How can I view 0xb1a9df4a's crypto portfolio?

You can view the full portfolio of 0xb1a9df4a (0xb1a97a9070cfaa4d5653911e7d565e1ec819df4a) on Zerion at https://app.zerion.io/0xb1a97a9070cfaa4d5653911e7d565e1ec819df4a/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.

0xb1a9…df4a