generated: '2026-09-03' method: searched note: >- hostdefi.com serves a real machine surface at /.well-known/ — an A2A agent card (canonical and legacy paths, byte-identical) and an x402 payment-discovery manifest. security.txt is served at the LEGACY root path /security.txt (RFC 9116 secondary location) and its own Canonical field points at /.well-known/security.txt, which 404s — a provider-fixable inconsistency. A negative-control probe (/.well-known/hostdefi-negative-control-a91f3c2e.json) returned 404, so the 200s are real documents, not an SPA catch-all. The Railway origin host serves the x402 manifest only. path_echo_control: passed hosts: - host: https://hostdefi.com documents: - path: /.well-known/agent-card.json status: 200 file: hostdefi-agent-card.json - path: /.well-known/agent.json status: 200 file: hostdefi-agent-card.json - path: /.well-known/x402 status: 200 file: hostdefi-x402.json - path: /security.txt status: 200 file: hostdefi-security.txt - path: /.well-known/security.txt status: 404 - path: /.well-known/openid-configuration status: 404 - path: /.well-known/oauth-authorization-server status: 404 - path: /.well-known/oauth-protected-resource status: 404 - path: /.well-known/api-catalog status: 404 - path: /.well-known/ai-plugin.json status: 404 - path: /.well-known/ucp.json status: 404 - path: /.well-known/acp.json status: 404 - path: /.well-known/aauth-resource.json status: 404 - path: /.well-known/apis.json status: 404 - path: /apis.json status: 404 - path: /apis.yml status: 404 - host: https://awake-integrity-production-faa0.up.railway.app documents: - path: /.well-known/x402 status: 200 file: hostdefi-x402.json - path: /.well-known/security.txt status: 404 - path: /.well-known/agent-card.json status: 404 - path: /.well-known/agent.json status: 404 - path: /.well-known/apis.json status: 404 - path: /.well-known/openid-configuration status: 404