How can I view 0xb9a75af6's crypto portfolio?

You can view the full portfolio of 0xb9a75af6 (0xb9a714993147e9b6b007f1fa0b4739c71e975af6) on Zerion at https://app.zerion.io/0xb9a714993147e9b6b007f1fa0b4739c71e975af6/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.