How can I view 291091eth's crypto portfolio?

You can view the full portfolio of 291091eth (0x2cef35ddad95cd702ac8bc9ef423abae9155ee1c) on Zerion at https://app.zerion.io/0x2cef35ddad95cd702ac8bc9ef423abae9155ee1c/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.