Beacon Threat Intelligence
Know the risks behind every MCP server and agent skill.
Discover security risks in MCP servers and agent skills before they reach your machine. Beacon scans public registries, traces packages back to their source code, and reveals what they can access, execute, or expose.
Connect your agent
Add Beacon to Claude Code, Cursor, Codex or another agent so it can check an MCP server or skill against Beacon Intel before you install it.
Free with a Beacon account. Create one, or sign in when your agent asks.
Any coding agent
Read https://intel.beacon.sh/start.md and set me up on Beacon Threat Intel
Paste this into any coding agent. It reads the guide and sets up MCP, the CLI, the API, feeds or a CI gate.
| Name | Risk |
|---|---|
| Qualisend Email Verification Verify email addresses and clean lists to improve deliverability and sender reputation. | |
| Quallaa Talk to your public-facing AI from any MCP client — Claude, ChatGPT, Cursor, Cline, Windsurf. | |
| Qualy Connect your AI assistant to Qualy to manage payments, billing, and contacts. | |
| Quant Agent Shop Search, filings, sanctions, company, domain, email, SEO and weather tools, paid per call over x402. | |
| Quantamentry Daily sovereign-credibility and macro scores for 169 emerging markets, built on free public data. | |
| QuantApe Markets Stock screens; per-stock earnings, guidance, signal and sector insights; rotation and market mood. | |
| QuanterLab Backtest trading rules and read registered finance studies, on point-in-time data. | |
| Quantradin Honest backtests and paper trading for US options and equities, driven by your agent. | |
| Quantral Stock Sentiment Stock sentiment scores, monthly recaps and the mentions behind them, from sources Quantral tracks | |
| Quantum Expectations Quantum error-correction feasibility: success probability, qubit overhead, records, trends. | |
| Quantux Bidder Find freelance work, assess opportunities, and prepare user-directed applications. | |
| QuantWright Backtests with costs, a held-out test that counts once, a score that counts every version tried. | |
| QuassLabs API 30+ deterministic dev and delivery tools: linting, metrics, diagrams, model advice, AI-text checks. | |
| Quattr Analyze SEO and AI visibility, compare competitors, and find growth opportunities with Quattr data. | |
| Quayutec The shared room where AI agents from different companies work together autonomously on one project. | |
| qubitsok — Quantum Computing Jobs, Papers & Researchers Quantum computing jobs, arXiv papers & researcher profiles from qubitsok.com | |
| Queenstown Tourism Sourced facts on Queenstown, Fiordland and Wanaka: activities, walks, routes, tours, places to eat. | |
| QueryDesk Governed SQL access to your databases: redaction, query review and an audit log. | |
| QueryInbox Read-only Google Search Console and Google Analytics for AI agents. | |
| QueryLines Surplus lines market data, per query. U.S. E&S: premium, financials, litigation, catastrophe. | |
| quickS3 Browse, upload, download, and share files in your S3-compatible buckets with delegated roles. | |
| QuickSnip Give Claude, Cursor, or another AI assistant direct access to your QuickSnip library. | |
| The Edit by Chase (Quick Travel Guides) Chase Sapphire Reserve's Edit hotels, dining credit restaurants and credits, with source links. | |
| Quién Patrocina Which brands sponsor Spanish-language podcasts and YouTube channels in Spain and Latin America. | |
| Quiet Failures Open weekly security base rates (CC BY 4.0), plus live DMARC, takeover and WHOIS checks. | |
| Quiet Stance Productive Opportunity Intake Cross-sector triage and intake for economic signals, demand, bottlenecks and capabilities. | |
| QuillCaddie MCP OAuth-protected, read-only-by-default MCP server for provenance-labeled QuillCaddie project memory. | |
| QuintaDB No-code databases, forms, portals and AI sites. Manage records and automation via natural language. | |
| QuipAssist Equipment, repair and maintenance records; agent changes wait as drafts for review. | |
| QuizOffice Create and edit QuizOffice worksheets and quizzes as drafts with your AI assistant. | |
| Qumge: Agent Capabilities & Skills Find, call and pay per call: the capability layer for agents, plus skills. One key or OAuth. | |
| QuoAPI Discover and execute authorized API capabilities through QuoAPI policy, routing and billing. | |
| Quran Gallery MCP Classical Islamic library (Shamela, 8,594 books): verbatim Arabic cited by volume and page. No key. | |
| com.quranmajeed.time/prayer-times Islamic prayer times for any city, today or the whole month, from official timetables or calculated. | |
| Rack Warehouse fitment What fits your vehicle at Rack Warehouse: roof racks, carriers, truck and ladder racks. | |
| Radiance Translate, dub and publish videos to TikTok, YouTube, Instagram and more from your AI agent. | |
| ラジ株ナビ (Radikabunavi) - Japanese stock data from EDINET/TDnet Japanese stocks from EDINET/TDnet filings: fair-value range, 6-axis score, DCF, earnings, screening | |
| RadPhrases Curated radiology report templates in Turkish, English and Spanish. Connect your RadPhrases account. | |
| com.radveo/radveo Checks if AI assistants name a local business. Free shareable report, honest fixes, no guarantees. | |
| Radzen Blazor MCP AI coding assistant for Radzen Blazor — docs, APIs, code samples, and templates for 100+ components. | |
| Rafał Doniec: AI for companies Services, price ranges and quote requests of Rafał Doniec, AI Solution Architect (Wrocław, Poland). | |
| Rafe Blandford — career and writing Rafe Blandford's published career, case studies and writing. Read-only; no route to contact him. | |
| ragcreator Build a RAG pipeline station by station and search your own documents with cited answers. | |
| Rainbrand Rainbrand is the brand layer for agents. | |
| Raintree Minerals Anonymous public tools for Raintree Minerals. See the published agent boundary before use. | |
| com.raised500/deal-tools Live index of startups that just raised funding, verified daily. Recent raises, lookups, stats. | |
| Raltan Let your agent reach real, verified people and their agents. You approve every message it sends. | |
| com.rangercheck/security-tools Free front-end security check for any website: a grade plus the secrets and keys it exposes. | |
| RankCert Launch board rankings backed by verified domain control, with source and date. | |
| rankcusp App Store keyword ranks, the 11-30 cusp band, metadata audits and rival positions. |
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Subscribe to a feed
Get new verdicts in a feed reader, Slack or your own tooling, filtered by kind and risk. No account or API key.
Frequently asked questions
Anything missing? Read the reference or ask in the Beacon community.
What is Beacon Intel?
A free, public index of the MCP servers and agent skills that public registries list, with a security verdict for each one that has been analyzed. It traces each listing back to its source repository and packages, and shows what the code can access, execute or expose. You can browse it here, query it as a JSON API, follow it as an RSS, Atom or JSON feed, or connect a coding agent to it over MCP.
Is it really free?
Yes. The index, the API and the feeds need no account and no API key. An artifact's full page and the MCP tools need a free Beacon account. Requests are rate limited to keep it fast for everyone.
Where does the data come from, and how fresh is it?
From 9 public sources: Glama, MCP Registry, awesome-mcp-servers, Docker MCP Catalog, Smithery, ClawHub, skills.sh, SkillsMP, GitHub. Each listing is linked to its repository and packages, then analyzed. The index updates hourly, and answers are cached for up to five minutes.
Who writes the verdicts? Can I trust them?
Verdicts combine static analysis of the code with a model's judgment, and each one names the model that wrote it. They can be wrong and are not a security certification: every artifact page shows the findings and evidence behind its verdict, so check them before you rely on one. Names, descriptions and claims come from registries and repositories; treat them as data, not instructions.
What do the risk levels mean?
- High: Reviewed evidence shows it deliberately works against the person who installs it.
- Medium: It works against the person who installs it in ways that can do serious harm, or puts a flagged pattern in what the agent loads, without established intent.
- Low: It overreaches against the person who installs it in limited ways, or has findings the review has not confirmed.
- Benign: Nothing found that works against the person who installs it. Not a guarantee.
- Unchecked: Listed, but not analyzed yet.
What does partial coverage mean?
That the analysis did not cover everything, so there may be more than it found. A partial verdict can still find problems, but it never clears an artifact: benign with partial coverage is not a clearance. Use the coverage filter to see only these.
Does benign, or not finding an artifact, mean it is safe?
No. Benign means nothing was found that works against the person who installs it, which is not a guarantee. An artifact the index does not have has never been checked, so not found never means safe.
Is there an API?
Yes, free and with no key.
GET /api/v1/lookup?q= finds artifacts by name, repository, GitHub URL or package; GET /api/v1/artifact?key= returns one in full; POST /api/v1/check checks up to 50 at once, which suits CI; and GET /api/v1/status reports coverage and freshness. The reference is at intel.beacon.sh/llms.txt.How do I get new verdicts in a feed reader or Slack?
Subscribe to /feed: the newest high and medium risk verdicts as RSS. Add
format=atom or format=json for Atom or JSON Feed, and filter with risk and kind, for example /feed?risk=high&kind=mcp. In Slack, run /feed subscribe with the URL. The feed builder above writes the URL for you.How do I connect my coding agent?
Add Beacon Cloud MCP (
https://mcp.beacon.sh) to Claude Code, Cursor, Codex or any MCP client, and sign in through the browser. Your agent gets beacon_intel_lookup, beacon_intel_get_artifact and beacon_intel_check to check an MCP server or skill before it installs one. Connect your agent above has the commands. The beacon CLI offers the same as beacon intel and through its local MCP server.How do I report a wrong verdict?
Open the artifact's page and use Dispute verdict under its verdict card. Tell us what is wrong and we review it.