{"service":"STEM","version":"0.1.0","description":"Multi-domain computation — chemistry, physics, math, and constant lookup behind an agentic ask endpoint.","endpoints":{"/":"This page","/health":"Health check","/about":"Service metadata and pricing","/.well-known/x402.json":"x402 discovery manifest","/llms.txt":"Agent discovery document","/openapi.json":"OpenAPI schema","/stem/tools":"List available tools with schemas","/stem/feedback":"Submit feedback (GET/POST)","POST /stem/ask":"Ask a multi-domain computation question (paid)"}}