Reference

Address book

Keep the addresses you look up over and over, labelled and searchable.

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Known contracts

Canonical, widely published deployments per chain. Every address links straight to the chain's block explorer so you can confirm before you use it.

Search by name, category or address.

Ethereum· ETH19 entriesEtherscan
Token
WETH9
0xC02aaA…756Cc2

Canonical wrapped Ether (18 decimals).

USDC
0xA0b869…06eB48

Circle USD Coin (6 decimals).

USDT
0xdAC17F…831ec7

Tether USD (6 decimals).

DAI
0x6B1754…271d0F

MakerDAO Dai stablecoin (18 decimals).

WBTC
0x2260FA…c2C599

Wrapped Bitcoin (8 decimals).

stETH (Lido)
0xae7ab9…D7fE84

Lido staked Ether, rebasing (18 decimals).

UNI
0x1f9840…01F984

Uniswap governance token (18 decimals).

LINK
0x514910…F986CA

Chainlink token (18 decimals).

DEX
Uniswap V2 Factory
0x5C69bE…c5aA6f

Creates and indexes Uniswap V2 pairs.

Uniswap V2 Router 02
0x7a250d…F2488D

The classic V2 swap/liquidity router.

Uniswap V3 SwapRouter02
0x68b346…65Fc45

V2+V3 multicall swap router used by the Uniswap interface.

Uniswap V3 NonfungiblePositionManager
0xC36442…11FE88

Mints and manages V3 liquidity positions as ERC-721s.

Uniswap V3 Factory
0x1F9843…31F984

Deploys and indexes V3 pools. Same address on Ethereum, Arbitrum, OP and Polygon.

Uniswap QuoterV2
0x61fFE0…30B21e

Off-chain quoting helper (simulates a swap via a revert).

Lending
Aave V3 Pool
0x87870B…4fA4E2

Aave V3 Ethereum market entry point (supply / borrow / repay).

Infrastructure
Multicall3
0xcA11bd…76CA11

Batches many read calls into a single eth_call. Same address on most chains.

Permit2
0x000000…C78BA3

Uniswap's signature-based token approval router. Deterministic address.

Deterministic Deployment Proxy (CREATE2)
0x4e59b4…B4956C

Arachnid's keyless CREATE2 factory used by Foundry's deterministic deploys.

Naming
ENS Registry
0x000000…7d2e1e

The ENS root registry — owner + resolver for every node.

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This is your personal shortlist — the wallets and contracts you look up again and again, labelled so you don't have to hunt them down each time. Add one above, or save a known contract from the list above.