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 13505986.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

24320404272
0x7a25…488d (UniswapV2Router02, Router 2)
8810048668
0xc02a…6cc2 (Stablecoin, Token Contract, https://weth.io/, WrappedEther, WETH9, Wrapped Ether (WETH), 0x Ecosystem)
8552477169
0xe592…1564 (SwapRouter)
7707480652
0x7be8…d12b (OwnableDelegateProxy, OpenSea.io, Collectibles, Marketplace, NFT, WyvernExchange)
7029667076
0xdac1…1ec7 (Bitfinex, Stablecoin, Token Contract, Tether USD (USDT), TetherToken, https://tether.to/)
4686722314
0x1111…aa26 (1inch.exchange, 1inch V3, AggregationRouterV3)
4331180492
0x2723…1fd2
3693091118
0x881d…300c (Swap Router, MetaMask)
3594666603
0xa0b8…eb48 (FiatTokenProxy, Stablecoin, Token Contract, https://www.centre.io/, USD Coin (USDC))
3226806992
0xf9e2…79f2 (OwnableDelegateProxy, AuthenticatedProxy)
2930196158
0x74de…6631
2888593597
0xa232…bdcf (FiatTokenV2_1)
2627093812
0x95ad…c4ce
2605627598
0xdef1…5eff (ZeroEx)
2408502820
0xfbdd…e655
2362359272
0x4161…486b (ServiceV18)
2329262021
0xd9e1…8b9f (SushiSwap, UniswapV2Router02)
2275300149
0x1fff…b9fd
2028243372
0x9cbf…de23
2001198908
0x7fc6…dae9 (AAVE Token, InitializableAdminUpgradeabilityProxy, DeFi, Aave Token (AAVE), Loans)

By calls received

961742
0xc02a…6cc2 (Stablecoin, Token Contract, https://weth.io/, WrappedEther, WETH9, Wrapped Ether (WETH), 0x Ecosystem)
267358
0xdac1…1ec7 (Bitfinex, Stablecoin, Token Contract, Tether USD (USDT), TetherToken, https://tether.to/)
197000
0x7a25…488d (UniswapV2Router02, Router 2)
155028
0xa232…bdcf (FiatTokenV2_1)
155015
0xa0b8…eb48 (FiatTokenProxy, Stablecoin, Token Contract, https://www.centre.io/, USD Coin (USDC))
149694
0x95ad…c4ce
134695
0xa540…77c1 (OwnableDelegateProxy, OpenSea.io_Registry, WyvernProxyRegistry)
118855
0xe592…1564 (SwapRouter)
69031
0x2723…1fd2
68090
0x8b31…f73f (SaitamaInu)

By calls emitted

710236
0x7a25…488d (UniswapV2Router02, Router 2)
162737
0x7be8…d12b (OwnableDelegateProxy, OpenSea.io, Collectibles, Marketplace, NFT, WyvernExchange)
155017
0xa0b8…eb48 (FiatTokenProxy, Stablecoin, Token Contract, https://www.centre.io/, USD Coin (USDC))
154298
0xe592…1564 (SwapRouter)
122652
0x1111…aa26 (1inch.exchange, 1inch V3, AggregationRouterV3)
121614
0x2723…1fd2
98395
0xdef1…5eff (ZeroEx)
88201
0xfbdd…e655
81554
0x9cbf…de23
80402
0x74de…6631

By balance

8236251 eth
0xc02a…6cc2 (Stablecoin, Token Contract, https://weth.io/, WrappedEther, WETH9, Wrapped Ether (WETH), 0x Ecosystem)
8024546 eth
0x0000…05fa (DepositContract)
1506659 eth
0x4ddc…0ed5 (cETH Token, Token Contract, DeFi, CEther, Compound Ether (cETH))
540973 eth
0xdc24…7022 (Vyper_contract)
420459 eth
0x8484…2b30 (Matic Network, EtherPredicateProxy, Ether Predicate Proxy, Polygon (Matic), Ether Bridge)
419062 eth
0xdf9e…3d7f (ActivePool)
411787 eth
0xa929…490c (Bridge)
325343 eth
0x011b…d515 (Arbitrum, TransparentUpgradeableProxy, Layer 2, Bridge)
224074 eth
0xbddf…12be
198972 eth
0x1db9…fcf4

About

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

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