Machine Payments Protocol (MPP)
Payments
Open HTTP payment standard from Stripe and Tempo covering one-shot, recurring, and streaming agent payments across cards, stablecoins, and Lightning
MCPOpenAPIllms.txtMPP
API keyper-transaction
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.
Payments·Rails and facilitators — x402, MPP, L402
Payments
Open HTTP payment standard from Stripe and Tempo covering one-shot, recurring, and streaming agent payments across cards, stablecoins, and Lightning
Payments
Shared payment tokens, agentic network tokens, and ACP support so businesses can sell through AI agents
Payments
Issue virtual cards agents can spend on, with real-time authorization decisions, per-card spend controls, and full transaction visibility
Payments
Agentic tokens and Agent Pay registration so verified agents can initiate card payments for a consumer
Payments
Scoped virtual cards external agents can spend within company policy, plus an MCP server over spend data
Payments
Payments-focused L1 built for machine payments, co-author of MPP and home of the MPP service directory
Payments
Network tokens and credentials for approved agents, plus one endpoint bridging TAP, MPP, ACP and UCP
Same query as JSON: /api/v1/services?category=pay&protocol=mpp