{"service":"facility-verify","description":"Pay-per-call Medicare facility verification for AI agents (x402). POST /verify with a CMS Certification Number (CCN); pay $0.05 in USDC on Base per call.","payment":{"protocol":"x402 v2","network":"eip155:8453","price_per_call":"$0.05","mode":"mainnet"},"data_source":"CMS Provider of Services File Q2 2025 (US federal public domain), 116,331 facilities","endpoints":{"POST /verify":"{ccn: string} - CMS Certification Number, e.g. '010001'","GET /coverage":"index coverage + build info","GET /openapi.json":"OpenAPI 3.1 document","GET /.well-known/x402":"x402 resource manifest"},"disclaimer":"Informational only, not legal or compliance advice. Data from the CMS Provider of Services File (Q2 2025), US federal public domain. Certification status can change; verify critical decisions against CMS sources."}