How can I view dxbarteth's crypto portfolio?

You can view the full portfolio of dxbarteth (0x138a6c82de5518100223046efb08628bc6b237a7) on Zerion at https://app.zerion.io/0x138a6c82de5518100223046efb08628bc6b237a7/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.