Call when an agent needs a Base block header and transaction hashes by number or tag latest, finalized, or safe. The hash list is capped at 100. Read-only eth_getBlockByNumber. No spend. Send JSON {"block":"latest"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/base-block first.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.002000 USDC | 0x1D61...5a38 |