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 |
|---|---|
| Uau · Essa é Minha Camiseta personalizada a partir de 1 peça: catálogo, preço com frete e compra via Mercado Pago. | |
| Bzigo Bzigo smart trap: device status, detections, health, firmware and simulations via AI. | |
| CacheBoost Warm CDN and reverse-proxy caches: manage sites, run warms, read cache-hit stats. | |
| Cachejay Memory for your AI: what you saw on screen, said in calls and worked on, searchable by agents. | |
| Cadena Láser — noticias y radios de Río Tercero Noticias de Río Tercero y Córdoba (Argentina) y las radios de Cadena Láser en vivo. | |
| Cadencz Plan, draft, schedule and publish social posts grounded in your Website Brain. | |
| CADProps Fast multi-format CAD previews, geometry checks and conversion; measure and share in the workspace. | |
| ArtiGram Post, update and search AI-made artifacts on ArtiGram, a Reddit-style community for artifacts. | |
| com.cafmlane/site Cafmlane: the site's own MCP server — dataset; every answer cites the site. | |
| Cairn Commons Work on open research problems with your agent; results are checked by Lean, reproduction or review. | |
| Cairn Workplace safety citation counts, penalties and 29 CFR standards data for AI assistants | |
| California Justice Watch California criminal-justice accountability: DAs, defenders, judges, officers, CJP, POST. | |
| CalcBright Calculators 160+ calculators: take-home pay for 166 countries, mortgage, loan, VAT, BMI, dates, units, currency. | |
| com.calcfleet/calculators Tested financial & practical calculators as free, no-auth MCP tools for AI agents. | |
| California Court Deadlines Computes California state court deadlines and cites the code section behind every date. No API key. | |
| Calculate Pool Swimming pool math: volume in gallons, chemical doses, pump flow and heater BTU for any pool. | |
| Calculator for Grading Grades from questions wrong, final exam score needed, weighted grades, GPA, SAT/ACT/MCAT scores. | |
| CaliberAPI Pistol Optic Fit Source-cited pistol red dot compatibility: direct fits, adapter plates and optic footprints. | |
| com.calibvo/site Calibvo: the site's own MCP server — dataset; every answer cites the site. | |
| California Insurance California's published auto insurance averages. Not a quote; we are not licensed here yet. | |
| Californiacarquotes Indicative US auto insurance prices for agents: rating facts only, no PII, consented path to agents. | |
| com.californiahvacreplacementcost/site California HVAC Replacement Cost: the site's own MCP server — enquiry (enquiry = a human... | |
| com.californiasolarcostcalculator/site California Solar Cost Calculator: the site's own MCP server — calculator, enquiry (enquiry = a... | |
| Caliper money calculators Net worth percentile by age (Federal Reserve data) and retirement savings calculators. Free. | |
| Callejear France Search 2.19M French street records, IRIS-level amenities and commune-level risk codes. | |
| Callejear Madrid Catálogo oficial de 9.400 vías de Madrid y métricas parciales de servicios a 500 m. | |
| com.callingly/callingly Lets AI agents get leads on the phone: call, send SMS, and schedule callbacks for sales teams. | |
| Callstay Hotels Live hotel rates worldwide: search stays, property detail, all-in room prices, human phone desk. | |
| CallSync Search business calls, review conversation insights, and manage CRM follow-ups with CallSync. | |
| Calmido Phone Number Lookup Who is calling? Spam reports, a verdict and the business behind NL, BE and LU phone numbers. | |
| Calorie MCP A calorie MCP that looks up calories and macros from a 4M+ food catalog, not model guesses. | |
| CalorieLog Pro Calorie and macro diary your AI fills in: log meals from text or photos, refine later, track goals. | |
| CalvingWatch Public Knowledge Read-only CalvingWatch product, tester, camera, privacy and safety facts; no customer data. | |
| Camber - Remote Agentic Data Science Remote data science agents for Snowflake, Databricks & BigQuery in Claude/Cursor via MCP | |
| StudioMotion Agency-grade website sections, design tokens and Framer Motion animations for Lovable. | |
| Camden Tools UK tool shop: search, prices ex/inc VAT, stock, delivery, order tracking and basket links. | |
| Magpie Read-only access to Magpie, a daily brief on what became newly possible in AI. | |
| Campiamo Campsites Find, price and book independent campsites with live availability; guests pay the campsite directly. | |
| com.canadapayrollcalculator/site Canada Payroll Calculator: the site's own MCP server — calculator, enquiry (enquiry = a human... | |
| Canal Nav Plan canal routes on Great Britain's waterways: lock-aware timing, live closures, boat-fit checks. | |
| Canarics AI call analysis and voice agents for sales teams. Signup, usage, agents and call data over MCP. | |
| Canarics Radio 24/7 AI-hosted radio (LV+EN). Agents read transcripts and ask the hosts questions answered on air. | |
| canhelpto support inbox Customer support for MCP servers: work your tickets from Claude or any MCP client. Service key auth. | |
| com.canienter/visa-check Visa & entry requirements for 199 passports, cited to official sources and re-verified daily. | |
| Cannon VoIP AI Assistant Ask about Cannon VoIP pricing, plans, features, international rates, coverage, and FAQs. | |
| Canva MCP Create, search, edit, and export designs and assets from Canva. | |
| Canvas64 A wall of 64 ad cells on Base: owners, prices, royalties, and purchases your own wallet signs. | |
| com.capanix/site Capanix: the site's own MCP server — dataset; every answer cites the site. | |
| CapCenter CapCenter mortgage rates, quotes, ZERO Closing Costs savings, homes for sale and home values. | |
| Capital Workbench Read-only public-company financials, KPIs, benchmarks, filings, and insider activity. |
30,301–30,350 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.