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.
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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.
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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 |
|---|---|
| CyberMax Data Free US data lookups: ZIP demographics, CISA KEV/EPSS CVEs, domain rank, county spending, recalls. | |
| Deltawren Daily data feeds MCP: CISA KEV+EPSS, SEC Form 4, 10-K sections, domain ranks. Keys $19/mo. | |
| DomainDNA Tech stack, email security (SPF, DMARC, MX provider) and domain age API + MCP. 25 free domains/day. | |
| Dutyfinch US tariff API + MCP: HTS duty rates, Section 301 lists. Keys $19/mo; 50 free calls a day. | |
| Dutyfinch Tariff Lookup US import duty and HTS codes from the official USITC schedule, plus Section 301 China status. Free. | |
| Feedpeck: RSS Feed Finder & Reader by Website Feedpeck: find any site's RSS/Atom/JSON feeds + latest posts. Free, no key. | |
| Fieldwright Fieldwright: web page to clean Markdown, metadata, JSON-LD, emails, phones. | |
| Figurewell Point-in-time SEC financials API + MCP: XBRL as first reported, EDGAR times. 100 free/day. | |
| Frontpeek: Hacker News Front Page + Mentions — stories, scores, links Hacker News front page and search: stories, points, comments, and which stories link to your domain. | |
| Haulroll FMCSA carrier vetting API + MCP: authority, insurance, OOS. Keys $19/mo; 50 free calls/day. | |
| HireHeat Company hiring signals + open jobs from Greenhouse, Lever, Ashby boards, API + MCP. 20 free/day. | |
| Insidewell Insider trading API + MCP: SEC Form 4 buys/sells, cluster buys. Keys $19/mo; 100 free/day. | |
| Kevscope CVE patch-priority API + MCP: CISA KEV, EPSS, CVSS, SSVC. Keys $19/mo; 200 free calls/day. | |
| Kevscope CVE Check Is a CVE exploited? CISA KEV, FIRST EPSS, CVSS and SSVC with a patch-first verdict. Free, no key. | |
| Keyfern: Keyword Ideas & Autocomplete — Google, YouTube, Amazon Keyword ideas from Google/YouTube/Bing/Amazon autocomplete, with intent and trend verdict. | |
| Leafmelt PDF/Word/Excel/HTML to clean Markdown for LLMs and RAG. Keys $19/mo; 50 free calls a day. | |
| Ledgermoor Table to Excel Turn any table into a real .xlsx or CSV file: numbers stay numbers, header frozen. Free, no storage. | |
| Linkheft Domain authority API + MCP: 0-100 score, rank, trend, 50/call. $19/mo; 1,000 free lookups/day. | |
| Logolark: Company Logo API & Favicon Finder by Domain Logolark: company domain to logo, square icon and brand colour. Free tier; paid keys. | |
| Mailvett: Email Validation API for AI Agents Mailvett: validate emails. MX, provider, disposable/role/free flags, typo fix, verdict. | |
| Unfurlwren: Meta Tags Extractor — titles, descriptions, Open Graph Titles, meta descriptions, canonical, Open Graph and Twitter tags of many pages, with an SEO score. | |
| Namewhere Company name to domain API + MCP: official website, confidence, evidence. $5 pack; 25 free/day. | |
| Orbitwren Orbital data center & space AI compute tracker MCP: projects, launches, orbits, alerts. 100 free/day | |
| Pinloft: Batch Geocoder — Address to Lat/Long + Census FIPS Pinloft: US address to lat/lon, county, FIPS; reverse geocoding. Free, no key. | |
| Pricewick Competitor price & stock monitor MCP: check any product page. Free 5 products; $9.99/mo. | |
| Printwren: HTML to PDF and URL to PDF (real Chrome) Printwren: web page or HTML to PDF with real Chrome; pages, base64 or download link. Free, no key. | |
| Recallroll VIN recall API + MCP: VIN decode + every NHTSA recall, Do Not Drive first. $19/mo; 50 free/day. | |
| Recapwren Client Reports Weekly client reports: change, % change, targets, status, printable page and email text. Free. | |
| Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark | |
| Shiftmoor Website change monitor MCP: see what changed on any public page. Free 3 pages; $4.99/mo. | |
| Sitemoss: Sitemap URL Extractor — every page URL of a site Every page URL of a website from its own sitemaps, following sitemap indexes, with lastmod dates. | |
| Sumbloom Number puzzle API + MCP: solver-checked puzzles as JSON/SVG, daily puzzle. $5/mo; 50 free/day. | |
| Swellmeter Trending Google trending searches API + MCP: 30 countries, day lists, 30-day history. $5 pack; 50 free/day. | |
| Bouncefern: Bulk URL Status Checker — broken links, redirects, loops Check many URLs at once: HTTP status, redirect chains and loops, so you see which links break. | |
| Eldwren: Wayback Machine History — how old a site is, what it looked like Wayback Machine history of any website: first and last capture, snapshot rows, how old the site is. | |
| Hollerdex: Website Contact Finder (Emails, Phones & Socials) Hollerdex: a domain's public emails, phones and social profiles as one ranked contact card. | |
| Capturewren: Website Screenshot API for AI Agents (Image + Text) Capturewren: screenshot any URL (banners removed) plus status, title and clean page text for agents. | |
| Ziplore: US ZIP Code API (county, time zone, demographics, radius) Ziplore: US ZIP to county, FIPS, time zone, Census demographics; radius and city ZIPs. Free, no key. | |
| dealcheck: US property deal-check Any US address: flood, HUD rent, county tax. Parcel zoning/STR rules: Nashville, Denver, Scottsdale. | |
| HLWatch Hyperliquid Wallet Tracker Live Hyperliquid wallet positions, recent trades with PnL, and fill alerts to Discord/Telegram. | |
| KLane Perp Funding Rates Live perp funding rates across 6 venues (Hyperliquid, Binance, Bybit, Lighter...) and arbitrage. | |
| KRTools Korean Utilities Korean name/text romanization, Korean address to English, business number (BRN) check. | |
| ListingLane Real Estate Listing Writer MLS-ready, Fair-Housing-safe property listing descriptions (en/ko/es) and wording checks. | |
| UpLane Website Uptime Checker Check if any website is up (status, latency, redirects, security headers) and set uptime alerts. | |
| Celadon Wholesale Korean skincare wholesale for spas, salons and retailers in the US and Canada, by the case. | |
| DESK LEAD x402 — high-ticket packs $50/$100/$150 ~17 tools; HT packs $50/$100/$150. tools/list free; tools/call USDC Base x402. Not financial advice. | |
| dev.workers.dolerite.base-onchain-tools/base-onchain-tools Base mainnet analysis: contract audits, transfer simulation, token pricing. Paid via x402. | |
| Custody Calendar Maker Custody schedules (2-2-3, 2-2-5-5, week on/off) as a year calendar both co-parents can subscribe to | |
| AgentKit x402 - pay-per-call tools for agents Email, DNS, SPF/DMARC, site contacts, Markdown, IBAN, Swedish validators. Pay per call (x402). | |
| PageWatch - page-to-data extraction and change monitoring Extract prices, lists, tables, events from static pages and watch them for changes. |
37,101–37,150 of 50,909
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.