Call when an agent needs native ETH plus up to 20 ERC-20 balances for one Base address. Send address and an optional tokens list; omit tokens for Circle USDC. Multicall3 batches the reads. Read-only. No spend. Send JSON {"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","tokens":["0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"]}. Exact $0.005 USDC on Base. Try unpaid POST /v1/sandbox/base-portfolio first.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.005000 USDC | 0x1D61...5a38 |