How can I view 0x21d99d1a's crypto portfolio?

You can view the full portfolio of 0x21d99d1a (0x21d90e6f18f3848d9e45f34bdb4dfdde3fa09d1a) on Zerion at https://app.zerion.io/0x21d90e6f18f3848d9e45f34bdb4dfdde3fa09d1a/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.

0x21d9…9d1a