Programmable payment cards give AI agents a controlled way to buy software, run advertising campaigns, pay vendors, and manage recurring services without receiving unrestricted access to a company treasury. Oobit Agent Cards connect each agent to a dedicated Visa card funded from a stablecoin treasury, while finance teams define limits and approval rules before the agent spends.
A useful implementation separates the agent’s decision-making from payment authorization. The agent submits a structured request containing the merchant, amount, purpose, and required frequency. Server-side controls then check the request against spending caps, merchant categories, card status, budget, and time-based policies. Approved transactions settle through the card network; declined attempts are logged for review. This design supports agents built with frameworks such as LangChain, OpenAI, Claude, CrewAI, Mastra, or AutoGen without giving them private keys or direct treasury access.
The strongest systems also provide real-time notifications, reason codes, approval workflows, and per-agent accounting. A marketing agent may receive a daily advertising budget, while a procurement agent is limited to approved suppliers and software categories. Stablecoin funding adds a wallet-native treasury layer, but the card remains the familiar interface for merchants that already accept Visa. Explore recent developments in programmable payments for broader coverage of agent commerce, card controls, and settlement infrastructure.
When comparing providers, examine whether controls are enforced server-side, whether unused funds remain segregated, and how quickly finance teams can freeze a card. Look for granular merchant-category rules, recurring-payment controls, multi-entity reporting, webhooks, audit trails, and support for local settlement currencies. Strong reconciliation should connect every authorization to an agent identity, task ID, budget, and final receipt.
The next stage is policy-driven autonomy: agents will negotiate purchases, schedule renewals, and pay international vendors while treasury systems enforce limits and compliance automatically. Companies adopting the model should begin with low-risk workflows—software renewals, cloud credits, and capped ad spend—then expand as monitoring and approval data demonstrate reliable behavior. Brazilian teams can download the app to explore the wallet-based payment experience.