-The address `0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee` is a sentinel (placeholder) address used to represent native tokens in EVM smart contracts. Since native tokens (ETH, BNB, AVAX, etc.) exist at the protocol level rather than as smart contracts, DeFi protocols need a placeholder address when their code expects contract addresses for all tokens. This address represents the native token of whatever chain you're on: ETH on Ethereum Mainnet and its L2s (Base Mainnet, Arbitrum One, Optimism Mainnet), BNB on BSC Mainnet, AVAX on Avalanche C-Chain, and so forth.
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