"Rain, introduced Rain Agent Vaults, embedded payment infrastructure that lets an AI agent spend, receive, and send money from a balance its owner funds, within rules the owner sets. A vault is funded by bank transfer, card, or stablecoins, and the agent can only pay or send what is in it. Rain issues a scoped card for each purchase, accepted at 175 million merchant locations in 200 countries and territories, and agents can send funds to local bank accounts in more than 80 countries."