Crossmint has rolled out a new API that lets developers give AI agents the ability to make card payments. The API, built on Visa’s network, uses tokenized credentials to process transactions. That means an AI agent—whether it's booking a flight, ordering supplies, or managing a subscription—can now handle payments without human intervention.
What the API does
The API replaces sensitive card data with unique tokens. When an AI agent triggers a purchase, the token is sent to Visa for authorization. Developers can embed this function into their own software, turning a chatbot or automated system into a paying customer. The credentials are stored and managed by Crossmint, so developers don't have to handle raw card numbers.
Why developers would care
Until now, letting an AI agent spend money required workarounds—prepaid cards, manual approvals, or limiting agents to non-financial tasks. Crossmint's API removes that friction. A developer building an AI travel assistant, for instance, can have the agent book hotels and pay directly. The same goes for automated inventory restocking, digital content purchases, or any recurring transaction an AI might handle.
How the credential security works
Tokenization reduces exposure if a system is breached. Instead of stealing a real card number, an attacker would only find a token useless outside the specific merchant or transaction context. Visa’s network handles the token-to-card mapping on the backend. Crossmint says the API is designed to meet payment-industry security standards, though the company hasn't disclosed which certifications it holds.
Crossmint, known for building Web3 payment tools, is expanding into traditional card rails. The Visa partnership gives the API access to a global acceptance network, meaning AI agents can transact at any Visa-accepting merchant.
Who will use it first
Early use cases are likely to be e-commerce automation, AI-driven procurement, and interactive AI assistants that need to complete purchases. Small software teams could integrate the API in hours, Crossmint claims, because it's a straightforward REST endpoint. Larger firms may test it for customer-service bots that escalate to paid actions.
There's no word yet on pricing or transaction fees. Crossmint hasn't released usage limits either. Developers can start testing the API today through Crossmint's developer portal.
