How can I view seijoishiieth's crypto portfolio?

You can view the full portfolio of seijoishiieth (0x5c2030411eff2b7fc35e0f4400fa4a00c6a2987c) on Zerion at https://app.zerion.io/0x5c2030411eff2b7fc35e0f4400fa4a00c6a2987c/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.