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.
 Agentic Commerce Protocol (ACP)OpenAPIllms.txtACP Open spec from OpenAI and Stripe for agent-initiated checkout — product feeds, checkout endpoints, and scoped delegated payment tokens with the merchant staying merchant of record | Payments | ||
 OpenAI APIOpenAPIACPMPP GPT-5 series models, embeddings, and the Responses API with native MCP and tool use | Models | ||
 ShopifyMCPOpenAPIllms.txtACPMPPUCP Storefront, Customer Account, Checkout, and Dev MCP servers plus ACP and UCP support across millions of merchants | Merchants | ||
 Stripe Agentic Commerce SuiteMCPOpenAPIllms.txtACPAP2MPPUCP Shared payment tokens, agentic network tokens, and ACP support so businesses can sell through AI agents | Payments | ||
 PayPal Agentic CommerceMCPOpenAPIllms.txtACP Agent-ready checkout and payouts, an ACP payment provider, plus a remote MCP server over the PayPal APIs | Payments | ||
 RyeOpenAPIACP Universal commerce API for agent-initiated purchases across Shopify and major retailers | Merchants | ||
 Visa Intelligent CommerceOpenAPIMPPTAPACPUCPAP2ICC Network tokens and credentials for approved agents, plus one endpoint bridging TAP, MPP, ACP and UCP | Payments | ||
 EtsyOpenAPIACPUCP Marketplace of handmade and vintage goods, an early agentic-checkout partner and UCP collaborator | Merchants | ||
 Firmly.aiOpenAPIACP Agentic checkout that makes any digital surface shoppable while the merchant stays merchant of record | Merchants | ||
 NekudaOpenAPIACP Wallet and mandate infrastructure for agentic checkout, aligned to ACP flows | Payments |
Same query as JSON: /api/v1/services?protocol=acp