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 22186181.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

10456345998
0xdac1…1ec7 (Bitfinex, Token Contract, Tether USD (USDT), TetherToken, https://tether.to/, Stablecoin)
8928655608
0x66a9…a8af (UniversalRouter)
8405621623
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
7634485094
0xc02a…6cc2 (WETH9, https://weth.io/, Token Contract, WrappedEther, 0x Ecosystem, Wrapped Ether (WETH), Stablecoin)
7218413287
0x5141…a190
6765528506
0x4350…02dd (FiatTokenV2_2)
5390514038
0x0645…6fb8 (XENCrypto)
3882979361
0x0000…2734 (AllowanceHolder)
3878546303
0x0de8…f628 (CoinTool_App)
3778137154
0x7a25…488d (UniswapV2Router02, Router 2)
3614526768
0x0d0e…428f (MainnetSettler)
3360891164
0x1111…2a65 (AggregationRouterV6)
2951661569
0x1111…0582 (AggregationRouterV5)
2600068843
0x2f84…0479 (XenProxy)
2599482427
0xce2a…d7a2
2569435956
0x881d…300c (MetaMask, MetaSwap, Swap Router)
2403895268
0x0000…8a90 (PoolManager)
2337876512
0x1231…4eae (LiFiDiamond)
2277323255
0x0a25…fa59 (XENTorrent)
2002233791
0x74de…6631 (Spender)

By calls received

1036075
0xc02a…6cc2 (WETH9, https://weth.io/, Token Contract, WrappedEther, 0x Ecosystem, Wrapped Ether (WETH), Stablecoin)
523881
0xdac1…1ec7 (Bitfinex, Token Contract, Tether USD (USDT), TetherToken, https://tether.to/, Stablecoin)
496915
0x4350…02dd (FiatTokenV2_2)
496053
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
335371
0x2715…4f41
155927
0x4caf…a6f3
139362
0xa8f4…40c7
104302
0x5b1b…81dd (TokenState)
104264
0x4bba…4a4d (Math)
103651
0x0000…8a90 (PoolManager)

By calls emitted

497794
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
437822
0x66a9…a8af (UniversalRouter)
256907
0xc832…06fc
204779
0x912d…732a
182564
0xc5f0…3504 (Synthetix)
181526
0xe00b…11e0
178045
0x2c21…63a0
144246
0x5141…a190
141586
0x0d0e…428f (MainnetSettler)
136291
0x7a25…488d (UniswapV2Router02, Router 2)

By balance

59524510 eth
0x0000…05fa (DepositContract)
2875791 eth
0xc02a…6cc2 (WETH9, https://weth.io/, Token Contract, WrappedEther, 0x Ecosystem, Wrapped Ether (WETH), Stablecoin)
1698756 eth
0x4904…e97e (Proxy)
1104269 eth
0x8315…ed3a
483799 eth
0xbeb5…06ed (Proxy)
318063 eth
0xc61b…193c
217774 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
165002 eth
0x8484…2b30 (Ether Predicate Proxy, Matic Network, EtherPredicateProxy, Polygon (Matic), Ether Bridge)
128500 eth
0xa160…f291 (Tornado.cash, TornadoCash_eth, 100 ETH)
122720 eth
0xbed1…11f6 (TransparentUpgradeableProxy)

About

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

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