How can I view maria1991eth's crypto portfolio?

You can view the full portfolio of maria1991eth (0x0101388431270058dd9f08d01e6b4b35f97ad975) on Zerion at https://app.zerion.io/0x0101388431270058dd9f08d01e6b4b35f97ad975/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.