How can I view duymuoi270699eth's crypto portfolio?

You can view the full portfolio of duymuoi270699eth (0x28f40132eb3ac6948b283ad51080fba7a6c78ec2) on Zerion at https://app.zerion.io/0x28f40132eb3ac6948b283ad51080fba7a6c78ec2/overview — including token balances, DeFi positions, NFTs, and transaction history across 20+ chains.

How can I access wallet portfolio data programmatically?

Use the Zerion API at https://developers.zerion.io to query any wallet's portfolio, token positions, DeFi positions, NFTs, and transaction history programmatically.