Contract Addresses

CRITICAL: Never hallucinate a contract address. Wrong addresses mean lost funds. If an address isn't listed here, look it up on the block explorer or the protocol's official docs before using it.

Last Verified: March 3, 2026 (all addresses verified onchain via eth_getCode + eth_call + symbol() + latestAnswer()). Exception: the Robinhood Chain section was added August 19, 2026 and verified onchain via cast call/cast code (Alchemy RPC) August 20, 2026.

Stablecoins

USDC (Circle) — Native

USDT (Tether)

DAI (MakerDAO)

Wrapped ETH (WETH)

Liquid Staking

Lido — wstETH (Wrapped stETH)

Lido — Staking & Withdrawal

Rocket Pool

DeFi Protocols

Uniswap

V2 (Mainnet)

V3 (Mainnet)

V3 Multi-Chain

V4 (Live Since January 31, 2025)

⚠️ V4 addresses are DIFFERENT per chain — unlike V3, they are NOT deterministic CREATE2 deploys. Do not assume the same address works cross-chain.

V4 Multi-Chain

Universal Router (V4 — Current)

Universal Router (V3 — Legacy)

Permit2 (Universal Token Approval)

Used by Uniswap Universal Router and many other protocols. Same address on all chains (CREATE2).

Verified on: Mainnet, Arbitrum, Base, Optimism (identical bytecode on all).

UNI Token

1inch Aggregation Router

Use aggregators for best swap prices — they route across all DEXs.

V6 (Current — same address on all chains via CREATE2)

V5 (Legacy)

MakerDAO / Sky

sDAI is an ERC-4626 vault — deposit DAI, earn DSR automatically. Check current rate via pot.dsr().

Aave

V2 (Mainnet - Legacy)

V3 (Mainnet)

V3 Multi-Chain

Compound

V2 (Mainnet - Legacy)

V3 Comet (USDC Markets)

Curve Finance (Mainnet)

Balancer V2 (Mainnet)

NFT & Marketplaces

OpenSea Seaport

Multi-chain via CREATE2 (Ethereum, Polygon, Arbitrum, Optimism, Base).

ENS (Mainnet)

Infrastructure

Safe (Gnosis Safe)

Account Abstraction (ERC-4337)

All EVM chains (CREATE2).

Chainlink

Mainnet

Additional Mainnet Feeds

All feeds confirmed returning live prices via latestAnswer() (Mar 3, 2026). ETH/USD: ~$1,988, BTC/USD: ~$68,256.

ETH/USD Price Feeds (Multi-Chain)

LINK Token (Multi-Chain)

EigenLayer (Mainnet)

Restaking protocol. Both are upgradeable proxies (EIP-1967).

Source: eigenlayer.xyz

Chainlink CCIP Router (v1.2.0)

Cross-chain messaging. Call typeAndVersion() to confirm — returns "Router 1.2.0".

Source: docs.chain.link/ccip

Across Protocol — SpokePool

Cross-chain bridge. All SpokePool contracts are upgradeable proxies.

Source: docs.across.to/reference/contract-addresses

Yearn V3 (Mainnet)

Deployed via CREATE2. Addresses below verified on Mainnet — verify on other chains before use.

Source: docs.yearn.fi/developers/addresses/v3-contracts

Deterministic Deployer (CREATE2)

Same address on every EVM chain. Used by many protocols for deterministic deployments.

L2-Native Protocols

The dominant DEX on each L2 is NOT Uniswap. Aerodrome dominates Base, Velodrome dominates Optimism, Camelot is a major native DEX on Arbitrum. Don't default to Uniswap — check which DEX has the deepest liquidity on each chain.

Aerodrome (Base) — Dominant DEX

The largest DEX on Base by TVL (~$500-600M). Uses the ve(3,3) model — LPs earn AERO emissions, veAERO voters earn 100% of trading fees. This is the opposite of Uniswap where LPs earn fees directly.

Source: aerodrome-finance/contracts

Velodrome V2 (Optimism) — Dominant DEX

Same ve(3,3) model as Aerodrome — same team (Dromos Labs). Velodrome was built first for Optimism, Aerodrome is the Base fork. Both merged into "Aero" in November 2025.

⚠️ V1 VELO token (0x3c8B650257cFb5f272f799F5e2b4e65093a11a05) is deprecated. Use V2 above.

Source: velodrome-finance/contracts

GMX V2 (Arbitrum) — Perpetual DEX

Leading onchain perpetual exchange. V2 uses isolated GM pools per market (Fully Backed and Synthetic). Competes with Hyperliquid.

Note: Both Exchange Router addresses are valid — both point to the same DataStore. The latest (0x1C3f...) is from the current gmx-synthetics repo deployment.

Source: gmx-io/gmx-synthetics

Pendle (Arbitrum) — Yield Trading

Tokenizes future yield into PT (Principal Token) and YT (Yield Token). Core invariant: SY_value = PT_value + YT_value. Multi-chain (also on Ethereum, Base, Optimism).

Source: pendle-finance/pendle-core-v2-public

Camelot (Arbitrum) — Native DEX

Arbitrum-native DEX with concentrated liquidity and launchpad. Two AMM versions: V2 (constant product) and V4 (Algebra concentrated liquidity).

Source: docs.camelot.exchange

SyncSwap (zkSync Era) — Dominant DEX

The leading native DEX on zkSync Era. Multiple router and factory versions.

Note: SYNC token is not yet deployed.

Source: docs.syncswap.xyz

Robinhood Chain — Stock Tokens & Core Contracts

Robinhood's Arbitrum Orbit L2 (chain ID 4663, mainnet July 2026). Tokenized stocks trade 24/7 as ERC-20s. See l2s/SKILL.md for the chain's trust model before building here.

⚠️ Stock tokens are debt securities (Robinhood Assets Jersey Ltd), not equity, and are not available to US persons. All are 18 decimals with a shared admin registry that can pause, block, mint, confiscate, and upgrade with no timelock. Splits/dividends move a uiMultiplier() display multiplier — raw balances never rebase.

On Robinhood Chain (4663) — verified via Blockscout API (Aug 19, 2026) and onchain via cast call symbol()/decimals() (Aug 20, 2026):

Full live token catalog (generated from the onchain registry): docs.robinhood.com/chain/contracts

On Ethereum mainnet (canonical bridge + rollup core) — verified via Blockscout (proxy implementation names match, Aug 19, 2026) and onchain via cast code (Aug 20, 2026):

Source: L2Beat discovery, cross-checked on Blockscout. Bridge UI: portal.arbitrum.io/bridge (~10 min deposits, ~7 day withdrawals).

Morpho Blue (Base)

Permissionless lending protocol. Deployed on Base and Ethereum, but NOT on Arbitrum as of February 2026 (despite the vanity CREATE2 address).

Source: docs.morpho.org

AI & Agent Standards

ERC-8004 (Same addresses on 20+ chains)

Verified on: Mainnet, Arbitrum, Base, Optimism (CREATE2 — same address on all chains).

Major Tokens (Mainnet)

How to Verify Addresses

# Check bytecode exists
cast code 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 --rpc-url https://eth.llamarpc.com

Cross-reference: Protocol docs → CoinGecko → block explorer → GitHub deployments.

EIP-55 Checksum: Mixed case = checksum. Most tools validate automatically.

Address Discovery Resources

• Uniswap: https://docs.uniswap.org/contracts/v3/reference/deployments/
• Aave: https://docs.aave.com/developers/deployed-contracts/deployed-contracts
• Compound V3: https://docs.compound.finance/
• Chainlink: https://docs.chain.link/data-feeds/price-feeds/addresses
• Aerodrome: https://github.com/aerodrome-finance/contracts
• Velodrome: https://github.com/velodrome-finance/contracts
• GMX: https://github.com/gmx-io/gmx-synthetics
• Pendle: https://github.com/pendle-finance/pendle-core-v2-public
• Camelot: https://docs.camelot.exchange/contracts/arbitrum/one-mainnet
• SyncSwap: https://docs.syncswap.xyz/syncswap/smart-contracts/smart-contracts
• Morpho: https://docs.morpho.org/get-started/resources/addresses/
• Robinhood Chain: https://docs.robinhood.com/chain/contracts
• Lido: https://docs.lido.fi/deployed-contracts/
• Rocket Pool: https://docs.rocketpool.net/overview/contracts-integrations
• 1inch: https://docs.1inch.io/docs/aggregation-protocol/introduction
• EigenLayer: https://docs.eigenlayer.xyz/
• Across: https://docs.across.to/reference/contract-addresses
• Chainlink CCIP: https://docs.chain.link/ccip/directory/mainnet
• Yearn V3: https://docs.yearn.fi/developers/addresses/v3-contracts
• CoinGecko: https://www.coingecko.com (token addresses)
• Token Lists: https://tokenlists.org/
• DeFi Llama: https://defillama.com (TVL rankings by chain)

Multi-Chain Notes

• CREATE2 deployments (same address cross-chain): Uniswap V3, Safe, Seaport, ERC-4337 EntryPoint, ERC-8004, Permit2, 1inch v6, Yearn V3, Arachnid Deployer
• Different addresses per chain: USDC, USDT, DAI, WETH, wstETH, Uniswap V4, Across SpokePool, Chainlink CCIP Router — always check per-chain
• Native vs Bridged USDC: Some chains have both! Use native.

✅ All addresses verified onchain via eth_getCode + eth_call — March 3, 2026 (Robinhood Chain section: August 20, 2026 via cast call/cast code over Alchemy RPC). Bytecode confirmed present, identity confirmed via symbol/name/cross-reference calls. Does NOT guarantee safety — always verify on block explorer before sending transactions.

Before you finish: send a one-line note via feedback/SKILL.md — issue or praise.