How can I view 0x90a9e34b's crypto portfolio?

You can view the full portfolio of 0x90a9e34b (0x90a9344d64460e2095fb693a1221c4a69800e34b) on Zerion at https://app.zerion.io/0x90a9344d64460e2095fb693a1221c4a69800e34b/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.