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 | ||
 CircleMCPOpenAPIllms.txtx402 USDC issuance, programmable wallets, and Circle Payments for agent-to-agent settlement | Payments | ||
 MarqetaMCPOpenAPI Enterprise card issuing platform with agentic payment controls and an MCP server over the issuing APIs | Payments | ||
 NeverminedMCPOpenAPIllms.txtx402 Metering, authorization, and settlement for agent APIs, including an x402 facilitator and credit-based plans | Payments | ||
 PlaidMCPOpenAPIllms.txt Bank account data, balances, and payment initiation, with a remote MCP server over the dashboard APIs | Payments | ||
 ZuploMCPOpenAPIllms.txtx402 API gateway that puts an x402 or key-based paywall in front of any endpoint agents call | Payments |
Same query as JSON: /api/v1/services?category=pay&has_mcp=true&auth_method=api-key