How can I view 0x290cb2ce's crypto portfolio?

You can view the full portfolio of 0x290cb2ce (0x290c791fb5583c0fc3fc45fe2a5f704c05e4b2ce) on Zerion at https://app.zerion.io/0x290c791fb5583c0fc3fc45fe2a5f704c05e4b2ce/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.