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.
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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.
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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 |
|---|---|
| io.github.mrfentmen/wikispecies-mcp mrfentmen/wikispecies-mcp Species taxonomy from Wikispecies. No key required. | |
| io.github.mrfentmen/wikitrending-mcp mrfentmen/wikitrending-mcp Wikipedia featured content for a day. No key required. | |
| io.github.mrfentmen/wikivoyage-mcp mrfentmen/wikivoyage-mcp Travel guides from Wikivoyage. No key required. | |
| io.github.mrfentmen/wiktionary-mcp mrfentmen/wiktionary-mcp Look up word definitions and etymology from Wiktionary. No key required. | |
| io.github.mrfentmen/wordle-helper-mcp mrfentmen/wordle-helper-mcp Suggest guesses and narrow Wordle candidates locally. No network and no key. | |
| io.github.mrfentmen/wttr-mcp mrfentmen/wttr-mcp Weather text from wttr.in. No key required. | |
| io.github.mrfentmen/xkcd-mcp mrfentmen/xkcd-mcp Use this MCP server to xkcd. The latest comic, any comic by number, alt text, and transcripts.... | |
| io.github.mrfentmen/yaml-mcp mrfentmen/yaml-mcp Parse, stringify, and validate YAML locally. No network and no key. | |
| io.github.mrfentmen/yesno-mcp mrfentmen/yesno-mcp Random yes or no answers from the Yes No API. No key required. | |
| io.github.mrfentmen/yugioh-mcp mrfentmen/yugioh-mcp Use this MCP server to YGOPRODeck, Yu Gi Oh! cards, archetypes, and banlists. Tools include... | |
| io.github.mrfentmen/zenodo-mcp mrfentmen/zenodo-mcp Search research records on Zenodo. No key required. | |
| io.github.mrfentmen/zip-codes-mcp mrfentmen/zip-codes-mcp Look up US postal codes, cities, and states from Zippopotam. No key required. | |
| cubic mrge-io/cubic-mcp Triage cubic AI code review findings, start PR reviews, and read wikis, scans, and team learnings. | |
| io.purchaseiq/mcp mrgoodie/purchaseiq-mcp Pre-purchase trust checks for AI agents: recalls, scam signals, proceed/caution/avoid verdict. | |
| io.github.mrgulshanyadav/misarmail-mcp mrgulshanyadav/misarmail-mcp Send emails, manage campaigns, subscribers, and templates from MisarMail. | |
| chowdown mridang/chowdown Your recipes as plain files in your own Google Drive, searchable by your AI assistant. | |
| io.github.mrjakob07/mytown-mcp mrjakob07/mytown US & Canadian local-government meetings, decisions & place context from official sources. | |
| io.github.mrlarryjohnson111/polymarket-mcp-server mrlarryjohnson111/polymarket-mcp-server Live Polymarket data for agents: markets, insider-scored whale trades, leaderboards, wallet P&L | |
| Exepal mrlaxmankafle/exepal Paid data tools for AI agents, pay per call in USDC via x402: AI visibility, company enrich, SERP | |
| Tí Hon Storefront mrminh231189/mcp-server Catalog, recipes, FAQs and shipping tools for Lap Xuong Ti Hon store. | |
| classifier.dev mrmps/classifier-dev Sort up to 1,000 texts into your own labels with a calibrated confidence per answer. No API key. | |
| smry Public Reader mrmps/homebrew-smry Read and search exact public source URLs with stable paragraph citations. | |
| smry Product mrmps/smry Read public sources and manage a smry library, feeds, notes, highlights, files, and page monitors. | |
| io.github.mrpacstar2-oss/remit mrpacstar2-oss/remit Checked language for AI-written agent workflows: limits, cost and data flows known before running. | |
| KARTA — spend control for AI agents mrpkk/onchain-ai-agent Task envelope, budget ledger, kill switch and signed receipts for agents that pay. | |
| rta — zero-knowledge proof of a threshold mrpkk/rta Prove a hidden value reached a threshold without revealing the value. | |
| skilllint — vet an agent skill before you install it mrpkk/skilllint Vet an agent skill before you install it: structure, triggers, secrets. | |
| com.situationatlas/mcp mrrobey/sit-atlas AI-summarized filings from 7 markets with special-situations screens, for research agents | |
| VoiceDesk AI mrronaldlewisjrre/voicedesk-ai-mcp AI voice receptionist for US service businesses: services, pricing, fit checks, demo requests. | |
| Xonta Docs RU mrsergeiluzhnov/xonta-docs Russian docs for AI agents: invoices/acts PDF, document parsing, INN checks, medical ad checks | |
| SiteHelm mrshahidali420/sitehelm Let an AI agent run your WordPress site: every write previewed, verified and reversible. | |
| EU261 Flight Compensation mrsucik/eu261-mcp EU261 flight delay compensation: check eligibility, compute EV, track fares. 6 tools, 35+ airports. | |
| ai.smithery/mrugankpednekar-bill_splitter_mcp mrugankpednekar/bill_splitter_mcp Track and split shared expenses across trips, events, and groups. Create groups, add expenses, and… | |
| Staats mrviolets/staats-mcp Cookieless web analytics your coding agent reads: traffic answers, deploy impact, what broke. | |
| Seedance 3.0 mryangsd-netizen/seedance30-mcp Seedance 3.0 info MCP (seedance30.com): product, pricing URL, capabilities. No video gen. | |
| DesignScan ms-zaman/designscan Extract a website’s design tokens (colors, type, spacing, shadows) as DESIGN.md, W3C, or CSS. | |
| io.github.msanchezgrice/agentready msanchezgrice/agentready Scan any public site for AI-agent visibility; get scored findings, a machine-readable fix pack, and | |
| Talkform msanchezgrice/audioform Collect reviewed human answers through hosted handoffs, plus local templates and config validation. | |
| com.myprivacyagent/public msanchezgrice/leak-check-me Read-only opt-out guides, removal routes for 950+ data brokers, and privacy library search. | |
| io.github.msantagiulianab/solana-x402-compliance msantagiulianab/solana-enterprise-payment-gateway RFC 9110 x402 Solana compliance screening and micropayments gateway for AI agents. | |
| sendifai mscandco/sendifai 335 MCP tools, 75 playbooks. AI-native CRM, email/SMS, events, OAuth. | |
| io.github.msgwing/zerosmtp msgwing/zerosmtp A free SMTP relay that still takes a username and password, for devices that cannot do OAuth 2.0. | |
| OmniClip RAG msjsc001/omniclip-rag Read-only local-first MCP server for private Markdown, PDF, and Tika-backed search on Windows. | |
| Symbiosis Agora msnr-create/symbiosis-agora Public forum where humans and AI agents debate rules for coexistence and co-write an AI charter. | |
| massprint msomu/massprint Print-on-demand for agents: upload a PDF, get a printed book delivered in India. | |
| mtdt — Salesforce DevOps mtdt-io/mcp mtdt.io MCP: Salesforce DevOps platform connector (metadata deployments, backups and more) | |
| com.day1work/day1work mtechuab/day1work Human-and-agent marketplace: find work, post tasks, bid, chat, request payments. | |
| Business Site Audit mthburnsbarber-web/black-label-plugins Audit a business website for observed crawl and indexing issues with source-linked fixes. | |
| io.github.mtjandra/mcp-weather-server mtjandra/mcp-weather-server An MCP server for weather information. | |
| market.mtok/mcp mtok-market/mcp Spot market for AI inference tokens. Buyers pay per draw in USDC on Base; sellers host delivery. |
45,451–45,500 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.