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 |
|---|---|
| Simafri Suite Professional email, calendar, contacts and files on your own domain. | |
| SimoraGo travel eSIM plans Search and compare travel eSIM plans for 26 destinations: price, daily cap, hotspot rule, networks. | |
| Simple China Trip How foreigners book 135 China attractions: official channels, passport rules, ticket release times. | |
| Shepherd Bible API Bible translations, books, chapters, verses, and search | |
| Simple Easy Transactions agent checks Agent payment readiness and AI visibility checks, $1 per call over MPP or prepaid credits. | |
| Simple Fatoora Saudi e-invoicing: invoices, quotations, sales and VAT reports, and ZATCA Phase 2. | |
| SimpleFeed MCP Search rights-cleared news and video from entitled publisher catalogs. | |
| SimpleFeed MCP Free Discovery Free discovery search of rights-cleared news across entitled catalogs. | |
| SimpleNPI Free NPI lookup and verification (CMS registry) and free NPI applications filed for you. | |
| Simple Numerology API Pythagorean numerology charts, personal cycles and compatibility from a name and a birthdate. | |
| SimplePDF Find your PDF forms, read their fields, prefill them for review and retrieve submissions | |
| Simpliers Giveaway Run transparent giveaways on Instagram, X, TikTok and YouTube posts. Draw in your browser. | |
| SimplOrg: Easy Org Chart Turn a description of your team into an editable org chart. Free, no signup. | |
| SimplyWarmup Hosted MCP server for inbox health, reporting, and warmup operations. | |
| SingleFax Send a fax from Claude, ChatGPT, or Cursor. Upload a PDF, pay, get delivery status. | |
| uml.singsk.com PlantUML Render, validate, encode/decode PlantUML diagram-as-code; 22 diagram types. Free, no auth. | |
| Sinh Vũ Studio Sinh Vũ Studio (Vietnam brand design): services, sectors, cases, price bands, articles. Read-only. | |
| Siporpro Find verified doctors, dentists, lawyers and accountants; see free times; request a booking. | |
| Thema: Astrology Software Astrology charts and classical techniques: natal, transits, horary, primary directions | |
| Sirfus Find one verified local pro for anyone: plumbers, roofers, cleaners, 110+ services. Free. | |
| Sisense Query your Sisense data in natural language and build charts, dashboards and Pulse workflows. | |
| Sissoo Find wellbeing sessions with independent practitioners: free times, prices and booking links. | |
| Sitecomb A quality score out of 100 for any website, plus the areas that need work. | |
| Sitegoalie Monitor and maintain client WordPress sites: updates, uptime, PHP errors, performance and reports. | |
| Siteiz Check which AI crawlers a site allows and see pages the way AI crawlers do. Free, read-only. | |
| Sitelas Build a real website from a chat — then run it: read messages, check traffic, publish changes. | |
| SitePatent Search the SitePatent directory of websites and tools. Read-only, no API key. | |
| Site Qwality Manage uptime monitors and incidents and search logs, metrics and traces from an AI assistant. | |
| Sitesfare Connect Edit, restyle, publish and host Sitesfare websites — text, photos, colours, CSS and own-code sites. | |
| SitesPlaced Build, edit, and publish real websites and online stores by chatting with your AI assistant. | |
| com.sittingly/site Sittingly: the site's own MCP server — dataset; every answer cites the site. | |
| Wisdom Web by Six Eight Verified public-domain quotes, scripture with its licence, and one small next step. | |
| Sixteen Bridges Bubbles: save chat context once, use it in ChatGPT, Claude, Gemini, Grok, Perplexity and Cursor. | |
| Shopify Speed Check Shopify speed, Core Web Vitals and fee checks by Skai Digital, a Shopify Select Partner in Oslo. | |
| Skamper Curated UK running routes — search, recommend and find trail, road and parkrun runs. | |
| Skateboard Personalizado Turn your artwork into a real custom skateboard deck, shown assembled in 3D, with a link to order. | |
| Sketchlib Search a large 3D model library and download converted GLB/FBX/USDZ assets via signed URLs. | |
| ski-france.com Agent Search Ski apartment search with one- or two-week prices, availability, destinations and ski passes. | |
| Skillforge Render API Screenshot, PDF, OG-image, and page extraction (markdown/JSON) over MCP. Bearer key or x402. | |
| Skillsail Create, edit, translate, and export SCORM eLearning modules from a connected AI assistant. | |
| SkillsPicker Recommends open-license agent skills (SKILL.md) for a project from its stack and task tags. | |
| SkimmerDB Search and SQL on object storage: full-text, vector and hybrid search plus SQL over your data. | |
| SkimNews Free AI-curated news summaries from 100+ sources across seven beats, plus entity dossiers. | |
| SkinGrind CS2 skin prices, case odds and ROI, Armory value, and Trade Up contracts. | |
| SkipCalls Manage your SkipCalls AI receptionists, calls, contacts, and calendars. | |
| Skiplagged MCP Skiplagged MCP Server for flight search, hotel booking, and travel planning | |
| com.skipseek/skipseek Polymarket, Manifold, Metaculus compared: one fair probability per question. No API key needed. | |
| com.skitransferquotes/site Ski Transfer Quotes: the site's own MCP server — enquiry (enquiry = a human handoff, not a... | |
| com.skulayer/skulayer Preview-first feed optimization for retailers and agencies: audit, fix and serve product feeds. | |
| Skyalo Travel Connectivity Guide Estimate mobile-data needs and build a provider-neutral connectivity checklist for any trip. |
34,801–34,850 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.