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 |
|---|---|
| LunarWerx Canonicalize Tailwind classes to their short form, and search LunarWerx free dev tools. | |
| Lunonis Astrology Birth charts, synastry and birth-place search from an ephemeris. Free, read-only, nothing stored. | |
| Lupamundo Spanish buying guides for Mexico and LatAm: prices in pesos, exams, eSIM, VPN, courses, wellness | |
| LupyAi Ask about your Meta Ads, Google Ads, GA4, Search Console, Shopify and other marketing data. | |
| Luria AI split testing for any website: Luria writes page versions, runs tests and keeps winners. | |
| Luxor Plastic Cards Quote and order premium 30mil clear, frosted and white plastic business cards, made in the USA. | |
| EscapeStays by Luxury Lodging Book vacation rentals direct: search homes, check live availability, get a real total. | |
| lvl2player sandbox Post a failing test; a coding agent solves it. Test money is held first, released when you accept. | |
| LVL Up Auto — Dealership Vendor Catalog Independent auto dealership vendor catalog: scores, comparisons, benchmarks, AI-capability filters. | |
| AGORA Q&A forum where AI agents ask each other for help: search, read, post, reply, inbox. | |
| Lynnx Care: Guangzhou & Shenzhen hospital guide Sourced, read-only hospital facts for Guangzhou and Shenzhen, with a free inquiry link. | |
| Lynta Public Documentation Search and read Lynta's public documentation. | |
| Lyre Leads Every business of a kind in a city, from Google Maps, read from its website, with verified emails. | |
| LyricalWriter AI songwriting studio: lyrics, Suno prompts, cover art, lyric and music videos, release planning. | |
| Lyssna Query and summarize research data across tests and surveys | |
| MEO Preflight Read-only machine payment preflight using dated MEO evidence, with explicit unknowns. | |
| com.machineinbox/machine-inbox Task-scoped email inboxes for AI agents: read mail, extract verification codes, and reply. | |
| Machine Schema Cited specs for industrial robots, CNC machines, PLCs, drives, protocols and alarm codes. | |
| MacroView Macroeconomic and market data for AI agents: rates, credit, volatility, calendars and screeners. | |
| MacroDataAPI Macro data for agents: CPI, payrolls, GDP, policy rates, yields, release calendar, vintages. | |
| MacTech CMMC / NIST 800-171 NIST 800-171 controls and 800-171A objectives, crosswalks, exact SPRS scoring, POA&M generation. | |
| MacTech Federal Market SAM.gov contract opportunities and entity lookup (BYOK) plus USASpending federal award data. | |
| MacTech STIG 2,029 DISA STIG rules with official check/fix text, CCI mappings, and .ckl checklist export. | |
| Madda Tasks Project scheduling: Gantt chart, dependencies, baselines, reports and AI agents | |
| AgentGas Quotes, capacity and order status for buying native gas on Base/Arbitrum/Optimism/Polygon via x402. | |
| DevX Agent Hub x402 pay-per-call agent tools: token safety/honeypot check, speech to text, TTS, translate, OCR, web | |
| NameDrop Check, quote and register or renew Basenames (name.base.eth), paying in USDC on Base. No ETH needed. | |
| MadeCheck Free landed cost estimates and import requirements for US businesses buying from China. | |
| com.madeinmexicosuppliers/site Made in Mexico Suppliers: the site's own MCP server — compare, enquiry (enquiry = a human... | |
| com.madvisorfees/site M&A Advisor Fees: the site's own MCP server — calculator, enquiry (enquiry = a human handoff,... | |
| Maeve Social A hosted MCP server for planning, scheduling, media, analytics, and social publishing. | |
| MaFactureOK Vérifie une facture électronique (Factur-X, UBL, CII), un SIREN/SIRET, une TVA ; explique un rejet. | |
| Magenta Private Island Approved facts about Magenta Private Island, Belize: villas, rates, inclusions, policies, booking. | |
| Dr. Maggie Geller, OD Book appointments with Dr. Maggie Geller OD (Vancouver optometrist; myopia, dry eye, contacts). | |
| Mags Tack Website MCP Search and read public Mags Tack pages with source URLs. | |
| Maha OS Cognitive Gateway Edge-compute biological sovereignty node for telemetry and cognitive circuit-breaking. | |
| Maha Context Review Reduce supplied context and check caller-declared, source-specific exact evidence retention. | |
| Mailazy Run email marketing from your AI assistant: contacts, newsletters, automations, behavior emails. | |
| Mailbox MCP Read, send, file and search email in any Gmail, Microsoft 365 or IMAP mailbox, plus its calendar. | |
| MailByGet Temporary receive-only email inboxes for agents. Create, list and read messages without signup. | |
| Mail by Pony Print and mail real letters through USPS. Write, preview the exact printed proof, then pay or send. | |
| Mailcheer Email API + newsletters. 17 MCP tools. OAuth 2.1 PKCE or API key. EU-hosted (Hetzner + SES). | |
| MailDignity Audits outbound emails for clarity, respect, and higher reply rates | |
| Maileroo Send email, search delivery logs, and manage domains and your Maileroo account. | |
| MailFixture Test-inbox API for email and SMS: create inboxes, long-poll messages, extract OTPs and links. | |
| mailfloss Email verification for AI agents: verify addresses and lists, check credits, manage integrations. | |
| Mail for Bots Email inboxes for AI agents: send, reply, read verification codes, human-approved drafts. | |
| Mailfornet Disposable email inboxes for AI agents: create an address, wait for the OTP or verify link. | |
| MailInApp Build and send interactive email campaigns: studio editing, contacts, sending, results. | |
| Mailing Engineer E-Commerce Email Marketing, AI Newsletter Studio, DNS Audit & AWS SES Deliverability MCP. |
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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.