x402 Agent Tools & Discovery Endpoints — grug402

Machine-readable discovery surfaces for the grug402 x402 catalog: llms.txt, sitemap, robots.txt, OpenAPI 3.1, agent-skills, and more — all derived from the live endpoints.

• llms.txt — agent-oriented markdown overview
• sitemap.xml — catalog-generated sitemap
• robots.txt — crawler policy
• Homepage as markdown — full catalog in clean markdown
• .well-known/api-catalog — RFC 9727 linkset
• .well-known/agent-skills — machine-readable skill description
• .well-known/agent-skills/index.json — RFC v0.2.0 agent-skills discovery index
• OpenAPI 3.1 — enriched service description
• .well-known/ucp — Universal Commerce Protocol profile
• .well-known/acp.json — Agentic Commerce Protocol discovery
• .well-known/ai-catalog.json — ARD ai-catalog (Agentic Resource Discovery)