How can I view 0x3897dc4e's crypto portfolio?

You can view the full portfolio of 0x3897dc4e (0x38978986bbdc8661323f2fe23d46742851dcdc4e) on Zerion at https://app.zerion.io/0x38978986bbdc8661323f2fe23d46742851dcdc4e/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.