How can I view stellseth's crypto portfolio?

You can view the full portfolio of stellseth (0x4e11acfa582f8ff1147cd4b1c870cc7d87ef2baf) on Zerion at https://app.zerion.io/0x4e11acfa582f8ff1147cd4b1c870cc7d87ef2baf/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.