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 19660639.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

21378321580
0x3fc9…7fad (UniversalRouter)
8781035598
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
7833848612
0xe37e…bd09
6796494583
0xdac1…1ec7 (https://tether.to/, Tether USD (USDT), Stablecoin, Token Contract, TetherToken, Bitfinex)
6285480379
0x1111…0582 (AggregationRouterV5)
4328799251
0xdef1…5eff (ZeroEx, Zerox Exchange)
4226159258
0x0645…6fb8 (XENCrypto)
3963813034
0x881d…300c (Swap Router, MetaMask, MetaSwap)
3864887546
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
3829079611
0x0a25…fa59 (XENTorrent)
3338478238
0x0000…8ba3 (Permit2)
3141267167
0x74de…6631
3067829970
0x4350…02dd (FiatTokenV2_2)
2868838844
0x44a6…92a2 (TransformERC20Feature)
2540456598
0x7a25…488d (Router 2, UniswapV2Router02)
2214446904
0x22f9…8c18 (FlashWallet)
2094339656
0x0de8…f628 (CoinTool_App)
2075752929
0x6774…b367 (TransparentUpgradeableProxy)
1966180721
0x7cdf…e313
1961421918
0x0000…68a0 (PendleRouterV3)

By calls received

1212685
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
360461
0xdac1…1ec7 (https://tether.to/, Tether USD (USDT), Stablecoin, Token Contract, TetherToken, Bitfinex)
244861
0x4350…02dd (FiatTokenV2_2)
244793
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
191210
0x4bba…4a4d (Math)
165642
0x3fc9…7fad (UniversalRouter)
112427
0xe37e…bd09
101606
0x0645…6fb8 (XENCrypto)
80633
0x0000…8ba3 (Permit2)
66287
0xebae…8e01

By calls emitted

988973
0x3fc9…7fad (UniversalRouter)
245359
0xa0b8…eb48 (USD Coin (USDC), Stablecoin, https://www.centre.io/, Token Contract, FiatTokenProxy)
199582
0xe37e…bd09
191328
0x0645…6fb8 (XENCrypto)
163726
0x1111…0582 (AggregationRouterV5)
143959
0xdef1…5eff (ZeroEx, Zerox Exchange)
115265
0x22f9…8c18 (FlashWallet)
109512
0x7a25…488d (Router 2, UniswapV2Router02)
94648
0x74de…6631
87568
0x6774…b367 (TransparentUpgradeableProxy)

By balance

43647001 eth
0x0000…05fa (DepositContract)
3053649 eth
0xc02a…6cc2 (WrappedEther, https://weth.io/, Stablecoin, Token Contract, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
1698685 eth
0x8315…ed3a
424019 eth
0xbeb5…06ed (Proxy)
380056 eth
0x4904…e97e (Proxy)
310273 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
217617 eth
0xdf9e…3d7f (ActivePool)
164883 eth
0x8484…2b30 (Polygon (Matic), Ether Predicate Proxy, Matic Network, EtherPredicateProxy, Ether Bridge)
162464 eth
0x3240…0324 (DiamondProxy)
162034 eth
0x7da8…6cf9 (Golem_MultiSig, MultiSigWallet, ICO Wallets)

About

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

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