How can I view 0x4099e9f8's crypto portfolio?

You can view the full portfolio of 0x4099e9f8 (0x40997520d19fe543c8bd7f13f63cc81f9332e9f8) on Zerion at https://app.zerion.io/0x40997520d19fe543c8bd7f13f63cc81f9332e9f8/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.

0x4099…e9f8