Introduction Ethereum wallets can hold ETH, dozens of ERC-20 tokens, and NFTs spread across multiple collections — yet most tools only show you one piece at a time. I set out to fix that by building a Token & NFT Portfolio API : a FastAPI service that aggregates Ethereum wallet balances, fungible tokens, and NFTs into clean, structured JSON responses. Whether you're building a crypto dashboard, an NFT explorer, a wallet intelligence tool, or an Ethereum analytics platform, this API gives you a single endpoint to query instead of cobbling together multiple providers. Here's what we built, how it works, and what comes next. What It Does The API solves a deceptively simple problem: given a wallet address, return everything that wallet holds — tokens, NFTs, and native balances — in a consistent, developer-friendly format.…