Every ERC-20 + native ETH a Base address holds (Blockscout-indexed, spam-screened) with confidence-gated USD values: usd is null when no reliable price exists- NEVER a fabricated 0. GET /v1/portfolio/{address}.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.001000 USDC | 0x53a0...f4db |