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Stripe is moving deeper into the intersection of artificial intelligence and cryptocurrency, unveiling a new payment system that allows AI agents to autonomously purchase digital services using stablecoins.
The payments giant on Feb. 11 introduced support for Base, an Ethereum-based blockchain network, within its x402 payment protocol, Crypto.News reports. The feature, currently in preview, enables AI agents to make automated transactions in USD Coin (USDC), a dollar-pegged stablecoin, for services such as data access, computing power and API calls.
Stripe product manager Jeff Weinstein said existing payment systems are primarily designed for humans and subscriptions, making them ill-suited for autonomous software. AI agents, he noted, require payment rails that are fast, low-cost and always available without human oversight.
Under the new system, businesses create a standard Stripe Payment Intent, after which Stripe assigns a unique wallet address to each transaction. When an AI agent sends USDC to that address on Base, the payment can be tracked in real time via the Stripe dashboard, webhooks or API integrations. Once confirmed, funds are credited to the merchant’s Stripe balance, with existing infrastructure handling tax reporting, refunds and compliance.
The system relies on x402, an open protocol that revives the HTTP “402 Payment Required” status code. If an agent attempts to access a paid service, it receives a payment request. After sending USDC on Base, access is automatically granted. Because Base offers fast settlement and relatively low fees, payments can be completed within seconds, enabling micropayments priced per request or per minute.
Stripe has also released an open-source command-line tool called “purl,” along with sample code in Python and Node.js, to help developers test machine-to-machine payments.
The launch reflects Stripe’s broader push into what it describes as the “agent economy,” in which software programs independently manage finances and transact without human approval. Instead of relying on monthly subscriptions or prepaid credits, services can be priced dynamically—per action, per second or per query.
For now, the system supports USDC on Base, chosen for price stability and predictable transaction costs. Stripe said additional protocols, currencies and blockchain networks are expected to be added over time.
Industry observers view the initiative as a further convergence of AI, fintech and blockchain infrastructure, positioning stablecoins as a payment layer for automated digital commerce.
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