How can I view 0xe1cfd4b1's crypto portfolio?

You can view the full portfolio of 0xe1cfd4b1 (0xe1cfe0a31bd7b4e1ef88197bad25e244ae87d4b1) on Zerion at https://app.zerion.io/0xe1cfe0a31bd7b4e1ef88197bad25e244ae87d4b1/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.