How can I view 0x3ad4be21's crypto portfolio?

You can view the full portfolio of 0x3ad4be21 (0x3ad42ace9f83e1bac2a204d75930e4fb9d82be21) on Zerion at https://app.zerion.io/0x3ad42ace9f83e1bac2a204d75930e4fb9d82be21/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.