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 22363925.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

19595443695
0x0645…6fb8 (XENCrypto)
12678960974
0x0a25…fa59 (XENTorrent)
12133318857
0x0de8…f628 (CoinTool_App)
10186200831
0xdac1…1ec7 (Tether USD (USDT), Token Contract, Bitfinex, TetherToken, Stablecoin, https://tether.to/)
8666038649
0x66a9…a8af (UniversalRouter)
7756552059
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, WrappedEther, WETH9, 0x Ecosystem)
7625585237
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
7199219113
0x5141…a190
6218203976
0x4350…02dd (FiatTokenV2_2)
6048312821
0x2f84…0479 (XenProxy)
6046486501
0xce2a…d7a2
5920687385
0x6aba…1b90
5870534757
0x6c27…af88
5667805161
0x1231…4eae (LiFiDiamond)
5399034344
0xb300…028d (Diamond)
4769338926
0x7a25…488d (Router 2, UniswapV2Router02)
4585252352
0x1bc8…623e
4537080028
0x0000…2734 (AllowanceHolder)
4512871757
0x7c81…c0ec (LiFiProxyFacet)
4236622434
0x0d0e…428f (MainnetSettler)

By calls received

1062304
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, WrappedEther, WETH9, 0x Ecosystem)
602645
0xdac1…1ec7 (Tether USD (USDT), Token Contract, Bitfinex, TetherToken, Stablecoin, https://tether.to/)
506896
0x4350…02dd (FiatTokenV2_2)
506338
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
432438
0x4bba…4a4d (Math)
221187
0x0645…6fb8 (XENCrypto)
142719
0x0000…8a90 (PoolManager)
86110
0x66a9…a8af (UniversalRouter)
85679
0x5141…a190
67097
0xbbbb…ffcb (Morpho)

By calls emitted

508401
0xa0b8…eb48 (FiatTokenProxy, Token Contract, USD Coin (USDC), Stablecoin, https://www.centre.io/)
432486
0x0645…6fb8 (XENCrypto)
419152
0x66a9…a8af (UniversalRouter)
197279
0x7a25…488d (Router 2, UniswapV2Router02)
163158
0x0d0e…428f (MainnetSettler)
153406
0x5141…a190
119068
0x1231…4eae (LiFiDiamond)
103202
0x1111…2a65 (AggregationRouterV6)
102497
0xb300…028d (Diamond)
98944
0x1111…0582 (AggregationRouterV5)

By balance

60641104 eth
0x0000…05fa (DepositContract)
2804340 eth
0xc02a…6cc2 (Wrapped Ether (WETH), https://weth.io/, Token Contract, Stablecoin, WrappedEther, WETH9, 0x Ecosystem)
1775655 eth
0x4904…e97e (Proxy)
1001836 eth
0x8315…ed3a
302360 eth
0xbeb5…06ed (Proxy)
215774 eth
0xde0b…7bae (Ethereum Foundation, EthDev)
208712 eth
0xafcd…c5da
154353 eth
0x8484…2b30 (Ether Bridge, Matic Network, Polygon (Matic), EtherPredicateProxy, Ether Predicate Proxy)
129355 eth
0x5970…8fd2
128929 eth
0xbed1…11f6 (TransparentUpgradeableProxy)

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.