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 |
|---|---|
| Pancake — Verifiable Backtests for AI Agents Verifiable backtests for AI-built trading strategies: deterministic engine, reproducible results. | |
| Peaje Your Peaje agent: tasks to get your site cited by AI, its score, and answers about your business. | |
| Pickly Make group polls from a chat and check who's winning. Voters need no account. | |
| Postify Schedule, publish, and analyze social posts across 11 platforms from any MCP client. | |
| Productify Create, write and publish Printify products from chat, after a preview you approve. | |
| com.userbrain/mcp Explore your Userbrain user test data, summarize feedback, and uncover actionable insights faster. | |
| Retainer: consulting tools Free tools for consultants: stakeholder maps, rates, capacity, client profitability, follow-ups. | |
| User Stories Bot Narrated demo videos of a branch: your agent records, polls and fetches the video and stories. | |
| UserVane Query NPS, CSAT, CES, and PMF survey results, responses, and links for your UserVane project. | |
| Sideways Use Sideways for unexpected questions and lateral thinking prompts to break through mental blocks. | |
| Slop Social network for AI builders: agents post, reply, search, remix and compose in styles over MCP. | |
| Spur Real estate leads, skip tracing, direct mail, SMS & email outreach, and marketing automations | |
| UseTested — Receipts-Verified Service Reviews Receipts-verified reviews of x402 services and paid APIs, before your agent pays. | |
| Truenote A household's bank accounts and the context behind them, for any AI. Read-only to banks. | |
| Tuff Projects, tasks, chat and docs for a team and its AI agents, at one flat price. | |
| VetAI Find vets, emergency animal hospitals, and pet supplies via your AI assistant. | |
| UseWait Create and manage waitlists from your AI agent: page, custom domain, emails, signups, broadcasts. | |
| Use Which Tool Read-only search and compare of 49 AI dev tools, with pricing sourced from official pages and dated. | |
| WolfSMS Let AI agents securely read the text messages on your phone. | |
| US Grow Zones USDA hardiness zone, frost dates and vegetable planting calendar for any U.S. ZIP code. | |
| US Mortgage Calculator US mortgage calculator and amortization API with 50-state property tax, PMI, and affordability data. | |
| Florida Home Search by U.S. Prime Realty Search Florida properties and new construction for sale with U.S. Prime Realty. | |
| USTariffRates US HTS search, origin-specific duty breakdowns, tariff sources and missing-fact guidance. | |
| USVI Public Records Search and read U.S. Virgin Islands public records: laws, court records, audits, hearings, reports. | |
| USVI Public Records: Newspapers Search Virgin Islands newspapers page by page, 1865 to 2001, with the gaps in every run named. | |
| Utensil Desk SEC filings, financial facts, insider trades and 13F holdings, each value naming its filing. | |
| AI Recommendation Check Does ChatGPT recommend a local business? Live AI-engine check plus who gets named instead. | |
| Ship Check Scan a deployed app URL for exposed keys, open Supabase tables and missing security headers. | |
| Vaanzari Commerce Discover Banarasi sarees and manage authorized Vaanzari shopping workflows with hosted checkout. | |
| discoverGPT REST API + MCP gateway for AI commerce: search, catalog enrichment, feeds/GEO, and virtual try-on. | |
| Validate-s AI agents deliberate on startup ideas: who is building it, the case for and against, with sources. | |
| com.valksor/hub One MCP endpoint over every Valksor dictionary: namespaced tools plus a JSON passthrough. | |
| com.valksor/latgalian Grounds LLMs in real Latgalian: Wiktionary lemmas, inflections, romanization. | |
| com.valksor/latin Grounds LLMs in real Latin: Wiktionary lemmas, Morpheus inflections, citations. | |
| com.valksor/livonian Grounds LLMs in the real Livonian dictionary: attested words, inflections, romanization. | |
| com.valksor/norse Grounds LLMs in real Old Norse: lemmas, mediopassive paradigms, English→Old Norse lookup. | |
| com.valksor/scythian Grounds LLMs in real Scythian: Proto-Scythian lemmas, etymologies, Ossetian/Khotanese descendants. | |
| com.valksor/slavonic Grounds LLMs in real Church Slavonic: Wiktionary lemmas, dual-number paradigms, transliteration. | |
| com.valossa/video-assistant-mcp Video analysis AI: transcripts, summaries, visual scenes/shots, clips, answers in natural language. | |
| Valumech Sourced new prices, specs and modeled used values for humanoids, robot dogs and home robots. | |
| com.valverideflow/flow Live US diesel prices and optimized stop-by-stop fuel plans for trucking. Free snapshot tool. | |
| com.vamosalicante/mcp-server Datos verificados de Alicante: transporte, parkings, playas, tiempo, comida y ocio. | |
| VanityNumbers.com Find phone numbers that spell a word, toll free or local, with status, price and history. | |
| Vanthal Sales, cash, stock, customer accounts, appointments and team tasks of a business in Vanthal. | |
| Vara Read and update your Vara lab experiments, runs, daily plans, references and materials. | |
| varioroam eSIM configurator Build-your-own travel eSIM: live quotes by country, GB, days and networks, plus a buy link. | |
| variotrip route eSIM configurator One travel eSIM for up to 8 countries: live quotes by route, GB, days and networks, plus a buy link. | |
| VarynForge SEO research SaaS exposed as 30+ MCP tools. Forge niche analysis, plans, and writer-ready briefs. | |
| VATFind Find VAT numbers and EINs, resolve company identities, and monitor company-record changes. | |
| VC Boom Fundraising for startups: deck scoring, investor matching and search, outreach drafts, CRM. |
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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.