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 |
|---|---|
| com.sredclaimcalculator/site SR&ED Claim Calculator: the site's own MCP server — calculator, enquiry (enquiry = a human... | |
| com.sredfinder/site SR&ED Finder: the site's own MCP server — compare, enquiry (enquiry = a human handoff, not a... | |
| SSANVPS - VPS & domain price comparison Cheapest and best-value VPS plans by spec, plus domain prices, read daily from official pricing. | |
| SSCMFI Bond Calculations Industry-standard bond math for AI agents: price, yield, accrued interest, duration, yield-to-worst | |
| SSSNACK - Agent Takeover Arena Owner-authorized puzzle: synthetic HTTP clues win sandboxed homepage art. No server access. | |
| Stablecoin Gateways Pay-per-call compliance data: OFAC sanctions, merchant check, LEI, SEC, WHOIS, FX. x402 in USDC/XRP | |
| Stackduke Radar Read-only answers about tool changes in the public MCP servers on Stackduke's tracker. No sign-in. | |
| StackerScan Five read-only tools: spot prices, observed premiums, price history, Goldback rate, and currencies. | |
| Stack Gems Read-only search of 900+ reviewed developer tools, each with a verdict and caveats. Free/OSS first. | |
| Stackless Explore your trusted data and build pipelines, metrics and dashboards in Stackless. | |
| StackOne Give AI agents 30,000+ safe, token-optimized actions across Workday, SAP, Oracle + hundreds more. | |
| StackWitness Independent monitoring: status, monitors, and incidents from your StackWitness workspace. | |
| com.stagenix/site Stagenix: the site's own MCP server — dataset; every answer cites the site. | |
| stagenth · 托管浏览器 Hosted Chromium in mainland China: scripted actions, URL screenshots, print-to-PDF. | |
| stagenth · 数据工具箱 Query, join, profile, clean and convert CSV/JSON/Parquet with server-side DuckDB over MCP. | |
| stagenth · 文档生成 Generate PDF, Word (.docx) and PowerPoint (.pptx) documents from Markdown over MCP. | |
| stagenth · 文档解析 Parse PDF/Word/PPT/HTML to Markdown; tables as JSON, image extraction, RAG chunking, page ranges. | |
| stagenth · Excel 数据可视化 Excel analytics: inspect, query (JSON rows), charts, and JSON-to-xlsx workbook writing. | |
| stagenth · file-relay Cloud file relay: chunked uploads, folders, share links, inline text reads, ZIP packing. | |
| stagenth · 图片工具箱 Image toolkit: resize, compress, crop, watermark, convert, rotate, EXIF read/strip. | |
| stagenth · AI 记忆库 Hosted persistent memory with semantic search, importance and TTL for AI agents. | |
| stagenth · PDF 工具箱 14 PDF tools: merge, split, compress, watermark, encrypt, organize, metadata, page extraction. | |
| stagenth · 二维码工具箱 QR & barcode toolkit: generate, decode, vector SVG, logo QR, WiFi and vCard QR codes. | |
| stagenth · 网页数据 Web scraping to clean Markdown with JS rendering, multi-page crawl, structured extract, sitemaps. | |
| StalkChain Data Crypto research: what FOMO's top traders buy, real wallets and PnL, token safety, smart money. | |
| Stalsoft – Dr. Alex Stolz, IT- und KI-Beratung Öffentliche Inhalte von stalsoft.com: Profil, Leistungen, FAQ, Publikationen, Kontakt, Suche. | |
| Standard Blanks Search blank apparel, check availability, price orders and build a cart on standardblanks.com. | |
| StarAgenta Represent your human in StarAgenta: topic discussions, Spotlight themes, follow your interests. | |
| Starbelo Search real AI money-making use cases, AI tools and prompts from Starbelo. Free, read-only. | |
| Starcovery MCP tools to find and hire Instagram and TikTok creators from a plain-language brief. | |
| Aim Market knowledge layer for AI agents: competitors, opinions and regulations shaping your market. | |
| StartupMKT — Startup Discovery & Marketplace Discover startups & AI tools, browse micro-SaaS for sale, and track verified startup funding. | |
| StashGamma EOD Stock Data Daily end-of-day OHLCV stock data for U.S.-listed symbols, 15 years of history. Free API key. | |
| Statement to Budget Turn bank statement PDFs, CSVs, XLSX and OFX into categorised transactions plus a summary. | |
| Statistics of the World 330+ indicators for 217 countries from the IMF, World Bank, WHO and national statistics offices. | |
| StatOSS Status pages and uptime monitoring: read status, monitors and incidents; open incidents. | |
| com.statsig/statsig-mcp-server MCP server for Statsig API - interact with Statsig's feature flags, experiments, and analytics | |
| Status Is Down Read-only outage intelligence: live service status, report history, geography and spikes | |
| StayCharted AMT Use your own trained text and picture classification models from any AI assistant. | |
| Stay Otter Vetted stays, ground intelligence and price monitoring, with live totals and the block checked. | |
| com.stayportland/mcp Search Portland rentals, compare homes, save a shortlist, and get a live quote. No payments. | |
| Stay Perks Virtuoso luxury hotels with perks included: search 2,000+, get a quote, book. Pay hotels directly. | |
| Steadyline Data web tools Jobs, funding, contacts, tech stacks, WHOIS/DNS, sitemaps, screenshots, PDFs, app reviews: 11 tools | |
| SteamAnalyst CS2 skin prices: cross-market fair price and a direct SteamAnalyst link for every skin. | |
| SteamCozy Steam game data with dates: review score and consensus, price lows, tags, new releases; cite it. | |
| SteamMaho Steam games counted by their mechanics: earnings, launch ranges, price bands, crowds, closest games. | |
| Stellarhound — stargazing forecasts, dark-sky sites & aurora Live stargazing forecasts: per-night sky scores, dark-sky sites, aurora & light pollution anywhere. | |
| Stelllink Connect AI to Stelllink to organize, access, manage and share files, links, and digital workspaces. | |
| Stepladder Put timed plans on the person's phone: steps, questions and waits that ring when a rest is over. | |
| Stepshots Manage hosted Stepshots product demos: analytics, publishing, guided tours, and claim links. |
35,001–35,050 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.