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 22923754.

You can also simulate arbitrary calls.

Top active contracts

Aggregate measures over the last 10000 blocks.

By gas usage

13690781457
0x66a9…a8af (UniversalRouter)
11732198117
0xc02a…6cc2 (0x Ecosystem, https://weth.io/, Stablecoin, Wrapped Ether (WETH), WETH9, WrappedEther, Token Contract)
10487700729
0xdac1…1ec7 (TetherToken, Bitfinex, Stablecoin, Tether USD (USDT), https://tether.to/, Token Contract)
10044113082
0xa0b8…eb48 (FiatTokenProxy, Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC))
9240136973
0x7a25…488d (Router 2, UniswapV2Router02)
8091852006
0x4350…02dd (FiatTokenV2_2)
7457677925
0x5141…a190
6374064341
0x0000…2734 (AllowanceHolder)
5974472237
0x5418…7d61 (MainnetSettler)
4918176786
0x0000…8a90 (PoolManager)
4634865421
0x1111…0582 (AggregationRouterV5)
3742694030
0x1111…2a65 (AggregationRouterV6)
3686693734
0x6088…61d0 (DexRouter)
3511903895
0x881d…300c (MetaSwap, MetaMask, Swap Router)
3345071145
0x3328…9c49
3199472810
0x35fc…b34e
2712387507
0x74de…6631 (Spender)
2567311505
0x0000…8ba3 (Permit2)
2417172520
0x0de8…f628 (CoinTool_App)
2372898625
0x3c11…1646 (Swapper)

By calls received

1541551
0xc02a…6cc2 (0x Ecosystem, https://weth.io/, Stablecoin, Wrapped Ether (WETH), WETH9, WrappedEther, Token Contract)
617579
0x4350…02dd (FiatTokenV2_2)
616761
0xa0b8…eb48 (FiatTokenProxy, Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC))
556398
0xdac1…1ec7 (TetherToken, Bitfinex, Stablecoin, Tether USD (USDT), https://tether.to/, Token Contract)
205016
0x0000…8a90 (PoolManager)
124977
0xbbbb…ffcb (Morpho)
121748
0x66a9…a8af (UniversalRouter)
106362
0x7a25…488d (Router 2, UniswapV2Router02)
101574
0x5141…a190
80199
0x5418…7d61 (MainnetSettler)

By calls emitted

673349
0x66a9…a8af (UniversalRouter)
619170
0xa0b8…eb48 (FiatTokenProxy, Stablecoin, https://www.centre.io/, Token Contract, USD Coin (USDC))
340570
0x7a25…488d (Router 2, UniswapV2Router02)
225184
0x5418…7d61 (MainnetSettler)
185929
0x5141…a190
165592
0x3328…9c49
161819
0x6088…61d0 (DexRouter)
149505
0xa7ca…b22a (SmartVault)
123056
0xc02a…6cc2 (0x Ecosystem, https://weth.io/, Stablecoin, Wrapped Ether (WETH), WETH9, WrappedEther, Token Contract)
122055
0x1111…0582 (AggregationRouterV5)

By balance

61852102 eth
0x0000…05fa (DepositContract)
2832435 eth
0xc02a…6cc2 (0x Ecosystem, https://weth.io/, Stablecoin, Wrapped Ether (WETH), WETH9, WrappedEther, Token Contract)
1831715 eth
0x4904…e97e (Proxy)
1154369 eth
0x8315…ed3a
369498 eth
0x61ed…6eea (Exchange, Cold Wallet, Gemini 3)
318063 eth
0xc61b…193c
306276 eth
0x3bfc…0258 (ICO Wallets, Polkadot_MultiSig, Parity Bug)
263867 eth
0xbeb5…06ed (Proxy)
240000 eth
0x2208…3a9d
218031 eth
0x0bd4…a7a2

About

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

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