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Quiet Failures

com.quietfailures/quiet-failures · v1.4.8

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Read-only (all tools declare readOnlyHint)
Capabilities declared	tools
Tool definitions	6 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

Open weekly security base rates (CC BY 4.0), plus live DMARC, takeover and WHOIS checks.

streamable-http · https://mcp.quietfailures.com/mcp

claude mcp add --transport http quiet-failures https://mcp.quietfailures.com/mcp

{
  "mcpServers": {
    "quiet-failures": {
      "url": "https://mcp.quietfailures.com/mcp"
    }
  }
}

list_base_rates
Catalog of all published Quiet Failures base rates: metric id, the global question, the current global figure, sample size, severity, and every published segment slug (valid `segment` values for get_base_rate). Use get_base_rate for full detail on one.
find_base_rate
Search the Quiet Failures base rates by keyword (e.g. "dmarc", "certificate expiry uk", "subdomain takeover"). Returns matching metrics and their most citable segments.
get_base_rate
Full detail for one Quiet Failures base rate segment: the figure with confidence interval, how it is measured, why it matters, the limits of the measurement, the recent time series, and the canonical source URL to cite. Segment defaults to "global"; country slugs (gb, fr, us…) and company cuts (gb-c
check_email_auth
Live SPF, DKIM and DMARC audit of up to 50 domains the user owns or asks about. Returns a per-domain breakdown plus a portfolio grade. Compare against the base rates: most of the web fails these controls. Rate-limited per client.
check_subdomain_takeover
Live scan of one domain: enumerate its subdomains (CT logs + DNS), then test each for dangling references on 13 cloud providers. Slow on large domains (up to a few minutes). Rate-limited per client.
check_whois
Live WHOIS lookup for up to 100 domains: expiry date, registrar, nameservers. Use to catch registrations about to lapse. Rate-limited per client.

Website · JSON · Text for agents · Registry updated 2026-08-17