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 22372199.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

12777431344
0x0645…6fb8 (XENCrypto)
11490036268
0xdac1…1ec7 (Tether USD (USDT), Token Contract, Bitfinex, TetherToken, Stablecoin, https://tether.to/)
9058884096
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
8560745746
0x66a9…a8af (UniversalRouter)
8267616127
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, WrappedEther, WETH9, 0x Ecosystem)
7686449155
0x2f84…0479 (XenProxy)
7684164236
0xce2a…d7a2
7562817438
0x5141…a190
7306525947
0x4350…02dd (FiatTokenV2_2)
7051629433
0x0de8…f628 (CoinTool_App)
6620949673
0x0a25…fa59 (XENTorrent)
5812312550
0x1bc8…623e
5783093321
0x7a25…488d (Router 2, UniswapV2Router02)
5225748631
0x1231…4eae (LiFiDiamond)
4956816896
0x6aba…1b90
4914580840
0x6c27…af88
4687979853
0xb300…028d (Diamond)
4604779647
0x0000…2734 (AllowanceHolder)
4292637249
0x0d0e…428f (MainnetSettler)
4060505008
0x1111…2a65 (AggregationRouterV6)

By calls received

1126556
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, WrappedEther, WETH9, 0x Ecosystem)
637436
0xdac1…1ec7 (Tether USD (USDT), Token Contract, Bitfinex, TetherToken, Stablecoin, https://tether.to/)
571199
0x4350…02dd (FiatTokenV2_2)
569813
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
257230
0x4bba…4a4d (Math)
143686
0x0000…8a90 (PoolManager)
133081
0x0645…6fb8 (XENCrypto)
91185
0x5141…a190
85197
0x66a9…a8af (UniversalRouter)
72697
0x7a25…488d (Router 2, UniswapV2Router02)

By calls emitted

572128
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
417222
0x66a9…a8af (UniversalRouter)
257266
0x0645…6fb8 (XENCrypto)
231019
0x7a25…488d (Router 2, UniswapV2Router02)
169121
0x0d0e…428f (MainnetSettler)
162498
0x5141…a190
114215
0x1231…4eae (LiFiDiamond)
104534
0x1111…0582 (AggregationRouterV5)
99906
0x1111…2a65 (AggregationRouterV6)
97088
0xa7ca…b22a (SmartVault)

By balance

60673436 eth
0x0000…05fa (DepositContract)
2868452 eth
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, WrappedEther, WETH9, 0x Ecosystem)
1778715 eth
0x4904…e97e (Proxy)
1006905 eth
0x8315…ed3a
302330 eth
0xbeb5…06ed (Proxy)
208712 eth
0xafcd…c5da
155555 eth
0x8484…2b30 (Ether Bridge, Matic Network, Polygon (Matic), EtherPredicateProxy, Ether Predicate Proxy)
129322 eth
0x0bd4…a7a2
129195 eth
0xbed1…11f6 (TransparentUpgradeableProxy)
122900 eth
0xa160…f291 (TornadoCash_eth, 100 ETH, Tornado.cash)

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.