What exactly leaves Avalanche as AVAX?
AVAX is listed as the native representation on Avalanche; AVAX is used for network gas. An Avalanche source route uses C-Chain Snowman execution and AVAX gas; X-Chain or P-Chain balances are not valid C-Chain deposits. On Avalanche C-Chain, native AVAX funds both the transfer value and gas; on another chain, an AVAX-labelled contract behaves as a token input instead.
What exactly arrives on Optimism as OP?
OP is a contract representation on Optimism at 0x4200000000000000000000000000000000000042. ETH, not OP, pays gas unless both symbols are the same. An OP Mainnet receipt belongs to the OP Stack L2 and needs ETH on that network for later activity; it is not an Ethereum L1 balance. OP receipt is a governance-token balance, not destination gas. Verify the destination contract and keep ETH available for OP Mainnet activity.
Why does the AVAX to OP direction matter?
On Avalanche C-Chain, native AVAX funds both the transfer value and gas; on another chain, an AVAX-labelled contract behaves as a token input instead. On receipt, OP receipt is a governance-token balance, not destination gas. Verify the destination contract and keep ETH available for OP Mainnet activity.
What changes between the source and destination asset roles?
AVAX is the deposited native-asset input; OP is the quoted token output. Source allowance or native-spend rules and destination wallet/representation checks are evaluated separately.
What should be matched before sending AVAX?
On Avalanche C-Chain, native AVAX funds both the transfer value and gas; on another chain, an AVAX-labelled contract behaves as a token input instead. An Avalanche source route uses C-Chain Snowman execution and AVAX gas; X-Chain or P-Chain balances are not valid C-Chain deposits. An OP Mainnet receipt belongs to the OP Stack L2 and needs ETH on that network for later activity; it is not an Ethereum L1 balance. OP receipt is a governance-token balance, not destination gas. Verify the destination contract and keep ETH available for OP Mainnet activity.
What funds the Avalanche source transaction?
AVAX is the native gas asset for Avalanche. An Avalanche source route uses C-Chain Snowman execution and AVAX gas; X-Chain or P-Chain balances are not valid C-Chain deposits. AVAX is recorded as native on this source.
What is the most dangerous wrong-network mistake here?
Sending AVAX on a network other than Avalanche, or using an address that is not valid for Optimism, can prevent detection or delivery. Match both network labels and representations to the active route.
Can I swap AVAX on Avalanche to OP on OP Mainnet without KYC?
Requirements are checked for the live AVAX Avalanche to OP OP Mainnet quote. Verification requirements can depend on the provider, amount, jurisdiction, and current route. Sasquatch does not verify this route as universally no-KYC; check the live flow before continuing.