"Mastercard has signed a broad strategic partnership with OpenAI. CEO Michael Miebach said on the company's Q3 2026 earnings call on October 29, 2026 that the agreement includes the use of Agent Pay, Mastercard's payment product for AI agents, and goes well beyond it, covering payments, joint growth in services, and AI transformation. He said it takes two forms, machine-to-machine transactions and traditional e-commerce, and pointed to B2B card payments and micro-transactions as future opportunities."