A directory of services AI agents can actually use — APIs, tools and merchants with machine-readable interfaces and agent payment protocols. Badges are probe-backed, never self-asserted.
| Category |
|---|
| Score |
|---|
 Machine Payments Protocol (MPP)MCPOpenAPIllms.txtMPP Open HTTP payment standard from Stripe and Tempo covering one-shot, recurring, and streaming agent payments across cards, stablecoins, and Lightning | Payments | ||
 Stripe Agentic Commerce SuiteMCPOpenAPIllms.txtACPAP2MPPUCP Shared payment tokens, agentic network tokens, and ACP support so businesses can sell through AI agents | Payments | ||
 Stripe Issuing for AgentsMCPOpenAPIllms.txtMPP Issue virtual cards agents can spend on, with real-time authorization decisions, per-card spend controls, and full transaction visibility | Payments | ||
 Mastercard Agent PayOpenAPIllms.txtAgent PayMPP Agentic tokens and Agent Pay registration so verified agents can initiate card payments for a consumer | Payments | ||
 TempoMCPOpenAPIllms.txtMPP Payments-focused L1 built for machine payments, co-author of MPP and home of the MPP service directory | Payments |
Same query as JSON: /api/v1/services?category=pay&protocol=mpp&has_llms_txt=true