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 |
|---|---|
| Under Articles Spaces where AI agents message, hand off and claim work, ratify decisions and seal records. | |
| Underlayer Build, publish and track embedded training courses in your product: courses, learners, SCORM. | |
| Underpriced AI Ask what a thrift find sells for. Real eBay sold comps, price range and net after fees. | |
| Underridge Underridge, an SI underwriting desk: a verdict and IC package from a deal's documents or ticker. | |
| unflagdomain: website blacklist removal Website flagged by security vendors? Free scan, then we send the removal requests for you (paid). | |
| UnfoldIP Patent Search Search 14.3M US patents (2005+) and read full claims and descriptions, with cited source links. | |
| UniAffitti Room Finder Find, rank, and compare student rooms from UniAffitti public listings. | |
| Unified Chambers Legal Indian debt recovery law reference: DRT benches, tribunal fees, SARFAESI periods, bare acts. | |
| Unite Research Read published Brazil Black Friday creative benchmarks, chart data and citations. | |
| UNITECARGO U.S. Logistics Provider Directory Verified U.S. logistics provider search with canonical profiles, freshness, and read-only tools. | |
| United Starlink Tracker Does my United flight have Starlink WiFi? Verified tail assignments, odds, and itineraries. | |
| Unitpost Email and SMS infrastructure, run by your agent: send, campaigns, contacts, domains, webhooks. | |
| Universally Manage Universally website translations: sites, languages, strings, glossary rules and analytics. | |
| Unlayer: Email, Page & Document Templates for Developers Generate email, page & PDF document templates as React code (Unlayer Elements) or AI; edit visually. | |
| Unlisted Property Search Search and explore residential properties that aren't for sale (yet) | |
| Unprofane Should I allow this text? Profanity and toxicity checks that are hard to fool, with the evidence. | |
| Unstuck Web search, read any page, verify or find emails, screenshots, keyword data. One key, pay per call. | |
| Unthinkable Search 3,000+ researched business opportunities from real demand signals. Premium plan required. | |
| upcoach Build coaching and training programs and pull live progress reports in upcoach. | |
| uplads Ads MCP for Meta, Google Ads, TikTok, Snapchat and LinkedIn: stage launches and manage campaigns. | |
| uplika Your AI agent publishes to Threads, Instagram, YouTube and the other social channels you connect. | |
| Uprampr Marketplace Buy and sell with Bitcoin, Monero or Pirate Chain. Listings, Want Ads, offers, escrow. | |
| Upravio public knowledge Public Upravio contract-management guides and capabilities. No private workspace access. | |
| UpSnatch Expired Domain Search Search 55M+ expired domains, auctions, marketplaces & drops with SEO metrics, spam score and filters | |
| UpTrust Who to trust among people: your trust graph, perspectives, bridges and introductions for your agent | |
| url2image Capture batches of public web pages in a real browser and download the screenshots as a zip. | |
| Urlsome – links for agents Short links for AI agents: editable after sharing, with click counts and password-protected files. | |
| US BIKE TRAVEL MCP-Server: US BIKE TRAVEL Motorradreisen – Suche, Details, Termine, Preise, Vergleich, Anfrage | |
| Dúos Two AI perspectives and a cross-review. OAuth required; new consultations use your Dúos quota. | |
| USAnaru™ — U.S. boarding schools U.S. boarding schools for international students: NCES data, SEVP F-1 status, visa docs, news. | |
| UsdtPull — TRON energy rental Rent TRON energy so USDT TRC-20 transfers don't burn TRX. Balance, orders, AML checks. OAuth. | |
| AgentBank Crypto banking services for AI agents: collect money and pay bank accounts in local currency. | |
| AnyFile Connect AnyFile to AI clients to manage files, share links, file requests, and analytics. | |
| Auditor IA Audit B2B prospect lists before enrichment, CRM import or outreach. | |
| Brayer Design mockups, device frames and launch graphics live in your open Brayer studio tab. | |
| Chartory Chart types, props, JSON Schemas and install commands for the Chartory React chart library. | |
| ClientProof Read-only tools for agency testimonial walls: list clients, testimonials, and embed widgets. | |
| Croma Colombian, Peruvian, and Mexican public data: judicial cases, registries, legislation, web search. | |
| Damper Feedback, roadmap, agent task execution with review, changelog, status pages and error logs. | |
| Ears: Audio & Video Transcription Transcribe audio and video from a link or local file into text and SRT subtitles. Pay-as-you-go. | |
| Embers Today's queue, lead details, openers, ICP and sources for the leads Embers finds on LinkedIn. | |
| GEON Monitor Track your brand's visibility in ChatGPT, Perplexity, Claude, Gemini, Grok and DeepSeek answers. | |
| Growo child growth Free child growth tools: percentiles, BMI, corrected age, target height, birth size. WHO and CDC. | |
| Holon One MCP server for every measured agent: search, compare, call agents paid per success, on a budget | |
| Invent Your customer inbox, contacts, AI assistants, broadcasts and tables, from any AI app. | |
| Lauda - IA jurídica Brazilian law tools: CPC deadlines, labor and debt calculators, CEP, CNPJ and OAB case lookup. | |
| Lexica Language flashcards in your AI assistant: build decks, edit cards and review what's due in the chat. | |
| Mamitsu MCP OAuth-enabled MCP server that extracts structured data from public social media posts. | |
| Muro Paint Colors Real paint colours from 35 brands, free; paint a room photo with a Muro account. | |
| Nysa Shared memory for teams that work with AI agents: meetings, email and calendar in one brain. |
35,851–35,900 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.