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.
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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 |
|---|---|
| Mast Nasa pipeworx-io/mcp-mast-nasa MAST MCP — Space Telescopes archive. | |
| Mastodon pipeworx-io/mcp-mastodon Mastodon MCP — public Mastodon data via mastodon.social (no auth required) | |
| Materials pipeworx-io/mcp-materials Materials MCP — computed (DFT) materials structures & thermodynamic properties. | |
| Mathjs pipeworx-io/mcp-mathjs Math.js MCP — wraps the mathjs.org API (free, no auth) | |
| Matomo pipeworx-io/mcp-matomo MCP server for matomo | |
| Maven Central pipeworx-io/mcp-maven-central Maven Central MCP — Java/JVM artifact registry | |
| Mbta pipeworx-io/mcp-mbta MBTA MCP — Boston real-time transit via the MBTA v3 API (api-v3.mbta.com) | |
| Md Dmv pipeworx-io/mcp-md-dmv Maryland DMV MCP — monthly registered-vehicle counts and electric/plug-in hybrid adoption by… | |
| Mdn Search pipeworx-io/mcp-mdn-search MDN Search MCP | |
| Mediastack pipeworx-io/mcp-mediastack Mediastack MCP — wraps Mediastack API (api.mediastack.com/v1) | |
| Medicaid Intelligence pipeworx-io/mcp-medicaid-intelligence Investor-oriented Medicaid drug utilization, managed-care, and enrollment signals. | |
| Medical Codes pipeworx-io/mcp-medical-codes Medical codes MCP. | |
| Medicare Coverage pipeworx-io/mcp-medicare-coverage Medicare national and local coverage policy from the official CMS Coverage API. | |
| Medicare Pricing pipeworx-io/mcp-medicare-pricing What does Medicare PAY — physician fee schedule, lab rates, and per-day unit limits. | |
| Medlineplus pipeworx-io/mcp-medlineplus MedlinePlus MCP — NIH consumer health info | |
| Meetup pipeworx-io/mcp-meetup Meetup MCP — wraps Meetup's public GraphQL API (api.meetup.com, free, no auth) | |
| Mempool Space pipeworx-io/mcp-mempool-space mempool.space MCP — Bitcoin block explorer + mempool/fee stats | |
| Meps pipeworx-io/mcp-meps MEPS — what Americans actually take, and what for. | |
| Mercury Number pipeworx-io/mcp-mercury-number mercury-number MCP — wraps StupidAPIs (keyless — no credential needed) | |
| Merriam Webster pipeworx-io/mcp-merriam-webster Merriam-Webster MCP — wraps the Merriam-Webster Collegiate Dictionary and Collegiate Thesaurus… | |
| Mesh pipeworx-io/mcp-mesh NLM MeSH (Medical Subject Headings) MCP. | |
| Met No pipeworx-io/mcp-met-no MET Norway (api.met.no) MCP — global weather, Nordics specials. | |
| Metabolights pipeworx-io/mcp-metabolights MetaboLights MCP — EBI's metabolomics study repository. | |
| Metals Api pipeworx-io/mcp-metals-api Metals API MCP — wraps Metals-API (metals-api.com) | |
| Meteors pipeworx-io/mcp-meteors Meteors MCP — NASA fireball, near-Earth asteroid, and close approach data | |
| Meteostat pipeworx-io/mcp-meteostat Meteostat MCP — historical weather from 11k+ stations (no auth) | |
| Meteoswiss pipeworx-io/mcp-meteoswiss Swiss weather and federal geodata from MeteoSwiss and swisstopo on data.geo.admin.ch — find… | |
| Metmuseum pipeworx-io/mcp-metmuseum The Metropolitan Museum of Art Collection MCP. | |
| Mfapi India pipeworx-io/mcp-mfapi-india MFAPI.in MCP — Indian mutual-fund NAV (net asset value) data. | |
| Mgnify pipeworx-io/mcp-mgnify MGnify — EMBL-EBI's metagenomics resource: public microbiome studies, the biome vocabulary they… | |
| Mhra Alerts pipeworx-io/mcp-mhra-alerts MHRA drug and device safety alerts, recalls and Drug Safety Update bulletins, sourced from the… | |
| Mhra Uk pipeworx-io/mcp-mhra-uk MHRA (UK Medicines and Healthcare products Regulatory Agency) — the public products register… | |
| Mhw pipeworx-io/mcp-mhw MHW MCP — Monster Hunter World data (mhw-db.com, free, no auth) | |
| Mic pipeworx-io/mcp-mic MIC — ISO 10383 Market Identifier Code decoder (fleet #3261) | |
| Michigan Code pipeworx-io/mcp-michigan-code Michigan Compiled Laws (statutes) and, since fleet #3957, the Michigan Administrative Code (agency… | |
| Microlink pipeworx-io/mcp-microlink Microlink MCP — wraps Microlink API (free tier, no auth required) | |
| Microsoft Onenote pipeworx-io/mcp-microsoft-onenote Microsoft OneNote (Microsoft 365) MCP Pack | |
| Microsoft Todo pipeworx-io/mcp-microsoft-todo Microsoft To Do (Microsoft 365) MCP Pack | |
| Mime pipeworx-io/mcp-mime MIME type lookup MCP. | |
| Minnesota Code pipeworx-io/mcp-minnesota-code Minnesota Statutes — state statutes by citation. | |
| Miso pipeworx-io/mcp-miso Real-time electricity data for MISO, the grid operator for 15 US states from Louisiana to… | |
| Missouri Code pipeworx-io/mcp-missouri-code Missouri Revised Statutes — state statutes by citation. | |
| Mitre Attck pipeworx-io/mcp-mitre-attck MITRE ATT&CK MCP — STIX bundles from github.com/mitre/cti. | |
| Mitre Cwe pipeworx-io/mcp-mitre-cwe MITRE CWE API MCP. | |
| Mixpanel pipeworx-io/mcp-mixpanel Mixpanel MCP — wraps Mixpanel Data Export API (mixpanel.com/api) | |
| Mlb Stats pipeworx-io/mcp-mlb-stats MLB Stats API MCP — official MLB statistics (keyless). | |
| Mn Drug Price Transparency pipeworx-io/mcp-mn-drug-price-transparency Minnesota manufacturer drug price-growth and new-drug-launch disclosures — the Minnesota half of… | |
| Mo Dmv pipeworx-io/mcp-mo-dmv Missouri DMV MCP — the Department of Revenue's driver and motor-vehicle license offices, with… | |
| Mobility Database pipeworx-io/mcp-mobility-database MobilityData's open catalogue of public-transport feeds — ~4,500 GTFS schedule feeds and ~1,900… | |
| Mockdata pipeworx-io/mcp-mockdata Mock data generator MCP. |
15,751–15,800 of 115,409
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.