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 |
|---|---|
| MarginGlow AI Signal Evidence-backed opportunity intelligence for small businesses, built for authorised AI agents. | |
| Margin of Insight — Equity Research Equity research API for US-listed companies. Free primer, $1 fundamentals, $2 investment memo. | |
| MariaDB Documentation Search and read the official MariaDB documentation for every MariaDB product, plus release notes. | |
| com.marineinsurancecost/site Marine Insurance Cost: the site's own MCP server — enquiry (enquiry = a human handoff, not a... | |
| Markerloop Build and publish pages, manage collections, records and files in a Markerloop workspace. | |
| com.market-graphs/mcp Praxis: published trading strategies re-run and audited — verdicts, claimed vs measured stats. | |
| MarketAIVerse A benchmarked market for AI agents: what runs on your GPU, trust checks, encrypted agent rooms. | |
| Marketcaper MCP Cited market comparisons and heatmap images for AI agents. | |
| MarketCheck API Docs MarketCheck API docs for coding assistants: search, endpoint reference, plans. Free, no auth. | |
| Market Intelligence API Market data for AI agents via x402: token safety, DeFi yields, order flow, SEC filings, macro, perps | |
| Market Intelligence API (core) Compact 18-tool x402 market data server: token safety, Fed odds, DeFi yields, swap quotes, decisions | |
| MarketNewsAPI Real-time US stock news, press releases, and legal notices. Pro or trial key required. | |
| MarklyKit Search your MarklyKit web highlights and notes from AI assistants, with source links. | |
| MarkupBase Versioned artifact review for people and AI agents, with contextual comments and human control. | |
| com.markupbird/site Markupbird: the site's own MCP server — dataset; every answer cites the site. | |
| Markus Tenghamn Blog posts, work experience, projects and contact details for Markus Tenghamn, as MCP tools. | |
| MarleyFetch Let AI agents send email from your own Gmail, Microsoft 365 or SMTP inbox, with guardrails. | |
| MarqPDF PDF tools for agents: compress to a size, Arabic + English OCR, Office conversion, JSON extraction. | |
| Marrow Health: Apple Health for your AI Your Apple Health data, food diary and lifts, for ChatGPT, Claude and Gemini. Approved on iPhone. | |
| com.mart402/docs Documents and web for AI agents: PDF parse, OCR, web extract, invoice checks. x402, no API key. | |
| com.mart402/extract Web extraction, OCR (Japanese-strong), invoice and company data for AI agents. x402, no API key. | |
| com.mart402/free Free read-only tools: Market402 x402 index search, operator track records, PDF price quotes. | |
| com.mart402/jp-statutory Japan statutory calculations: net pay, social insurance, tax walls, holidays. Cited sources, x402. | |
| com.mart402/vision Calibrated vision for AI agents: meal nutrition, personal color, styling reports. x402, no API key. | |
| martechdevs martech skills Practitioner skills for tracking plans, GA4 and GTM fixes, consent, attribution and CRM work. | |
| Mascowiz Animated app mascots from one sentence: transparent WebP, Lottie and sprite sheets. | |
| com.mashzo/site Mashzo: the site's own MCP server — dataset; every answer cites the site. | |
| Mass Home Comfort Find local home-improvement contractors in any Massachusetts town and request estimate visits. | |
| Master Setter Pokémon TCG Catalog Pokémon TCG cards in 14 languages: 196k cards, 272k printings, deepest Korean/Thai/Chinese. | |
| com.masterdiego/master-diego What your rivals' users ask for, counted by distinct account, link on every line. | |
| Mastering Financial Markets Read-only fundamentals of developed-market listed companies from official filings, with dates. | |
| MatchOffice Search commercial real estate locations and create inquiries on MatchOffice. | |
| MaterialHandling.com Industrial equipment catalog: 15,000+ products, specs, live LTL freight rates, real quote requests. | |
| Mathfold Turn Markdown and AI answers into Word (.docx) with native equations, or into PDF. | |
| com.mathieuberthet/mb-mastering Studio de mastering MB Mastering (Paris) : services, tarifs, infos studio, FAQ et demande de devis. | |
| Mati Logistics — supplier sourcing Find suppliers ranked for fit across customs records, catalogues and directories | |
| matterfact Investment research superagent: podcasts, SEC filings, and no-code research pipelines. | |
| MVR 19 Patras residences Seven residences in Patras, Greece, by TPL S.A.: live status, prices and every page in 7 languages. | |
| MaximoFN Content Read-only search over the AI/ML posts, tips and projects of maximofn.com (es/en/pt). | |
| MayaMemo Evidence-backed project memory and checkpoints for AI coding agents. | |
| Ration Kitchen Agent Server Control Ration inventory, meals, meal plans, shopping lists, and credits from an MCP client. | |
| MBD Travel Read-only MBD Travel catalogue: tours, hotel prices, private transfers and the Dubai visa. | |
| MCJars Free Minecraft server builds, versions, downloads and configurations for AI assistants. | |
| Elementor MCP Créateur (third-party plugin) Mockup to native, editable Elementor page from claude.ai or ChatGPT: design tokens, SEO, Schema.org. | |
| Japan Public Ledgers MCP Tamper-evident daily ledgers of 12 Japanese public-data domains, with cross-ledger entity search. | |
| com.mcpcalc/calculator Calculators accessible via MCP with real-time collaborative sessions and shareable URLs. | |
| MCP Canary Inspect any remote MCP server: transport, protocol, tools, and side-effect hints. No tool calls. | |
| The MCP Census Vet any MCP server before you depend on it. Stamp: PASS, REVIEW, or BLOCK. | |
| MCP Checkup Observed facts on public MCP servers: protocol checks, tool changes, signed evidence. No verdicts. | |
| MCP do Afiliado Busca produto e gera link de afiliado da Shopee, Amazon, Mercado Livre, AliExpress e Magalu. |
32,901–32,950 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.