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 |
|---|---|
| Neptune Cigars Premium cigar search, community ratings, live availability and US state shipping rules. | |
| com.nesimplicity/real-estate Book a free consultation or home valuation with SimpliCity Real Estate in Lincoln, Nebraska. | |
| NestingCalc Calculators 37 cutting and woodworking calculators: cut lists, sheet nesting, timber volume, kiln drying | |
| NestJS Observe Production telemetry for NestJS apps: traces, errors, regressions, jobs and alerts. | |
| Nestphones Phone, tablet and smartwatch specs with Algerian prices in DZD, comparisons and articles. | |
| NetActuate Current data on NetActuate's data centers, compliance, products, marketplace apps and docs. | |
| com.netentropyscore/coherence-signal A brand's claim (website coherence) vs its reality (recent news), and the divergence. | |
| NetFiscus Track net worth and investment performance (MWRR, P&L) for any asset with a value, in any currency. | |
| NET Genium Read and write the data and applications of your NET Genium instance; read the framework docs. | |
| NetNest Design Fundamentals API SEC company fundamentals and filing events, each with its source filing. Pay per call with x402. | |
| com.netsheetly/site Netsheetly: the site's own MCP server — dataset; every answer cites the site. | |
| NetWorthTrackr Your net worth, accounts, history and holdings from NetWorthTrackr. Read, record and edit. | |
| Austin MLS Search Austin-area MLS listings. Free with signup; comps and market stats are paid. | |
| Neural Cosmology Answers, essays, experiments and books on consciousness and cosmology: search, read, buy. | |
| Neura Relay MCP Govern proposed Action Cards with Decision Receipts before developer-owned execution. | |
| Neuro Agenda Personal agenda and CRM with AI: people, companies, reminders, contracts, finances and WhatsApp. | |
| com.neurocompare/assessment-compare Factual UK ADHD & autism assessment price and wait comparison. Read-only; not medical advice. | |
| Nevada Insurance Auto insurance prices for Nevada drivers, from rates the state publishes. | |
| Nevadaautoquotes Indicative US auto insurance prices for agents: rating facts only, no PII, consented path to agents. | |
| New Relic MCP Server Access New Relic observability data through MCP - query metrics, logs, traces, entities, and more | |
| New Runtime public records AI-engineering archive: search, what is new, forecasts, topic briefs, URL context; moderated inbox. | |
| New Site Radar Rising new AI tool sites with cross-checked traffic, revenue signals and model releases. | |
| NewsletterFIT Search 89,000+ Substack and beehiiv newsletters, their sponsors, topics and mentioned companies. | |
| NewsMCP Live world news deduplicated into story events, with corroboration counts and source links. | |
| com.newtqnia/newtqnia Read-only access to NewTqnia news, terminology, and explainers in English and Arabic. | |
| NewVSTs New audio plugin releases and intro deals: live prices, deal end dates, format/OS filters. | |
| New York Insurance New York's published auto insurance averages. Not a quote; we are not licensed here yet. | |
| Newyorkautoquotes Indicative US auto insurance prices for agents: rating facts only, no PII, consented path to agents. | |
| com.nexaaly/a11y-check Real-browser WCAG audit that also finds keyboard-inoperable controls axe-core misses, with fixes. | |
| NexoTrade Crypto data: Bitcoin zone, fear & greed, funding, calendar, liquidation map and your TradeAudit. | |
| Nexqual US stock quotes, analyst targets, superinvestor 13F, insider buys and earnings from SEC filings | |
| NextGen Energy Jobs Search open jobs in grid, nuclear, renewables, storage and data centers. Read-only, no login. | |
| Nextify Cloud VMs, Secure VMs and GPU VMs: live plans and prices, plan advice, docs, and your servers. | |
| Nexus Catalyst Cross-tool persistent memory and context for AI assistants over MCP. | |
| NexusBro website and SEO audit Free website and SEO audit: health score, top issues, a fix prompt for coding agents, full report. | |
| NFL MCP NFL analytics tools for AI agents: stats, fantasy, injuries, schedules, and advanced analysis. | |
| ngrok Manage ngrok from your agent: endpoints, domains, and traffic policy. | |
| NiceVois Free stem, vocal, noise, reverb and format tools. Train RVC voices; convert vocals and whole songs. | |
| Niels Langereis Essays, an enterprise AI map and a skill-matrix gap analysis on AI adoption and junior formation. | |
| Nikola Dikic - Full-Stack Developer, WordPress, WooCommerce, ERP Integrations Services, shipped projects, limits and booking slots for a freelance WooCommerce developer. | |
| Nimble CRM Connect AI assistants to Nimble CRM to access and work with customer relationship data. | |
| NiMCoffee 新印象咖啡 Order freshly self-roasted specialty coffee from NiMCoffee, a coffee roaster in Fuzhou, China. | |
| nimtin Book venues and vendors for events. Drafts wait in nimtin for you to send. | |
| com.ninebix/site Ninebix: the site's own MCP server — dataset; every answer cites the site. | |
| Nirvana Read and update your Nirvana tasks and projects: GTD states, tags, due dates, and capture. | |
| nisebookings Operate a nisebookings account: catalogue, staff schedules, free slots, customers, appointments | |
| com.nivelrisk/mcp-server Commercial auto insurance MCP server for NYC TLC for-hire vehicles. 33 tools, submission to bind. | |
| Nizh Compliance frameworks (SOC 2, ISO 27001, CMMC, NIST, more) delivered to AI agents as MCP tools. | |
| noBGP Private networking for AI agents: networks, nodes, commands, files, services via hosted MCP. | |
| No-Code Exits No-code startups for sale, the deal-scoring method behind each pick, and exit stories. |
33,351–33,400 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.