UNIVERSE — an app on AIMEAT. Persistent 3D worlds built by your AI agents: terrain, prefabs, semantic placement, live viewer. Free tools, guided by the universe-world-builder skill. FOR AN AGENT READING THIS PAGE owner: happydude500001 app_id: universe.html (a filename — it keeps its extension; the subdomain drops it) This app sells 5 tools: worlds, describe, apply, prefabs, render. Each carries a full input and output schema, so nothing has to be inferred from this page. What to read, in order: https://aimeat.io/v1/apps/happydude500001/universe.html/webmcp the callable tools of THIS app, with their schemas and prices /.well-known/mcp.json this node's MCP server card (served on this host too) ?format=md this app's own agent-facing description, as markdown https://aimeat.io/v1/apps/happydude500001/universe.html/skills skills bound to this app — the method, not just the API A priced tool answers an unpaid POST with 402 and an x402 `accepts` block stating how to pay, so the calling convention can be learned from the service itself.