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 14071054.
You can also simulate arbitrary calls.
Top active contracts
Aggregate measures over the last 10000 blocks.
By gas usage
- 19422877864
- 0x7be8…d12b (OwnableDelegateProxy, OpenSea.io, Collectibles, NFT, Marketplace, WyvernExchange)
- 15041795606
- 0x68b3…fc45 (SwapRouter02)
- 7840404003
- 0xf9e2…79f2 (AuthenticatedProxy, OwnableDelegateProxy)
- 7463877515
- 0xfbdd…e655
- 7316994896
- 0x4161…486b (ServiceV18)
- 4985600320
- 0xc02a…6cc2 (Wrapped Ether (WETH), Token Contract, https://weth.io/, Stablecoin, 0x Ecosystem, WrappedEther, WETH9)
- 4737683631
- 0xa540…77c1 (OpenSea.io_Registry, OwnableDelegateProxy, WyvernProxyRegistry)
- 4280811226
- 0xdac1…1ec7 (Bitfinex, Tether USD (USDT), TetherToken, https://tether.to/, Token Contract, Stablecoin)
- 4000370692
- 0xa0b8…eb48 (USD Coin (USDC), https://www.centre.io/, Token Contract, Stablecoin, FiatTokenProxy)
- 3204111274
- 0xa232…bdcf (FiatTokenV2_1)
- 2827515260
- 0x1111…097d (AggregationRouterV4)
- 2786144537
- 0xe6cd…5ef8
- 2696229897
- 0x4f0b…867a
- 2692895032
- 0x881d…300c (Swap Router, MetaMask)
- 2692694642
- 0x7a25…488d (Router 2, UniswapV2Router02)
- 2458488076
- 0xdef1…5eff (Zerox Exchange, ZeroEx)
- 2243028192
- 0x220b…96d4
- 2086821534
- 0x74de…6631
- 2041817868
- 0xe592…1564 (SwapRouter)
- 1957181167
- 0xd152…2150 (Disperse)
By calls received
- 558548
- 0xc02a…6cc2 (Wrapped Ether (WETH), Token Contract, https://weth.io/, Stablecoin, 0x Ecosystem, WrappedEther, WETH9)
- 355249
- 0xa540…77c1 (OpenSea.io_Registry, OwnableDelegateProxy, WyvernProxyRegistry)
- 191620
- 0xa232…bdcf (FiatTokenV2_1)
- 191619
- 0xa0b8…eb48 (USD Coin (USDC), https://www.centre.io/, Token Contract, Stablecoin, FiatTokenProxy)
- 180143
- 0xdac1…1ec7 (Bitfinex, Tether USD (USDT), TetherToken, https://tether.to/, Token Contract, Stablecoin)
- 135191
- 0x68b3…fc45 (SwapRouter02)
- 130904
- 0x7be8…d12b (OwnableDelegateProxy, OpenSea.io, Collectibles, NFT, Marketplace, WyvernExchange)
- 118619
- 0xf9e2…79f2 (AuthenticatedProxy, OwnableDelegateProxy)
- 93718
- 0xbc53…0de1
- 92763
- 0x1a50…b812
By calls emitted
- 434469
- 0x7be8…d12b (OwnableDelegateProxy, OpenSea.io, Collectibles, NFT, Marketplace, WyvernExchange)
- 314715
- 0x68b3…fc45 (SwapRouter02)
- 272754
- 0xfbdd…e655
- 191620
- 0xa0b8…eb48 (USD Coin (USDC), https://www.centre.io/, Token Contract, Stablecoin, FiatTokenProxy)
- 184757
- 0x1a50…b812
- 140012
- 0xcf0c…6a2e
- 94865
- 0xdef1…5eff (Zerox Exchange, ZeroEx)
- 94456
- 0x7a25…488d (Router 2, UniswapV2Router02)
- 88944
- 0x3d66…ef8b
- 77040
- 0x7d27…c7a9 (InitializableImmutableAdminUpgradeabilityProxy)
By balance
- 9190226 eth
- 0x0000…05fa (DepositContract)
- 8210367 eth
- 0xc02a…6cc2 (Wrapped Ether (WETH), Token Contract, https://weth.io/, Stablecoin, 0x Ecosystem, WrappedEther, WETH9)
- 1261503 eth
- 0x4ddc…0ed5 (Token Contract, cETH Token, CEther, Compound Ether (cETH), DeFi)
- 929498 eth
- 0x61ed…6eea (Gemini 3, Exchange, Cold Wallet)
- 586353 eth
- 0xdc24…7022 (Vyper_contract)
- 533607 eth
- 0x8484…2b30 (Ether Bridge, Ether Predicate Proxy, Polygon (Matic), Matic Network, EtherPredicateProxy)
- 458823 eth
- 0x011b…d515 (Arbitrum, TransparentUpgradeableProxy, Layer 2, Bridge)
- 411071 eth
- 0xdf9e…3d7f (ActivePool)
- 330756 eth
- 0xa929…490c (Bridge)
- 207949 eth
- 0x0c23…1f2d
About
An experiment by palkeo. Feel free to contact me at oko@palkeo.com.
Thanks to my generous Ethereum hosting provider for a spot in his attic. Powered by a free-range Internet.