, Bitfinex)
197470
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
197412
0x4350…02dd (FiatTokenV2_2)
169989
0xbe0e…226b (AethirToken)
169038
0x3fc9…7fad (UniversalRouter)
98712
0x7613…f8dc
84947
0x0000…8ba3 (Permit2)
68434
0x22f9…8c18 (FlashWallet)
61302
0x7a25…488d (Router 2, UniswapV2Router02)

By calls emitted

974349
0x3fc9…7fad (UniversalRouter)
197743
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
166505
0x7a25…488d (Router 2, UniswapV2Router02)
162948
0x06a9…b19a (ERC1967Proxy)
154026
0x80a6…5d9e
147562
0x3328…9c49
140330
0x22f9…8c18 (FlashWallet)
137775
0xdef1…5eff (ZeroEx, Zerox Exchange)
105862
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
102964
0x1111…0582 (AggregationRouterV5)

By balance

46259428 eth
0x0000…05fa (DepositContract)
2908874 eth
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
1784673 eth
0x8315…ed3a
501066 eth
0x4904…e97e (Proxy)
492180 eth
0xbeb5…06ed (Proxy)
309273 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
197034 eth
0xd19d…876f
175756 eth
0x3088…f216 (UUPSProxy)
161168 eth
0x8484…2b30 (Polygon (Matic), Ether Predicate Proxy, Matic Network, EtherPredicateProxy, Ether Bridge)
153651 eth
0xdf9e…3d7f (ActivePool)

About

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

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