atx/registry

captcha.cc

https://captcha.cc/mcp

49
trust
0.55
confidence
medium
risk
trust-2026-08-12.2
observed 2d ago

Why this score

mcp.unauthenticated_consequential_tools-8
tls_present_and_valid+4
mcp_capabilities_discoverable+4
headers.missing_hsts-3
reachable+2

Findings (2)

mediumCapabilities are listable without authentication, including 1 whose name suggests state change (create_challenge) — inferred from tool names, not confirmed
mcp.unauthenticated_consequential_tools @ 1.0.0
lowNo Strict-Transport-Security header
headers.missing_hsts @ 1.0.0

Evidence (8)

TypeObservedSHA-256
dns_resolution_observation2d ago7179152c78bf61e9…
http_response_observation2d ago6d6782aef2b9542b…
availability_observation2d agofb93afe533c73bcb…
hosting_provider_observation2d agoe7292135d1d3f6bd…
tls_certificate_observation2d ago9759248136b45859…
oauth_metadata_observation2d agob9a0354e7134fdfc…
mcp_protocol_observation2d ago99f09af186b31e7f…
mcp_capability_observation2d agof471dc875daec1ba…

Every record is append-only and content-hashed. Corrections supersede; nothing is overwritten.

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