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 24393223.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

29204246025
0x0de8…f628 (CoinTool_App)
25853415750
0xdac1…1ec7 (Stablecoin, TetherToken, Bitfinex, https://tether.to/, Token Contract, Tether USD (USDT))
21674831388
0x609e…124a
20863225824
0xabe0…0d13
20179771446
0x0645…6fb8 (XENCrypto)
19663960530
0xa0b8…eb48 (Stablecoin, https://www.centre.io/, FiatTokenProxy, USD Coin (USDC), Token Contract)
17056453290
0x0000…8a90 (PoolManager)
16145911281
0x4350…02dd (FiatTokenV2_2)
12555815124
0x0a25…fa59 (XENTorrent)
10100003457
0xc02a…6cc2 (Stablecoin, Wrapped Ether (WETH), WETH9, Token Contract, https://weth.io/, WrappedEther, 0x Ecosystem)
9593673849
0x9906…d086
9401575167
0x5e1f…48cc
8418961664
0x66a9…a8af (UniversalRouter)
7322132550
0xea9f…3712
7080679051
0xfbd4…4c37
6949833138
0xbbbb…ffcb (Morpho)
6764371642
0xde22…6ba3 (Unitroller)
6761361706
0x8505…aef2
6105310708
0x06cf…f5ef
6048893586
0xd226…9f89

By calls received

2238975
0x0d4a…1852
1501194
0x609e…124a
1489510
0x3c72…0391 (Comptroller)
1489510
0xde22…6ba3 (Unitroller)
1452843
0xdac1…1ec7 (Stablecoin, TetherToken, Bitfinex, https://tether.to/, Token Contract, Tether USD (USDT))
1347049
0xc02a…6cc2 (Stablecoin, Wrapped Ether (WETH), WETH9, Token Contract, https://weth.io/, WrappedEther, 0x Ecosystem)
1256737
0x4350…02dd (FiatTokenV2_2)
1251722
0xa0b8…eb48 (Stablecoin, https://www.centre.io/, FiatTokenProxy, USD Coin (USDC), Token Contract)
653588
0x0000…8a90 (PoolManager)
360752
0xe1be…8dbc

By calls emitted

3721907
0x609e…124a
2239569
0xde22…6ba3 (Unitroller)
1256303
0xa0b8…eb48 (Stablecoin, https://www.centre.io/, FiatTokenProxy, USD Coin (USDC), Token Contract)
734896
0xabe0…0d13
385682
0x66a9…a8af (UniversalRouter)
383540
0x0000…8a90 (PoolManager)
348119
0x0645…6fb8 (XENCrypto)
240630
0x5a1b…7a3a
240609
0xea9f…3712
211266
0x5e1f…48cc

By balance

74149157 eth
0x0000…05fa (DepositContract)
2587616 eth
0xc02a…6cc2 (Stablecoin, Wrapped Ether (WETH), WETH9, Token Contract, https://weth.io/, WrappedEther, 0x Ecosystem)
827844 eth
0x8315…ed3a
762248 eth
0x4904…e97e (Proxy)
525262 eth
0xafcd…c5da
302000 eth
0xa160…f291 (TornadoCash_eth, Tornado.cash, 100 ETH)
240008 eth
0x2208…3a9d
198587 eth
0x322b…4d43
163264 eth
0x3088…f216 (UUPSProxy)
99323 eth
0x8484…2b30 (Polygon (Matic), EtherPredicateProxy, Ether Predicate Proxy, Matic Network, Ether Bridge)

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.