web/apps/base-docs/docs/contracts.md

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Contracts	/contracts	A list of contract addresses for various onchain apps, focusing on both the Base Mainnet and Base Testnet deployments.	onchain apps contract addresses Base Mainnet Uniswap v3 Multicall3 blockchain contracts decentralization cryptocurrency smart contracts	true

Contracts

This page lists contract addresses for onchain apps that we have deployed.

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Base Mainnet

Multicall3

Contract	Address
Multicall3	0xcA11bde05977b3631167028862bE2a173976CA11

Uniswap v3

Contract	Address
Permit2	0x000000000022D473030F116dDEE9F6B43aC78BA3
universal router	0x198EF79F1F515F02dFE9e3115eD9fC07183f02fC
v3CoreFactory	0x33128a8fC17869897dcE68Ed026d694621f6FDfD
multicall	0x091e99cb1C49331a94dD62755D168E941AbD0693
proxyAdmin	0x3334d83e224aF5ef9C2E7DDA7c7C98Efd9621fA9
tickLens	0x0CdeE061c75D43c82520eD998C23ac2991c9ac6d
nftDescriptor	0xF9d1077fd35670d4ACbD27af82652a8d84577d9F
nonfungibleTokenPositionDescriptor	0x4f225937EDc33EFD6109c4ceF7b560B2D6401009
descriptorProxy	0x4615C383F85D0a2BbED973d83ccecf5CB7121463
nonfungibleTokenPositionManager	0x03a520b32C04BF3bEEf7BEb72E919cf822Ed34f1
v3Migrator	0x23cF10b1ee3AdfCA73B0eF17C07F7577e7ACd2d7
v3Staker	0x42bE4D6527829FeFA1493e1fb9F3676d2425C3C1
quoterV2	0x3d4e44Eb1374240CE5F1B871ab261CD16335B76a
swapRouter	0x2626664c2603336E57B271c5C0b26F421741e481

Uniswap v2

Contract	Address
Factory	0x8909Dc15e40173Ff4699343b6eB8132c65e18eC6
Router	0x4752ba5dbc23f44d87826276bf6fd6b1c372ad24

Base Testnet (Sepolia)

Multicall3

Contract	Address
Multicall3	0xcA11bde05977b3631167028862bE2a173976CA11

Uniswap v3

Contract	Address
Permit2	0x000000000022d473030f116ddee9f6b43ac78ba3
universal router	0x050E797f3625EC8785265e1d9BDd4799b97528A1
v3CoreFactory	0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24
multicall	0xd867e273eAbD6c853fCd0Ca0bFB6a3aE6491d2C1
proxyAdmin	0xD7303474Baca835743B54D73799688990f24a79D
tickLens	0xedf6066a2b290C185783862C7F4776A2C8077AD1
nftDescriptor	0x4e0caFF1Df1cCd7CF782FDdeD77f020699B57f1a
nonfungibleTokenPositionDescriptor	0xd7c6e867591608D32Fe476d0DbDc95d0cf584c8F
nonfungibleTokenPositionManager	0x27F971cb582BF9E50F397e4d29a5C7A34f11faA2
v3Migrator	0xCbf8b7f80800bd4888Fbc7bf1713B80FE4E23E10
v3Staker	0x62725F55f50bdE240aCa3e740D47298CAc8d57D5
quoterV2	0xC5290058841028F1614F3A6F0F5816cAd0df5E27
swapRouter	0x94cC0AaC535CCDB3C01d6787D6413C739ae12bc4

Testnet interfaces

:::info

If you prefer interacting through a browser instead of directly with the contracts, you can try this community project: DapDap, which provides testnet interfaces for Uniswap contracts.

:::

Uniswap v2

Contract	Address
Factory	0x7Ae58f10f7849cA6F5fB71b7f45CB416c9204b1e
Router	0x1689E7B1F10000AE47eBfE339a4f69dECd19F602