How can I view 0x4df89b0d's crypto portfolio?

You can view the full portfolio of 0x4df89b0d (0x4df8278033f32bed7ebc855a1f3bfef5c0ec9b0d) on Zerion at https://app.zerion.io/0x4df8278033f32bed7ebc855a1f3bfef5c0ec9b0d/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.