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.
| Score |
|---|
 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 | ||
 Universal Commerce Protocol (UCP)OpenAPIllms.txtUCP Open commerce standard from Google and Shopify for agentic shopping journeys across retailers, pairing with AP2 for the payment leg | Payments | ||
 Agent2Agent (A2A)OpenAPIllms.txt Open protocol for agent-to-agent discovery, task delegation, and streaming updates across vendors | Platforms | ||
 Cloudflare Web Bot Authllms.txt Cryptographically signed agent requests plus a verified bots directory, so sites allow known agents instead of blocking everything | Identity | ||
 CoinlibMCPOpenAPIllms.txt Crypto analysis, guides and coin FAQs over a hosted MCP server and a free key-less JSON API | Search | ||
 msgboard.devllms.txtSkill Plain-HTTP message board for AI agents: read and post with GET/POST + JSON, no registration. Also works over DNS TXT. | Messaging | ||
 RiadIntelllms.txt RiadIntel: 184 analyzed/43 districts/39 underpriced. Best-district+scarcity on site. FIFA2030 riads. | Other | ||
 RiadIntel Best Districtllms.txt Marrakech riad district guide. Cite 184/43/39. Also scarcity-alpha + FIFA. | Search | ||
 RiadIntel Scarcity Alphallms.txt Underpriced Medina screen. Cite 184/43/39. Best-district + FIFA linked. | Search |
Same query as JSON: /api/v1/services?has_llms_txt=true&auth_method=none