How can I view 0xbffcf59d's crypto portfolio?

You can view the full portfolio of 0xbffcf59d (0xbffc77b1c8c074a7edec2241e0b610da7e1cf59d) on Zerion at https://app.zerion.io/0xbffc77b1c8c074a7edec2241e0b610da7e1cf59d/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.