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 |
|---|---|
| Nuelink Draft, schedule and publish social media posts to 12 networks from your AI assistant. | |
| Nueve de Diciembre — River Plate Noticias, historia, palmarés y estadísticas de River Plate. Sitio de hinchas, no oficial. | |
| Numezis Swiss SME back office: accounting, VAT, QR-bill invoicing, supplier bills, CRM, HR and payroll. | |
| Nunify Enables AI assistants to retrieve event data and execute event management operations in Nunify. | |
| Nuntior — Social, Messaging, Blog & Telecom MCP Social media, DMs, blog syndication & E.164 telecom for AI agents across 18+ networks. | |
| Nusii MCP Server Nusii MCP server for drafting, pricing, and tracking business proposals. | |
| NutsGrowth Startup and SaaS tools and their alternatives, with prices and when a person last checked them. | |
| Nuxt SEO Free SEO checks for any URL, plus the Nuxt SEO module docs. | |
| Quasar product guide Read-only guide to Quasar, the AI-agent-first project management tool. No sign-in needed. | |
| NVIDIA CUDA Docs Search NVIDIA CUDA documentation and code samples from AI coding agents. | |
| Nymwell Lookup Check domain availability and prices, and look up any domain's public records. Read-only. | |
| Nymwell Look up and buy domain names: live prices, any domain's public records, renewals, transfers and DNS. | |
| NythosX Market Data Crypto/stock trade setups, signal bias, levels, regime, odds. Free track record. Pay per call, x402. | |
| NythosX Agent Tools Gas fees and USD tx costs on 6 chains, cheapest-chain ranking, URL to Markdown. Pay per call, x402. | |
| Oakferry Agents Search and compare Oakferry's apps with dated, sourced facts: platforms, prices, ratings, limits. | |
| com.obeliskgate/trust-tools Website security ratings, token verification, and tamper-evident ledger heads from Obelisk Gate. | |
| Obento Live USDC rates on Base, any address's Obento position, and deposits and withdrawals to sign. | |
| Obriym CRM Operate Obriym CRM from your AI assistant: leads, deals, orders, catalog, stock, marketplaces. | |
| com.obsmetrics.paygent/agents Pay-per-call safety guards for AI agents: injection, tool-call, signing, secret, x402-trust. | |
| com.oceanbuilders/inventory Search Ocean Builders' floating-home inventory, get unit specs and pricing, register buyer interest. | |
| OCKLU Hyper Market Agentic broker for any industry + agent shop: list, find, get introduced. 7% fee only on deals. | |
| com.octolens/octolens Social listening for AI: query brand mentions across 15+ platforms, run analytics, manage keywords. | |
| Octo Thinks Decision Presets Reviewed decision matrices and buying guides: ranked options and weighted criteria in 6 languages | |
| Octura Solutions Site Tools Deterministic Odoo ERP calculators: implementation cost, ROI, TCO, tax, payroll, inventory. | |
| Oddi Forge Read-only facts about Oddi Forge ($ODDI) on Solana: launch status, official contract, FAQ. | |
| OddiWire — Esports Odds with No-Vig Probabilities Live and prematch esports odds (ODDIN.GG feed) with no-vig fair prices. Free demo access, no key. | |
| Oddsradarwire — Live & Prematch Betradar Odds with No-Vig Probabilities Live and prematch Betradar odds with no-vig fair prices. Free demo access, no key. | |
| Odile Gate Free, no signup: per-app keys, allowed calls, approvals and an audit log for your API or model key. | |
| OFACScreen Sanctions Screening Screen names and addresses on US, UN, EU, UK and other sanctions and export-control lists. Free. | |
| com.offdayly/site Offdayly: the site's own MCP server — dataset; every answer cites the site. | |
| Motor Row — used cars for sale in Indianapolis Search used cars for sale from Indianapolis dealers: search_cars, get_car, site_info. No auth. | |
| Ogen Eight tools an agent uses; ten more for operating your tenant. Patent pending. | |
| RingMaster, the evening desk Evening research on a thousand US stocks and their options: signals, IV rank, priced moves, gamma. | |
| Oh Fax Outbound US/CA fax for agents: quote PDF, pay via MPP, get delivery receipt. | |
| com.ohioroofreplacementcost/site Ohio Roof Replacement Cost: the site's own MCP server — enquiry (enquiry = a human handoff, not... | |
| Ohmbo Design and revise PCBs from plain language, track jobs, and retrieve design artifacts. | |
| Oh, my Dots! Crossword, audio crossword, word search, cryptogram and cross-math puzzle links for ohmydots.com. | |
| OilPicker Korean local-currency (지역화폐) discounts: fuel rates, effective prices, merchant search, deep links. | |
| OKC Windshield — book windshield replacement in Oklahoma City Book windshield replacement in Oklahoma City, OK: prices, ZIP coverage, free callback. | |
| com.okdocai/okdoc E-signature & document automation: create, send, track and sign documents with payments. 38 tools. | |
| OkeyStay Search holiday rentals by town and dates, with total prices, and get a ready-made booking link. | |
| OkkMax Read-only data on AI API relay stations: rank, purity, uptime, price per model. | |
| Oklahoma Insurance Oklahoma's published auto insurance averages. Not a quote; we are not licensed here yet. | |
| Oklahomaautoquotes Indicative US auto insurance prices for agents: rating facts only, no PII, consented path to agents. | |
| com.oklahomafoundationrepaircost/site Oklahoma Foundation Repair Cost: the site's own MCP server — enquiry (enquiry = a human handoff,... | |
| Okokumo Uptime, cron/heartbeat, TLS and domain expiry monitoring, EU-hosted. Same access as the REST API. | |
| OlaChill Japan Travel Search and price Japan tours, tickets, ryokan, transfers, charter buses, helicopters, golf and eSIM. | |
| Olatti UK business phone for Claude and ChatGPT: calls, transcripts, AI summaries, contacts, messages. | |
| OleaDesk Mail Your own AI reads, searches and drafts in your mailbox, on your Windows computer. | |
| Research Connect Legitimate full-text access to scholarly articles for your AI, by DOI, with provenance. |
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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.