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/open-notify-mcp mrfentmen/open-notify-mcp People currently in space from Open Notify. No key required. | |
| io.github.mrfentmen/openalex-mcp mrfentmen/openalex-mcp Use this MCP server to OpenAlex scholarly works, authors, institutions, and citations. Tools... | |
| io.github.mrfentmen/openapi-scout-mcp mrfentmen/openapi-scout-mcp Local read-only OpenAPI and Swagger inspection with secret-safe schema summaries. Tools include... | |
| io.github.mrfentmen/opendota-mcp mrfentmen/opendota-mcp Dota 2 heroes, match details, and player stats from OpenDota. No key required. | |
| io.github.mrfentmen/openf1-mcp mrfentmen/openf1-mcp Live Formula 1 telemetry from OpenF1. No key required. | |
| io.github.mrfentmen/openligadb-soccer-mcp mrfentmen/openligadb-soccer-mcp German soccer league match data from OpenLigaDB. No key required. | |
| io.github.mrfentmen/openplaques-mcp mrfentmen/openplaques-mcp OpenPlaques: public commemorative plaque records worldwide. | |
| io.github.mrfentmen/openverse-mcp mrfentmen/openverse-mcp Search openly licensed images from the Openverse catalog. No key required. | |
| io.github.mrfentmen/openwhyd-mcp mrfentmen/openwhyd-mcp Hot tracks and trending music from OpenWhyd. No key required. | |
| io.github.mrfentmen/osf-mcp mrfentmen/osf-mcp Open research from the Open Science Framework. No key required. | |
| io.github.mrfentmen/osrm-mcp mrfentmen/osrm-mcp Driving, cycling, and walking routes and nearest road lookups via OSRM. No key required. | |
| io.github.mrfentmen/osv-mcp mrfentmen/osv-mcp Use this MCP server to OSV open source vulnerability data and package security checks. Tools... | |
| io.github.mrfentmen/otp-mcp mrfentmen/otp-mcp Generate and verify time based one time passwords locally. No network and no key. | |
| io.github.mrfentmen/overpass-mcp mrfentmen/overpass-mcp Query OpenStreetMap features like cafes, schools, and parks through Overpass. No key required. | |
| io.github.mrfentmen/package-registry-mcp mrfentmen/package-registry-mcp Look up npm and PyPI packages: versions, descriptions, and metadata. No key required. | |
| io.github.mrfentmen/packagist-mcp mrfentmen/packagist-mcp Look up PHP packages, versions, and downloads from Packagist. No key required. | |
| io.github.mrfentmen/password-breach-check-mcp mrfentmen/password-breach-check-mcp Check if a password has appeared in known breaches without sending the password. No key required. | |
| io.github.mrfentmen/password-generator-mcp mrfentmen/password-generator-mcp Generate strong random passwords locally. No network and no key. | |
| io.github.mrfentmen/password-strength-mcp mrfentmen/password-strength-mcp Score password strength locally with the zxcvbn algorithm. No network and no key. | |
| io.github.mrfentmen/patents-mcp mrfentmen/patents-mcp Search US patents and patent applications from Google Patents. No key required. | |
| io.github.mrfentmen/pbdb-mcp mrfentmen/pbdb-mcp Fossil occurrences and taxa from the Paleobiology Database. No key required. | |
| io.github.mrfentmen/pdf-generator-mcp mrfentmen/pdf-generator-mcp Generate PDF documents locally with text, headings, and pages. No network and no key. | |
| io.github.mrfentmen/peertube-mcp mrfentmen/peertube-mcp Search PeerTube.tv federated videos and read instance info. No key required. | |
| io.github.mrfentmen/pexels-mcp mrfentmen/pexels-mcp Search free stock photos on Pexels. No key required. | |
| io.github.mrfentmen/phemex-mcp mrfentmen/phemex-mcp Crypto prices from Phemex. No key required. | |
| io.github.mrfentmen/phone-validator-mcp mrfentmen/phone-validator-mcp Validate and format international phone numbers locally. No network and no key. | |
| io.github.mrfentmen/photon-mcp mrfentmen/photon-mcp Geocoding from Photon Komoot. No key required. | |
| io.github.mrfentmen/pixelfed-mcp mrfentmen/pixelfed-mcp Pixelfed instance API: instance info and public timelines. | |
| io.github.mrfentmen/placehold-mcp mrfentmen/placehold-mcp Placeholder images from Placehold.co. No key required. | |
| io.github.mrfentmen/plos-mcp mrfentmen/plos-mcp Open research from PLOS. No key required. | |
| io.github.mrfentmen/poetry-mcp mrfentmen/poetry-mcp Search poems by title, author, or lines from PoetryDB. No key required. | |
| io.github.mrfentmen/pokeapi-mcp mrfentmen/pokeapi-mcp Look up Pokemon species, abilities, and moves from PokéAPI. No key required. | |
| io.github.mrfentmen/pokemon-tcg-mcp mrfentmen/pokemon-tcg-mcp Use this MCP server to the Pokémon TCG, search cards, sets, rarities via TCGdex. Tools include... | |
| io.github.mrfentmen/police-transparency-mcp mrfentmen/police-transparency-mcp Use this MCP server to Aggregate historical NYC police complaint statistics with no person... | |
| io.github.mrfentmen/poloniex-mcp mrfentmen/poloniex-mcp Crypto markets from Poloniex. No key required. | |
| io.github.mrfentmen/port-scanner-mcp mrfentmen/port-scanner-mcp Scan local or remote hosts for open TCP ports. Runs locally. | |
| io.github.mrfentmen/postcodes-mcp mrfentmen/postcodes-mcp UK postcode lookup from postcodes.io. No key required. | |
| io.github.mrfentmen/postman-echo-mcp mrfentmen/postman-echo-mcp HTTP request echo from Postman Echo. No key required. | |
| io.github.mrfentmen/prayer-times-mcp mrfentmen/prayer-times-mcp Islamic prayer times for a city from AlAdhan. No key required. | |
| io.github.mrfentmen/whiskyhunter-mcp mrfentmen/premium-mcps Whisky auction data from the public WhiskyHunter API. No key required. | |
| io.github.mrfentmen/protondb-mcp mrfentmen/protondb-mcp Linux game compatibility from ProtonDB. No key required. | |
| io.github.mrfentmen/pubchem-mcp mrfentmen/pubchem-mcp Look up chemical compound properties and synonyms from PubChem. No key required. | |
| io.github.mrfentmen/pubmed-mcp mrfentmen/pubmed-mcp Search PubMed biomedical literature and fetch article summaries. No key required. | |
| io.github.mrfentmen/qr-code-mcp mrfentmen/qr-code-mcp Generate QR codes as PNG images locally. No network and no key. | |
| io.github.mrfentmen/radio-browser-mcp mrfentmen/radio-browser-mcp Use this MCP server to Radio Browser, 40,000+ internet radio stations searchable by genre, tag,... | |
| io.github.mrfentmen/radio-garden-mcp mrfentmen/radio-garden-mcp Radio Garden live radio places. No key required. | |
| io.github.mrfentmen/random-animals-mcp mrfentmen/random-animals-mcp Random animal photos with facts from Some Random API. No key required. | |
| io.github.mrfentmen/random-word-mcp mrfentmen/random-word-mcp Random English words from the Random Word API. No key required. | |
| io.github.mrfentmen/rcsb-pdb-mcp mrfentmen/rcsb-pdb-mcp Look up protein structures and search the RCSB Protein Data Bank. No key required. | |
| io.github.mrfentmen/regex-mcp mrfentmen/regex-mcp Test, describe, and validate regular expressions locally. No network and no key. |
45,301–45,350 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.