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 19725575.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

23649665993
0x3fc9…7fad (UniversalRouter)
10423457098
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
7128867775
0xdac1…1ec7 (https://tether.to/, Tether USD (USDT), Stablecoin, Token Contract, TetherToken, Bitfinex)
5197755414
0xe37e…bd09
4899013330
0x1111…0582 (AggregationRouterV5)
4002029659
0x7a25…488d (Router 2, UniswapV2Router02)
3794130561
0xdef1…5eff (ZeroEx, Zerox Exchange)
3749643088
0x0000…8ba3 (Permit2)
3513632794
0x881d…300c (Swap Router, MetaMask, MetaSwap)
3420866822
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
3057631219
0x6774…b367 (TransparentUpgradeableProxy)
2864207167
0x7298…7fb6 (L1ScrollMessenger)
2760043692
0x74de…6631
2714375170
0x4350…02dd (FiatTokenV2_2)
2616222859
0x0000…68a0 (PendleRouterV3)
2579636680
0x3328…9c49
2506368493
0x44a6…92a2 (TransformERC20Feature)
2474680309
0x2414…d6cc
2458289175
0x0de8…f628 (CoinTool_App)
2236056249
0x80a6…5d9e

By calls received

1407883
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
334616
0xdac1…1ec7 (https://tether.to/, Tether USD (USDT), Stablecoin, Token Contract, TetherToken, Bitfinex)
202852
0x3fc9…7fad (UniversalRouter)
201259
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
201203
0x4350…02dd (FiatTokenV2_2)
97952
0x0d7e…af9b
97947
0xebae…8e01 (L1MessageQueueWithGasPriceOracle)
97704
0x4bba…4a4d (Math)
97126
0x0000…8ba3 (Permit2)
88600
0xe37e…bd09

By calls emitted

1110917
0x3fc9…7fad (UniversalRouter)
201700
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
158184
0xe37e…bd09
155132
0x7a25…488d (Router 2, UniswapV2Router02)
143604
0x1111…0582 (AggregationRouterV5)
128773
0x6774…b367 (TransparentUpgradeableProxy)
126170
0xdef1…5eff (ZeroEx, Zerox Exchange)
122752
0x3328…9c49
111074
0x80a6…5d9e
108480
0xf3de…9127

By balance

44044972 eth
0x0000…05fa (DepositContract)
3068994 eth
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
1720988 eth
0x8315…ed3a
434840 eth
0xbeb5…06ed (Proxy)
395411 eth
0x4904…e97e (Proxy)
367707 eth
0xafcd…c5da
310273 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
221021 eth
0xdf9e…3d7f (ActivePool)
175383 eth
0x3240…0324 (DiamondProxy)
164032 eth
0x8484…2b30 (Polygon (Matic), Ether Predicate Proxy, Matic Network, EtherPredicateProxy, Ether Bridge)

About

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

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