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 |
|---|---|
| io.github.mrfentmen/audius-mcp mrfentmen/audius-mcp Use this MCP server to Audius, underground and independent music: trending tracks, artists,... | |
| io.github.mrfentmen/aur-mcp mrfentmen/aur-mcp Arch User Repository package search from the AUR RPC. No key required. | |
| io.github.mrfentmen/auspost-mcp mrfentmen/auspost-mcp MCP server for Australia Post: shipments, labels, order tracking and delivery updates. | |
| io.github.mrfentmen/avatar-mcp mrfentmen/avatar-mcp Generate avatar images for names or initials. No key required. | |
| io.github.mrfentmen/aviation-weather-mcp mrfentmen/aviation-weather-mcp METAR and TAF aviation weather reports from the FAA and NWS. No key required. | |
| io.github.mrfentmen/weatherbit-mcp mrfentmen/awesome-mcps Weatherbit API: current weather, forecasts, alerts, air quality. | |
| io.github.mrfentmen/worms-mcp mrfentmen/awesome-servers World Register of Marine Species: search names, read records, children and full classification. | |
| io.github.mrfentmen/baconipsum-mcp mrfentmen/baconipsum-mcp Meat-flavored placeholder text from Bacon Ipsum. No key required. | |
| io.github.mrfentmen/bankofcanada-mcp mrfentmen/bankofcanada-mcp Canadian exchange rates from Bank of Canada. No key required. | |
| io.github.mrfentmen/barcode-mcp mrfentmen/barcode-mcp Generate EAN-13 and Code-128 barcodes locally and return SVG data. No network and no key. | |
| io.github.mrfentmen/bart-mcp mrfentmen/bart-mcp Bay Area Rapid Transit departures. No key required. | |
| io.github.mrfentmen/baywheels-mcp mrfentmen/baywheels-mcp Bay Wheels bike share stations in the San Francisco Bay Area. No key required. | |
| io.github.mrfentmen/berlin-bvg-mcp mrfentmen/berlin-bvg-mcp Berlin transit from BVG transport.rest. No key required. | |
| io.github.mrfentmen/bible-mcp mrfentmen/bible-mcp Bible in one place: verse references, phrase search, and full KJV chapters. No key required. | |
| io.github.mrfentmen/bigdatacloud-mcp mrfentmen/bigdatacloud-mcp BigDataCloud client IP and reverse geocode APIs. | |
| io.github.mrfentmen/bikeindex-mcp mrfentmen/bikeindex-mcp Stolen bike reports from Bike Index. No key required. | |
| io.github.mrfentmen/bing-wallpaper-mcp mrfentmen/bing-wallpaper-mcp The daily Bing wallpaper image and its metadata. No key required. | |
| io.github.mrfentmen/biorxiv-mcp mrfentmen/biorxiv-mcp Biology preprints from bioRxiv. No key required. | |
| io.github.mrfentmen/bitbucket-mcp mrfentmen/bitbucket-mcp Bitbucket repositories and users. No key required. | |
| io.github.mrfentmen/bitcoiner-mcp mrfentmen/bitcoiner-mcp Bitcoin fee estimates from bitcoiner.live. No key required. | |
| io.github.mrfentmen/bitfinex-mcp mrfentmen/bitfinex-mcp Crypto prices from Bitfinex. No key required. | |
| io.github.mrfentmen/bitflyer-mcp mrfentmen/bitflyer-mcp BitFlyer Japan crypto exchange: tickers, order books, and markets. No key required. | |
| io.github.mrfentmen/bitget-mcp mrfentmen/bitget-mcp Crypto prices from Bitget. No key required. | |
| io.github.mrfentmen/bithumb-mcp mrfentmen/bithumb-mcp Korean crypto prices from Bithumb. No key required. | |
| io.github.mrfentmen/bitso-mcp mrfentmen/bitso-mcp Crypto prices from Bitso. No key required. | |
| io.github.mrfentmen/bitstamp-mcp mrfentmen/bitstamp-mcp Crypto prices from Bitstamp. No key required. | |
| io.github.mrfentmen/blockchain-mcp mrfentmen/blockchain-mcp Bitcoin blockchain data: latest block height, block info, address info, and mempool fee... | |
| io.github.mrfentmen/blockchair-mcp mrfentmen/blockchair-mcp Blockchain stats from Blockchair. No key required. | |
| io.github.mrfentmen/blockcypher-mcp mrfentmen/blockcypher-mcp Blockchain explorer for BTC, ETH, LTC, DOGE: block info, address balance, transaction details. | |
| io.github.mrfentmen/bls-mcp mrfentmen/bls-mcp US labor statistics from BLS. No key required. | |
| io.github.mrfentmen/bluesky-mcp mrfentmen/bluesky-mcp Bluesky actor search from the public AT Protocol API. No key required. | |
| io.github.mrfentmen/books-mcp mrfentmen/books-mcp Search books and fetch volume details from the Google Books API. No key required. | |
| io.github.mrfentmen/bored-mcp mrfentmen/bored-mcp Bored API activity suggestions: random activities, filter by type and participants. | |
| io.github.mrfentmen/brainrot-mcp mrfentmen/brainrot-mcp Use this MCP server to decodes internet slang, brainrot terms, and niche subculture vocabulary.... | |
| io.github.mrfentmen/brawl-stars-mcp mrfentmen/brawl-stars-mcp Brawl Stars brawler data from BrawlAPI. No key required. | |
| io.github.mrfentmen/brightsky-mcp mrfentmen/brightsky-mcp German weather from DWD via Bright Sky. No key required. | |
| io.github.mrfentmen/browser-mcp mrfentmen/browser-mcp Control a local headless Chrome browser: open pages, read titles, and take screenshots. | |
| io.github.mrfentmen/build-cache-mcp mrfentmen/build-cache-mcp Summarize local build and cache footprint using size and age buckets without returning paths or... | |
| io.github.mrfentmen/bundlephobia-mcp mrfentmen/bundlephobia-mcp npm bundle sizes from Bundlephobia. No key required. | |
| io.github.mrfentmen/car-recalls-mcp mrfentmen/car-recalls-mcp Vehicle safety recalls from NHTSA by make, model, and year. No key required. | |
| io.github.mrfentmen/carbon-intensity-mcp mrfentmen/carbon-intensity-mcp UK grid carbon intensity, forecast, and regional breakdown. No key required. | |
| io.github.mrfentmen/cat-mcp mrfentmen/cat-mcp Cats in one place: random facts, breed lists, breed details, and cat photos. No key required. | |
| io.github.mrfentmen/cbr-mcp mrfentmen/cbr-mcp Russian central bank daily rates. No key required. | |
| io.github.mrfentmen/cdc-data-mcp mrfentmen/cdc-data-mcp CDC public data APIs: open datasets via Socrata endpoints. | |
| io.github.mrfentmen/cdnjs-mcp mrfentmen/cdnjs-mcp Search JavaScript libraries on cdnjs. No key required. | |
| io.github.mrfentmen/celestrak-mcp mrfentmen/celestrak-mcp Fetch satellite TLE orbital elements and catalog data from CelesTrak. No key required. | |
| io.github.mrfentmen/census-geo-mcp mrfentmen/census-geo-mcp Census Bureau geocoding API: address to coordinates and census geography. | |
| io.github.mrfentmen/census-mcp mrfentmen/census-mcp US Census population data by nation, state, and county. Requires a free Census API key. | |
| io.github.mrfentmen/certspotter-mcp mrfentmen/certspotter-mcp Certificate transparency lookups from Cert Spotter. No key required. | |
| io.github.mrfentmen/cex-mcp mrfentmen/cex-mcp Crypto prices from CEX.IO. No key required. |
45,001–45,050 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.