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 23094453.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

30946463213
0x0de8…f628 (CoinTool_App)
18052498773
0x0645…6fb8 (XENCrypto)
9932266406
0x66a9…a8af (UniversalRouter)
9412596980
0xc02a…6cc2 (0x Ecosystem, https://weth.io/, Stablecoin, Wrapped Ether (WETH), WETH9, WrappedEther, Token Contract)
8804705356
0xdac1…1ec7 (TetherToken, Bitfinex, Stablecoin, Tether USD (USDT), https://tether.to/, Token Contract)
7906588648
0xa0b8…eb48 (FiatTokenProxy, Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC))
7747288274
0x7a25…488d (Router 2, UniswapV2Router02)
6371686310
0x4350…02dd (FiatTokenV2_2)
6212820647
0x0000…2734 (AllowanceHolder)
5908950033
0x5418…7d61 (MainnetSettler)
5372086675
0x5141…a190
4117139006
0x0a25…fa59 (XENTorrent)
3875530900
0x0000…8a90 (PoolManager)
3299456003
0x6088…61d0 (DexRouter)
3135191633
0x5d28…338c (MerkleVester)
2695071767
0x1111…0582 (AggregationRouterV5)
2670124582
0x1231…4eae (LiFiDiamond)
2621107314
0x3328…9c49
2498553076
0x35fc…b34e
2343040490
0x8888…f946 (PendleRouterV4)

By calls received

1204926
0xc02a…6cc2 (0x Ecosystem, https://weth.io/, Stablecoin, Wrapped Ether (WETH), WETH9, WrappedEther, Token Contract)
487743
0x4350…02dd (FiatTokenV2_2)
487285
0xa0b8…eb48 (FiatTokenProxy, Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC))
456938
0xdac1…1ec7 (TetherToken, Bitfinex, Stablecoin, Tether USD (USDT), https://tether.to/, Token Contract)
378607
0x4bba…4a4d (Math)
193566
0x0645…6fb8 (XENCrypto)
146285
0x0000…8a90 (PoolManager)
114556
0x0de8…f628 (CoinTool_App)
95867
0x7a25…488d (Router 2, UniswapV2Router02)
95151
0xbbbb…ffcb (Morpho)

By calls emitted

506445
0x66a9…a8af (UniversalRouter)
489018
0xa0b8…eb48 (FiatTokenProxy, Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC))
378747
0x0645…6fb8 (XENCrypto)
309175
0x7a25…488d (Router 2, UniswapV2Router02)
229463
0x5418…7d61 (MainnetSettler)
208980
0x0de8…f628 (CoinTool_App)
138592
0x6088…61d0 (DexRouter)
136372
0x3328…9c49
135555
0x5141…a190
95690
0xc02a…6cc2 (0x Ecosystem, https://weth.io/, Stablecoin, Wrapped Ether (WETH), WETH9, WrappedEther, Token Contract)

By balance

63301302 eth
0x0000…05fa (DepositContract)
2646653 eth
0xc02a…6cc2 (0x Ecosystem, https://weth.io/, Stablecoin, Wrapped Ether (WETH), WETH9, WrappedEther, Token Contract)
1522390 eth
0x4904…e97e (Proxy)
919057 eth
0x8315…ed3a
369498 eth
0x61ed…6eea (Exchange, Cold Wallet, Gemini 3)
237794 eth
0xbeb5…06ed (Proxy)
208774 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
185456 eth
0x0bd4…a7a2
137872 eth
0x8484…2b30 (Polygon (Matic), Matic Network, EtherPredicateProxy, Ether Predicate Proxy, Ether Bridge)
132400 eth
0xa160…f291 (TornadoCash_eth, 100 ETH, Tornado.cash)

About

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

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