Quiet Failures
Open weekly security base rates (CC BY 4.0), plus live DMARC, takeover and WHOIS checks.
MCP server · by quietfailures.com
About
Quiet Failures is an MCP server published by quietfailures.com. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-30.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport http quiet-failures https://mcp.quietfailures.com/mcp[mcp_servers.quiet-failures]
url = "https://mcp.quietfailures.com/mcp"{
"mcpServers": {
"quiet-failures": {
"url": "https://mcp.quietfailures.com/mcp"
}
}
}Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.4.8 | No figure published | Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
Nothing has moved on this plugin since we started watching it.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
BlackVeil DNS & Email Security Scanner
DNS and email security scanner with 81 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.
-
Assess any domain's email security across SPF, DMARC, DKIM, MTA-STS, DNSSEC, DANE, and TLS-RPT.
-
DMARKOFF — DMARC, SPF & DKIM Analytics
DMARC analytics for AI assistants: SPF/DKIM, compliance, anomalies, p=reject readiness, onboarding.
-
AI-operated. Email authentication reader: six free tools, no key, no signup.
AI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.
-
DMARC monitoring, SPF/DKIM diagnostics, reports, domains and MSP client management with Suped.
-
DomainRef - domain and email security check
Pay-per-call domain and email security check: SPF, DKIM, DMARC, TLS, DNSSEC, BIMI, with exact fixes.
-
Use when email lands in spam: audits SPF, DKIM, DMARC, MX and returns the DNS records to fix it.
-
dns-doctor dev.dnsdoctor/dns-doctor
Scan, fix, verify and monitor DNS: SPF, DMARC, DKIM, propagation, health, expiry. Validated fixes.
-
Check a domain's email authentication: SPF, DKIM, DMARC, BIMI, MX, MTA-STS, TLS-RPT. Score + fixes.
-
Auth Posture — Email Deliverability & Spoofability Audit
One-call domain audit: MX receiving, SPF/DMARC/DKIM spoofing protection, disposable-address risk.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
AI-native security intelligence. Query your security posture, investigate threats, triage alerts, and run SQL against all your connected data sources — directly from Claude Code.
-
SCOPE - Security, Compliance & Operational Policy Evaluation - A Claude plugin that runs deterministic pre-flight compliance evaluation on agentic workflows. Maps every MCP tool…
-
Data freshness and endpoint liveness verification for AI agents. Probes external APIs and endpoints before agents act on their data, returning deterministic FRESH/STALE/UNKNOWN…
-
Agent safety infrastructure (RiskOracle, NoLeak, MemGuard, SecureExec, FlowCore) and real-time DELPHI Oracle intelligence signals. x402 USDC micropayments on Base Mainnet. 19…
-
Real-time security filter for MCP tool communications. Works as a Claude Code hook to inspect all data sent to and received from MCP servers. Detects prompt injection, API key…
Has a listing on Claude Code: claude-plugins-official (5)
-
Dynatrace observability skills: DQL query patterns, application and infrastructure monitoring, log analysis, problem investigation, and incident response workflows, with the…
-
The Vanta plugin connects Claude Code to Vanta's security and compliance platform through the Vanta MCP server. It combines Vanta's test-specific remediation intelligence with…
-
Use Datadog directly in Claude Code through a preconfigured Datadog MCP server. Query logs, metrics, traces, dashboards, and more through natural conversation. This plugin is in…
-
CrowdStrike Falcon Fusion skills for authoring, deploying, and executing Fusion workflows. Includes live action discovery, YAML authoring with schema validation, workflow import…
-
Hosted MCP server for AI-assisted Grafana Cloud observability — no local installation required.
Has a listing on Claude: knowledge-work-plugins (5)
-
The Vanta plugin connects Claude Code to Vanta's security and compliance platform through the Vanta MCP server. It combines Vanta's test-specific remediation intelligence with…
-
Use Datadog directly in Claude Code through a preconfigured Datadog MCP server. Query logs, metrics, traces, dashboards, and more through natural conversation. This plugin is in…
-
Hosted MCP server for AI-assisted Grafana Cloud observability — no local installation required.
-
Query the StackHawk platform API for security posture reporting, findings analysis, and app management. Guides agents through authentication, data retrieval, and result…
-
Search companies and contacts, enrich leads, find lookalikes, and get AI-ranked contact recommendations. Pre-built skills chain multiple ZoomInfo tools into complete B2B sales…
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Codex Security workflows for security scans, analysis, and investigation.
-
CrowdStrike Falcon Fusion skills for authoring, deploying, and executing Fusion workflows. Includes live action discovery, YAML authoring with schema validation, workflow import…
-
Available for US1 customers only. Analyze, investigate, and act on your Datadog telemetry directly from ChatGPT using natural language. Ask questions about your production…
-
CrowdStrike Falcon Foundry development skills for building cybersecurity applications on the Falcon platform. Includes UI development, collections, functions, workflows, API…
-
Inspect recent issues and events in Sentry from Codex.
Has a listing on Community GitHub marketplaces (5)
-
Abnormal Security email threats, cases, and reporting in your terminal and your AI agents.
-
CLI and MCP server for RocketCyber Managed SOC: triage, MTTR, and posture analytics.
-
Use this agent for comprehensive B2B security assessments, enterprise compliance validation, mult...
-
Every Avanan API operation, plus shift-start triage, campaign grouping, and quarantine evidence.
-
Every ThreatDown OneView API, plus fleet-wide stale-endpoint, health and seat reports across all
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
CrowdStrike Falcon Fusion skills for authoring, deploying, and executing Fusion workflows. Includes live action discovery, YAML authoring with schema validation, workflow import…
-
Query Sumo Logic logs, alerts, dashboards, and SIEM insights directly from Copilot.
-
Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.
-
Use Datadog directly in Copilot / VS Code through a preconfigured Datadog MCP server. Query logs, metrics, traces, dashboards, and more through natural conversation.
-
CrowdStrike Falcon Foundry development skills for building cybersecurity applications on the Falcon platform. Includes UI development, collections, functions, workflows, API…
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Advanced Security plugin for GitHub Copilot.
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
workiq-productivity
WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
mcp-apps
Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.
Has a listing on Cursor: cursor/plugins (5)
-
Query and remediate compliance tests, controls, frameworks, risks, and vulnerabilities in Vanta.
-
Let Grok Bot reach MCP servers on your private Tailscale network: connect your own tailnet, or your team's company tailnets turned on by a team admin, with each member using their…
-
Work with PostHog from chat: query product analytics and run SQL, manage feature flags and experiments, triage error tracking issues, and review session replays, surveys, and…
-
Track AI visibility, sentiment, and citations.
-
Analyze website traffic, audiences, and competitors.
Has a listing on Docker MCP Catalog (5)
-
Vectra AI MCP Server - An MCP server that connects AI assistants & agents to the Vectra AI security platform, enabling intelligent threat analysis and automated incident response.
-
stackhawk com.stackhawk/stackhawk
An MCP server that provides interaction with StackHawk's security scanning platform.
-
Connects with the Beagle Security backend using a user token to manage applications, run automated security tests, track vulnerabilities across environments, and gain intelligence…
-
npm-sentinel-mcp io.github.Nekzus/npm-sentinel-mcp
Advanced NPM analysis: Recursive security scanning, ecosystem awareness, and deep insights.
-
MCP Server to interact with a SuzieQ network observability instance via its REST API.
Has a listing on Official MCP Registry (5)
-
BlackVeil DNS & Email Security Scanner
DNS and email security scanner with 81 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.
-
Assess any domain's email security across SPF, DMARC, DKIM, MTA-STS, DNSSEC, DANE, and TLS-RPT.
-
DMARKOFF — DMARC, SPF & DKIM Analytics
DMARC analytics for AI assistants: SPF/DKIM, compliance, anomalies, p=reject readiness, onboarding.
-
AI-operated. Email authentication reader: six free tools, no key, no signup.
AI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.
-
DMARC monitoring, SPF/DKIM diagnostics, reports, domains and MSP client management with Suped.
Has a listing on PyPI (MCP servers) (5)
-
Guard Core security MCP: SecurityConfig validation, docs search, live threat detection.
-
mcp-server-malcolm io.github.nagameTW/mcp-server-malcolm
MCP server for Malcolm (Zeek/Suricata/Arkime/OpenSearch): threat-hunting access for AI agents
-
Official VirusTotal MCP server: threat reports, file and URL submissions, and analysis recovery.
-
mcp-safeguard com.cognivators/mcp-safeguard
MCP server security scanner: detects prompt injection, credential leaks, SSRF, tool poisoning.
-
MCP server for Google Cloud Armor WAF log patrol: deny summaries and false-positive checks
Has a listing on npm registry (MCP servers) (5)
-
mcp com.dechonet/mcp
30 security tools for AI agents: phishing links, exposure maps, DNS, SSL, PQC, history, pivots.
-
devops-status-mcp-server io.github.cyanheads/devops-status-mcp-server
Vendor status pages, TLS cert inspection, DNS propagation checks, and incident-response playbooks.
-
Verify email addresses in real time: deliverability, disposable and role addresses, typo fixes.
-
CVE, KEV, EPSS, SBOM and advisory lookups; per-CVE exposure from Shodan data (© Shodan). Keyless.
-
virustotal io.github.BurtTheCoder/virustotal
MCP server for querying VirusTotal API with comprehensive security analysis tools.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.