api.zugferd-validator.de
https://api.zugferd-validator.de/mcp
61
trust
0.55
confidence
medium
risk
trust-2026-08-12.2
observed 2d ago
Why this score
| tls_present_and_valid | +12 |
| mcp.unauthenticated_consequential_tools | -8 |
| reachable | +6 |
| mcp_capabilities_discoverable | +4 |
| headers.missing_hsts | -3 |
Findings (3)
| medium | Capabilities are listable without authentication, including 2 whose names suggest state change (create_invoice, validate_invoice) — inferred from tool names, not confirmed mcp.unauthenticated_consequential_tools @ 1.0.0 |
| low | No Strict-Transport-Security header headers.missing_hsts @ 1.0.0 |
| info | CORS allows any origin cors.wildcard_origin @ 1.0.0 |
Evidence (7)
| Type | Observed | SHA-256 |
|---|---|---|
| dns_resolution_observation | 2d ago | 861bb21439899b4d… |
| http_response_observation | 2d ago | ee6b885fd9498fc2… |
| availability_observation | 2d ago | 3630ab8be70cfa3d… |
| tls_certificate_observation | 2d ago | c8ea9287990165c1… |
| oauth_metadata_observation | 2d ago | aadde797114de961… |
| mcp_protocol_observation | 2d ago | 0f10179183c96292… |
| mcp_capability_observation | 2d ago | f226c25f1513036e… |
Every record is append-only and content-hashed. Corrections supersede; nothing is overwritten.
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