How can I view 0xc84de4c7's crypto portfolio?

You can view the full portfolio of 0xc84de4c7 (0xc84d271c35fc9d0d73d2ca7aea87c6dacfdbe4c7) on Zerion at https://app.zerion.io/0xc84d271c35fc9d0d73d2ca7aea87c6dacfdbe4c7/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.