How can I view 0xa1659a9d's crypto portfolio?

You can view the full portfolio of 0xa1659a9d (0xa165d821135e6f6fd3abc5b3080e04725eef9a9d) on Zerion at https://app.zerion.io/0xa165d821135e6f6fd3abc5b3080e04725eef9a9d/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.