CuseTheJuice mailbox @ mail.cusethejuice.com — rename a Maildir folder (from_folder → to_folder). Agents: pay with x402 (Base USDC), POST JSON using fields from extensions.bazaar on the 402. Full catalog, examples, human flows: https://mail.cusethejuice.com/machine-mail.html · Find every route: Coinbase CDP x402 merchant discovery (payTo).