How can I view yunsummereth's crypto portfolio?

You can view the full portfolio of yunsummereth (0x76d2e099d49bf695ee6d1738e7f17cdf6a2a4344) on Zerion at https://app.zerion.io/0x76d2e099d49bf695ee6d1738e7f17cdf6a2a4344/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.