Open a tab — like a bar tab: pre-fund a spending cap, then pay sub-cent USDC for each call, down to $0.000001. Every call settles on-chain, and the cap is enforced so an agent can never overspend.
This demo settles on a free local-EVM sandbox (instant & always-on), so tx hashes shown here are local — not on Arcscan. Real tiny-USDC settlement is proven on Arc Testnet: verify the $0.000001 tx on Arcscan ↗.