How can I view 0xcef0a555's crypto portfolio?

You can view the full portfolio of 0xcef0a555 (0xcef0741e929c398282a7e8a0f013a7c6a004a555) on Zerion at https://app.zerion.io/0xcef0741e929c398282a7e8a0f013a7c6a004a555/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.