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 16550219.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

26475827146
0x68b3…fc45 (SwapRouter02)
14414308712
0x0645…6fb8 (XENCrypto)
12400551518
0x0000…e581 (Seaport)
12227054372
0x0a25…fa59 (XENTorrent)
11426143787
0x0de8…f628 (CoinTool_App)
8446788747
0x7a25…488d (UniswapV2Router02, Router 2)
6558087478
0x0000…5127 (ERC1967Proxy)
6483581336
0xb388…c8f5 (BlurExchange)
6386400093
0xc02a…6cc2 (https://weth.io/, Token Contract, WETH9, Stablecoin, 0x Ecosystem, WrappedEther, Wrapped Ether (WETH))
5347943522
0x1e00…3c71 (Conduit)
5069804375
0xdac1…1ec7 (Token Contract, https://tether.to/, TetherToken, Stablecoin, Tether USD (USDT), Bitfinex)
3287237508
0xa0b8…eb48 (Token Contract, https://www.centre.io/, Stablecoin, FiatTokenProxy, USD Coin (USDC))
2933916872
0x5322…3f20
2817116914
0x1111…0582 (AggregationRouterV5)
2705571856
0xa232…bdcf (FiatTokenV2_1)
2185478190
0x881d…300c (MetaMask, Swap Router)
1889293596
0xc364…fe88 (NonfungiblePositionManager)
1692113036
0x74de…6631
1657227653
0x7c74…e01c (ERC721Drop)
1558403076
0x44e9…f162 (ERC1155LazyPayableClaim)

By calls received

748226
0xc02a…6cc2 (https://weth.io/, Token Contract, WETH9, Stablecoin, 0x Ecosystem, WrappedEther, Wrapped Ether (WETH))
314533
0x4bba…4a4d (Math)
223881
0xdac1…1ec7 (Token Contract, https://tether.to/, TetherToken, Stablecoin, Tether USD (USDT), Bitfinex)
215570
0x68b3…fc45 (SwapRouter02)
172594
0xa232…bdcf (FiatTokenV2_1)
172537
0xa0b8…eb48 (Token Contract, https://www.centre.io/, Stablecoin, FiatTokenProxy, USD Coin (USDC))
164122
0x0645…6fb8 (XENCrypto)
101404
0x0000…cd4e (OperatorFilterRegistry)
99261
0x004c…0c00 (PausableZone)
92844
0x7a25…488d (UniswapV2Router02, Router 2)

By calls emitted

546574
0x68b3…fc45 (SwapRouter02)
314536
0x0645…6fb8 (XENCrypto)
281678
0x7a25…488d (UniswapV2Router02, Router 2)
208633
0x0000…e581 (Seaport)
172455
0xa0b8…eb48 (Token Contract, https://www.centre.io/, Stablecoin, FiatTokenProxy, USD Coin (USDC))
139051
0x1e00…3c71 (Conduit)
118420
0x0000…5127 (ERC1967Proxy)
74515
0x0de8…f628 (CoinTool_App)
73034
0x0a25…fa59 (XENTorrent)
65925
0x1111…0582 (AggregationRouterV5)

By balance

15953015 eth
0x0000…05fa (DepositContract)
3860271 eth
0xc02a…6cc2 (https://weth.io/, Token Contract, WETH9, Stablecoin, 0x Ecosystem, WrappedEther, Wrapped Ether (WETH))
824477 eth
0x8315…ed3a
343511 eth
0xdf9e…3d7f (ActivePool)
337271 eth
0xde0b…7bae (EthDev, Ethereum Foundation)
304383 eth
0x4ddc…0ed5 (CEther, cETH Token, Compound Ether (cETH), Token Contract, DeFi)
296188 eth
0xdc24…7022 (Vyper_contract)
262097 eth
0x8484…2b30 (Polygon (Matic), Ether Predicate Proxy, Ether Bridge, Matic Network, EtherPredicateProxy)
240712 eth
0x99c9…4be1 (L1ChugSplashProxy)
98190 eth
0xcafe…d12b (Pool)

About

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

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