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 22541211.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

11281231542
0xdac1…1ec7 (https://tether.to/, Token Contract, Bitfinex, TetherToken, Stablecoin, Tether USD (USDT))
11226756433
0x66a9…a8af (UniversalRouter)
10993707890
0xc02a…6cc2 (Token Contract, WrappedEther, Stablecoin, https://weth.io/, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
9618110450
0xa0b8…eb48 (Token Contract, https://www.centre.io/, Stablecoin, USD Coin (USDC), FiatTokenProxy)
8872930123
0x7a25…488d (UniswapV2Router02, Router 2)
7735168341
0x4350…02dd (FiatTokenV2_2)
7022381023
0x5141…a190
5731090451
0x0000…2734 (AllowanceHolder)
5431575974
0x5418…7d61 (MainnetSettler)
4879500160
0x0de8…f628 (CoinTool_App)
3897345185
0x1111…0582 (AggregationRouterV5)
3789020045
0x0000…8a90 (PoolManager)
3496642188
0x1111…2a65 (AggregationRouterV6)
3147924276
0x881d…300c (MetaMask, Swap Router, MetaSwap)
2970603998
0x3328…9c49
2844876554
0x35fc…b34e
2608457055
0x0645…6fb8 (XENCrypto)
2419736984
0x74de…6631 (Spender)
2353248061
0x80a6…5d9e
2318407251
0x6088…61d0 (DexRouter)

By calls received

1453189
0xc02a…6cc2 (Token Contract, WrappedEther, Stablecoin, https://weth.io/, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
581899
0xdac1…1ec7 (https://tether.to/, Token Contract, Bitfinex, TetherToken, Stablecoin, Tether USD (USDT))
579310
0x4350…02dd (FiatTokenV2_2)
578000
0xa0b8…eb48 (Token Contract, https://www.centre.io/, Stablecoin, USD Coin (USDC), FiatTokenProxy)
165987
0x0000…8a90 (PoolManager)
114364
0x4bba…4a4d (Math)
101392
0x66a9…a8af (UniversalRouter)
98339
0x7a25…488d (UniswapV2Router02, Router 2)
90409
0x5141…a190
81819
0xbbbb…ffcb (Morpho)

By calls emitted

580118
0xa0b8…eb48 (Token Contract, https://www.centre.io/, Stablecoin, USD Coin (USDC), FiatTokenProxy)
558149
0x66a9…a8af (UniversalRouter)
320792
0x7a25…488d (UniswapV2Router02, Router 2)
203428
0x5418…7d61 (MainnetSettler)
167534
0x5141…a190
143340
0x3328…9c49
122988
0x80a6…5d9e
115359
0xc02a…6cc2 (Token Contract, WrappedEther, Stablecoin, https://weth.io/, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
114398
0x0645…6fb8 (XENCrypto)
102054
0x1111…0582 (AggregationRouterV5)

By balance

61647240 eth
0x0000…05fa (DepositContract)
2754685 eth
0xc02a…6cc2 (Token Contract, WrappedEther, Stablecoin, https://weth.io/, Wrapped Ether (WETH), WETH9, 0x Ecosystem)
1828427 eth
0x4904…e97e (Proxy)
1132636 eth
0x8315…ed3a
261346 eth
0xbeb5…06ed (Proxy)
250774 eth
0x0bd4…a7a2
223712 eth
0xafcd…c5da
193957 eth
0x889e…f9b1 (OssifiableProxy)
138689 eth
0x3088…f216 (UUPSProxy)
133126 eth
0x8484…2b30 (Polygon (Matic), EtherPredicateProxy, Ether Bridge, Ether Predicate Proxy, Matic Network)

About

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

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