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 |
|---|---|
| com.capitalgainstaxhq/site Capital Gains Tax HQ: the site's own MCP server — dataset, enquiry (enquiry = a human handoff,... | |
| CapitalSnitch SEC insider trades, Congress trades, 13F funds, earnings and 8-K filings for AI, with SEC links. | |
| CaptionPipe One call burns captions into your video. Hosted, prepaid, no subscription. MP4 plus SRT and VTT. | |
| CaptureOneAI Web Perception Give agents eyes on any web page: structured context, and changes explained in plain language. | |
| CarGene Japanese cars, sourced: genealogy, parts fitment, shaken and service shops, used cars, US import. | |
| Carat Hunter Latest prices for one certified diamond across 100+ retailers: search, cert lookup, market prices. | |
| com.carbikly/site Carbikly: the site's own MCP server — dataset; every answer cites the site. | |
| DealScore For AI agents: grade a used car's asking price vs live market comps. | |
| CardNexus Search trading card prices, build carts and manage a CardNexus store. You pay on cardnexus.com. | |
| CardVolume Verified trading card sales and prices by grade: Pokemon, Magic, Yu-Gi-Oh!, sports, Harry Potter. | |
| Career Bhavan — Indian courses & colleges Search Indian courses, colleges and online universities: fees, approvals, syllabus, comparisons. | |
| CarePlanKit — Nursing Care Plans Nursing care plans for students: diagnoses, SMART goals, interventions with rationale, sources. | |
| CareRanks Data CMS quality ratings, payer-negotiated prices, and clinician data for 41K+ US healthcare facilities. | |
| com.cargovox/mcp CargoVox freight tracking and shipment info via AI agents | |
| Car Handshake Search and compare live vehicles from participating US and Canadian dealers outside Quebec. | |
| CarHauler247 Car Shipping Quotes Car shipping prices between US locations from a licensed auto transport broker, with a booking link. | |
| Caribooks (QuickBooks Online) QuickBooks Online in Claude and ChatGPT: 221 tools, full ledger, multi-company, Canada + US, FR/EN. | |
| Carragent Carragent's AI agents for small businesses, its plans and prices. Read-only, no key. | |
| CarRentalList Exotic car rentals from independent US companies: fleets, published daily rates, rental terms. | |
| CarrierScrub Check a US motor carrier's FMCSA authority, insurance and safety record: a dated GO/CAUTION/STOP. | |
| CarrierTrail US carrier lookup from public FMCSA data: USDOT/MC records, authority, insurance, safety. | |
| CarsMultiverse — the recall record Vehicle safety recalls from four registers, matched across borders on the maker's own code. | |
| CARTO Query your data warehouses, run workflows, and render maps from your CARTO workspace. | |
| CartRevolt Find, check and post community deals on CartRevolt as yourself, with the website's own checks. | |
| Outdoor Kitchen Designer Plan a built-in grill and outdoor kitchen: real MSRP, priced layouts, 3D renders and dealer quotes. | |
| Casafari AgentGraph AI Agency and agent analysis, verified businesses only. Sign up at platform.casafari.com. | |
| Casafari Area Insights Property price trends and market stats by area. Sign up free at platform.casafari.com. | |
| Claro AI by Casafari Commercial premises search for expansion teams: plain-words briefs, exact counts, quoted evidence. | |
| Casafari Comparables Comparables and valuations for European homes. Sign up free at platform.casafari.com. | |
| Casafari Location Lookup Place names to Casafari location ids, free. Sign up at platform.casafari.com. | |
| Casafari MCP Property data intelligence, built for AI agents: Europe's most complete property index. | |
| CasaPrivat Find homes sold by owners in Spain and France. Messages to owners need buyer consent; rate-limited. | |
| CVE Intelligence by Casco Free CVE lookup, dependency vulnerability checks, and CVE updates. No signup or API key. | |
| CaseDaleel — UAE legal information Read-only UAE legal information: official routes, practical guides, free tools and FAQs. | |
| Cash Flow Frog Cash flow forecasting: manage scenarios, projections, and bank accounts for your company. | |
| CasitaTax Spanish non-resident tax on a home in Spain: Modelo 210 estimate, deadlines, town cadastral data | |
| com.caspchecklist/site CASP Checklist: the site's own MCP server — checker, enquiry (enquiry = a human handoff, not a... | |
| Caspio Your Caspio data is MCP-enabled. Bring any dataset and put your AI assistants to work. No coding. | |
| Cassie Hour Explore Cassie Hour’s novel, song, AI lineages, consciousness and soul through public evidence. | |
| com.catchintent/catchintent The intent layer for B2B outbound. Find, triage, and act on warmth-scored leads. | |
| Catch of a Lifetime Plan outdoor outings with live conditions, and draft and promote outings as a host. | |
| CatchUI What is this UI element called? 50 curated UI patterns, names per platform, build prompts. EN/中文. | |
| CaudexCatena MCP Blockchain intelligence for tracing funds, screening addresses, and investigating on-chain activity. | |
| Causerie Create, train and publish AI chatbots for your website from Claude, ChatGPT or any MCP client. | |
| com.cautellus/scam-detection Scam and phishing detection for AI agents: safe/warn/danger verdicts for URLs and messages. | |
| Cavuno MCP Connect Claude, Cursor, Codex, and other MCP clients to manage your Cavuno job board. | |
| AgentNative: Public Data, Government Datasets, Federal Statistics & Official Records Normalized official data with provenance, aggregations, insights, free samples and agent access. | |
| AgentNative: Public Data, Government Datasets, Federal Statistics & Official Records Normalized official data with provenance, aggregations, insights, free samples and agent access. | |
| Free Official Data Samples, Provenance, Aggregations & Insights Official data with free samples, provenance, aggregations, freshness and agent-ready insights. | |
| CData Connect AI Cloud-hosted MCP server for secure AI access to enterprise data sources via CData Connect AI. |
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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.