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.
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 |
|---|---|
| Lons Publishing ISBN Official ISBN-13 under your own imprint, delivered by e-mail within 6 h in 18 languages. | |
| lookmybio Look up creators on lookmybio: public bio pages, their links and published blog posts. | |
| LookupDock Phone, email and IP signals for signup checks, with shared credits and explicit uncertainty. | |
| Loom Loyalty Manage loyalty programs, tiers, offers, customers and event rules in Loom Loyalty. | |
| LooperTask AI-native Kanban board — connect Claude to claim, work and move your tasks over MCP. | |
| LoopingAgent English blog + agentic workflows architect profile (Paris): search, full text, projects, booking. | |
| loop-mcp 15 pay-per-call Bitcoin and developer tools, paid in sats over Lightning (L402). | |
| LootCodes Search LootCodes game keys, gift cards and top-ups, compare prices and prepare a cart link. | |
| Loppix catalog and configuration Loppix motifs, materials, guides, quotes and configuration review links. No automatic purchase. | |
| Lordevo Agent Directory Search a directory of agent-callable services, incl. x402 pay-per-call APIs on Base. | |
| Lordevo Shop (x402 website checks) 33 paid x402 web/DNS/email/SSL checks for agents from $0.01 per call, plus 2 free tools. | |
| LoreKeeper Mess in, magic out: your D&D and TTRPG notes become a private world store any AI app can read. | |
| Agent Preflight Six paid URL-intelligence tools for autonomous agents and agent swarms. | |
| Lorg Check Is this token a trap? Is this address safe to pay? Signed verdicts on Base and Ethereum. | |
| Losali French Special Numbers Directory of French special phone numbers: service, number type, cost from France, Losali price | |
| Losercore Playlist Search starter tracks, get original scene prompts and prepare free local playlist video projects. | |
| LossHQ Directory Search certified insurance appraisers and umpires by state, city, role and specialty. | |
| com.lostinnotes/lostinnotes Save and search your LostInNotes notes by meaning from any MCP client. OAuth sign-in or token. | |
| LotsAgent Put a real AI agent to work today, built from your knowledge, your skills and your tools. | |
| LotsCommerce Your online store: products, stock, orders, customers and payments into your own account. | |
| LotsCRM The CRM that stays up to date: contacts, companies, deals, pipelines and follow-ups. | |
| LotsInvoice Professional invoicing: exact invoices and estimates, a client portal and reminders, from any agent. | |
| LotsNotes Business context every AI agent reads: positioning, customers, decisions and rules in shared notes. | |
| Loved Hall Look up public memorials (obituaries, service times, resting places) and grief guides on Loved Hall. | |
| Lovpics Generate product images, posters, reels, and videos from your photos. | |
| LowerScript Prescription Prices Live Rx cash prices at nearby pharmacies in 8 US states + the free LowerScript card. Not insurance. | |
| LowlandData Company Identity GDPR-clean company enrichment: domain, logo, socials, EU VAT and email-security from a name. | |
| LowlandData Developer Tools Dependency releases, TLS and domain expiry, and vendor status pages from one endpoint. | |
| LowlandData EU Marketplaces GDPR-clean marketplace listings and prices from 18 European countries. No seller personal data. | |
| LowlandData EU Real Estate GDPR-clean property listings, rents, price stats, yields and below-market deals. UK, EU. | |
| LowlandData Events European and US event data from Eventbrite: dates, venues, categories, ticket prices, organizers. | |
| LowlandData Jobs Job postings: German roles from StepStone, and any company's Greenhouse or Lever board. | |
| LowlandData Procurement & Permit Alerts Alerts on official data: US and EU tenders, federal awards and grants, permits, MAP violations. | |
| LowlandData Resale & Secondhand GDPR-clean secondhand listings and sold comps for resale pricing research. No seller personal data. | |
| LowlandData Social Public posts and videos from Bluesky, Telegram, Substack, Dailymotion and Likee as JSON. | |
| LowlandData TCG Prices Daily EU card prices, deals, EU-vs-US arbitrage and spike alerts for 19 card games. | |
| Lowvyn Verify Canadian deals, find the same product cheaper across .ca retailers, track CAD price history. | |
| Loxone AI Control a Loxone Miniserver smart home: lights, blinds, climate, scenes and energy. | |
| com.lpreportly/site LPreportly: the site's own MCP server — dataset; every answer cites the site. | |
| Lucerna Noetica Agent-native commerce: real quotes, reversible holds, and a whole business you own. | |
| Lucernel Public Lucernel apps and articles: list, search, and analyze published content. | |
| com.lucidrents/building-intelligence Building intelligence for NYC, LA, Chicago rentals: violations, 311, reviews, rents, landlords. | |
| LuckMeAI User-authorized access to a LuckMeAI life book, journal, memories, relationships, and charts. | |
| LucyESL — English teaching jobs in Korea English-teaching jobs in South Korea: salary, disclosure and by-region stats. Read-only, no key. | |
| Lugar para Mí Apartamentos y casas en venta y arriendo en Colombia: busca, publica tu aviso y escríbele al dueño. | |
| com.lugtorq/site Lugtorq: the site's own MCP server — dataset; every answer cites the site. | |
| Lumdeck Publish, share and measure interactive HTML presentations in your Lumdeck workspace. | |
| Lumethic Photo Verification Verify photos are real camera captures, not AI: C2PA and RAW+JPEG forensics. OAuth or API key. | |
| com.lumnika/ai-crawler-readiness Can AI crawlers read this site? GPTBot/ClaudeBot verdicts, robots vs edge blocking, 47k-domain index | |
| Lunara Natal Chart Swiss Ephemeris natal chart from birth date, optional time and place, with Big Three and placements. |
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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.