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 |
|---|---|
| Sell My Company Data Estimate what your company's operational data is worth to AI labs. Counts only, never content. | |
| Sematryx Optimizer AI-powered optimization API by Sematryx | |
| Semscraper Real Google and Google Maps SERPs for AI assistants: pixel positions, AI Overviews and sources. | |
| Sendburg Search 250M+ B2B contacts and 25M+ companies; reveal verified work emails and phone numbers. | |
| Send16 Email, SMS and marketing automation: campaigns, contacts, automations and stats from Claude. | |
| SendaMeal Storefront Search gift meals and send them as gifts. Live catalog, cart, and guest checkout for SendaMeal. | |
| com.sendaparcelcompare/site Send A Parcel Compare: the site's own MCP server — dataset, enquiry (enquiry = a human handoff,... | |
| SendFaxFast Send real faxes from AI chat. PDF, JPG or PNG. Pay per fax via Stripe link. US, CA, AU, NZ + 39 | |
| SendFaxFast (AI Fax Credits) Send faxes from AI chat with prepaid credits (1 credit = 1 fax, up to 100 pages). PDF, JPG, PNG. | |
| Faxwell Send a fax to any US or Canada number. 10¢ a page, no subscription, no account needed first. | |
| Sendfeather Send transactional email and check delivery: bounces, suppressions, per-provider stats. | |
| SendMyCall public data Virtual phone number coverage, monthly prices, calling and forwarding rates, help articles. | |
| Sendocado Activation and onboarding emails for software products, sent through your own email provider. | |
| SendPay free business calculators Free VAT, card fee, loan, mortgage, margin, ROI and break-even calculators plus IBAN/SWIFT checks | |
| SendQuoteNow — AI Quote Engine for Contractors Generate branded contractor quotes: hosted approval page, PDF, QR code, and Stripe payment link. | |
| Salvo Job applications done for you: check applications and interviews, get prep, apply to a job by URL. | |
| SendThisFax Send real faxes to EU institutions: pay per fax via checkout link or prepaid API key. | |
| FlareMail Read, search, draft, and send email from a FlareMail inbox. | |
| Send Your Agent Website Readiness Scan website AI readiness, understand the result and route customers to the right SYA package. | |
| PawLine Pet Guides Search 180+ free PawLine pet care guides and run pet care calculators. | |
| SenPrints Seller Connector Read your SenPrints sales, orders, customers, campaigns and payouts, and publish blog posts. | |
| SentientMail AI-first email platform: templates, audiences, journeys. Sends real email when the key allows it. | |
| Sentinel Briefing Strategic monitoring and public affairs intelligence: watches, sourced notes, analysed articles. | |
| Sentrint Code security scanner for founders and small teams: leaked secrets, missing RLS, injection, CVEs | |
| com.seoapi/amazon Validate Amazonbot and Amzn-SearchBot IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/applebot Validate whether an IP address belongs to Applebot. Remote MCP server exposing a validate_ip tool. | |
| com.seoapi/baiduspider Validate Baiduspider IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/bingbot Validate whether an IP address belongs to Bingbot. Remote MCP server exposing a validate_ip tool. | |
| com.seoapi/ccbot Validate CommonCrawl CCBot IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/claude Validate ClaudeBot and Claude-SearchBot IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/coccocbot Validate Cốc Cốc Bot IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/duckduckbot Validate DuckDuckBot IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/googlebot Validate whether an IP address belongs to Googlebot. Remote MCP server exposing a validate_ip tool. | |
| com.seoapi/meta Validate Meta-ExternalAgent and Meta-WebIndexer IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/naverbot Validate Naver Yeti IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/openai Validate GPTBot and OAI-SearchBot IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/perplexitybot Validate PerplexityBot IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/petalbot Validate whether an IP address belongs to PetalBot. Remote MCP server exposing a validate_ip tool. | |
| com.seoapi/seznambot Validate whether an IP address belongs to SeznamBot. Remote MCP server exposing a validate_ip tool. | |
| com.seoapi/sogouwebspider Validate Sogou Spider IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/yahooslurp Validate Yahoo! Slurp IP addresses. Remote MCP validate_ip tool. | |
| com.seoapi/yandexbot Validate whether an IP address belongs to YandexBot. Remote MCP server exposing a validate_ip tool. | |
| Seoclerks Find and order SEO services, follow your orders and answer messages on the Seoclerks marketplace. | |
| SeoGrep SEO for AI agents: crawl sites, audit pages, pull Search Console data, generate shareable reports. | |
| Seomely Which pages Google actually indexed, which dropped out and when, and why the rest did not. | |
| SeoPerseo SEO, GEO & AI Visibility intelligence directly inside AI assistants. | |
| GEO SEO Records Gets a website ready for AI assistants: robots.txt fixed, llms.txt drafted, citable gaps listed. | |
| SEO Records SEO check of any website and AI crawler access test (access pass), and the full Audit. | |
| SEO Records Corrector Fixes the SEO of any public page: each correction with its value, source and exact HTML tag. | |
| Seoulstart Jobs for foreigners in Korea and median rent, jeonse and home prices from MOLIT data. |
34,651–34,700 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.