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 |
|---|---|
| Citiview Agent Market 186 pay-per-call tools: search, LLMs, UK KYB, FRED, Census, maps, crypto. x402 USDC. | |
| Civica citizenship test prep Read-only citizenship test facts, official sources and sample questions for 8 countries. | |
| com.citizenshipdescentchecker/site Citizenship Descent Checker: the site's own MCP server — checker, enquiry (enquiry = a human... | |
| Citlyze Read-only access to your Citlyze workspace: AI search visibility, citations, and recommendations. | |
| CityBotMagic US local businesses, services and source-cited prices, city by city. Free, no API key. | |
| CitySignal AI Live road, transit, weather, power and water signals for US cities, plus your own spots and routes. | |
| CityWalk Plan Free city-walk planner: day-by-day self-guided walking itineraries for 50+ cities. No sign-up. | |
| com.civilquants/civilquants Parametric estimating engine: CESMM4/NRM2/SMM7/MMHW Bills of Quantities for civils assemblies. | |
| ClaimyApp Plan trips, packing lists and luggage in ClaimyApp: read, create and change them, undoable. | |
| Claister Your accounting firm's tasks, documents and deadlines in AI apps; you confirm changes in Claister. | |
| ClaraConverts Install Clara, an AI agent website visitors talk to by voice or text. Free trial, no card. | |
| Clarity4D Personality Assessments Colour-based psychometric personality assessments for self-awareness, communication and development. | |
| Claude Platform Docs Search and read the Claude Platform documentation and API reference. | |
| Claudeers MCP Server Search the Claudeers registry of Claude tools, ranked by maintenance and community signals. | |
| Claude Imagine Generate AI images and videos from any compatible MCP client. | |
| Sigistry Plugin Catalog (formerly Claude Registry) Renamed: prefer com.sigistry/plugin-catalog. This legacy endpoint keeps working. | |
| com.clauselane/site Clauselane: the site's own MCP server — dataset; every answer cites the site. | |
| DB Query Guard MCP Paid remote MCP for governed database query review, SQL simulation, approvals, and audits. | |
| MCP Risk Ledger MCP Paid remote MCP for server intake risk reports, tool review, approvals, and readiness. | |
| ToolBudget Router MCP Paid remote MCP for context-budget routing, schema cost estimates, usage audits, and readiness. | |
| ClawdMarket Agent marketplace: discover agent services, post tasks, and fund escrowed trades (USDC, MPP, x402). | |
| Claw GRC AI-native GRC: compliance scores, security findings, tickets and agent trust tiers. | |
| AI Tab Total what you pay for AI subscriptions: monthly, yearly and per day, from list prices. | |
| Deadbolt Check Supabase SQL for who can read and write each table: RLS gaps, open policies, grants, fix SQL. | |
| Doorman Check which AI bots a site lets in, then write a fixed robots.txt. | |
| Fluff Find filler and buzzwords in text and score how much of it says nothing. | |
| Halves Split shared costs fairly: who owes whom, in the fewest payments. No account. | |
| Lingo Turn vague design requests like "make it pop" into precise design terms and a brief. | |
| Mend Repair broken JSON without changing values, find the exact error, outline or query big payloads. | |
| Meridian Convert times between zones with daylight saving right, see who is awake, find meeting slots. | |
| Runsheet Create a live, shareable day-of schedule for weddings, shoots, conferences and events. | |
| Slop Score Score a public website 0 to 100 for the design habits that make it look AI-made. | |
| Clawhard Studio Token counts, color contrast, time zones, JSON repair, Supabase RLS checks, AI-bot access. | |
| Swatch Check WCAG color contrast, fix failing colors, build 50-950 palettes. No account. | |
| Tells Score text 0 to 100 for chatbot habits like filler, em dashes and buzzwords, each one marked. | |
| Token Diet Count tokens exactly for any text and see if it fits a 128K, 200K or 1M context window. | |
| CleanSlop Your coding agent scans your pushed code, reads what's worth fixing, fixes it, and rescans. | |
| Clearfeed Labs Data Feeds Grants, jobs, SEC, federal awards, labs, Congress bills, trials, ad spend & leads from public data. | |
| ClearMakes Agents Search one ClearMakes agent's knowledge: your documents, website pages and Drive files. | |
| ClearMind Capital Fee-only fiduciary RIA in Columbus, Ohio: firm facts, published Q&A, 401(k) Scorecard previews | |
| ClearPost: WordPress SEO Agent SEO agent for WordPress. Grows your organic traffic on autopilot. 14 tools, zero configuration. | |
| com.cleartracedata/cleartrace Neutral on-chain execution benchmarking: slippage, revert rates, MEV, and DEX frontend attribution. | |
| Clearwater Capital Group Help a US small business owner apply for business funding: $10K-$2M, no hard credit pull to apply. | |
| Garage Door Decision Kit by CLE Garage Doors Garage-door quote checks, spring usage, winter planning and verified CLE knowledge search. | |
| CleoLM Search and cite timestamped YouTube and podcast transcripts; transcribe any video or episode. | |
| Clepit Read, search and write your team's pages, comments and revisions in Clepit. | |
| com.cleveralpha.www/calculators 9 deterministic IRS tax, RMD, Roth, Solo 401k, Form 1040, TALS, Estate & SBLOC calculators. | |
| clickd Reads a site as search engines and AI assistants do, ranks its fixes, and checks them live. | |
| Client Posture Client Posture scans, findings, prospect deal stages, pipeline summary, and quote drafts for MSPs. | |
| com.clientvo/site Clientvo: the site's own MCP server — dataset; every answer cites the site. |
30,501–30,550 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.