get https://{network}.g.alchemy.com/nft/v3//isAirdropNFT
isAirdropNFT - Determines whether a specific token is marked as an airdrop. Airdrops are defined as NFTs minted to a user address in a transaction sent by a different address. This endpoint is supported on Ethereum and many L2s, including Polygon, Arbitrum, Optimism, Base, World Chain and more. See the full list of supported networks here.
NOTE
Please note that this endpoint is only available on Ethereum (mainnet only) & Polygon (mainnet, amoy & mumbai)