How can I view 520213eth's crypto portfolio?

You can view the full portfolio of 520213eth (0x873225920de0bc739091316a53f1cf49c7339674) on Zerion at https://app.zerion.io/0x873225920de0bc739091316a53f1cf49c7339674/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.