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/release-notes-forge-mcp mrfentmen/release-notes-forge-mcp Summarize local Git release shape without returning commit messages, paths, hashes, or remotes. | |
| io.github.mrfentmen/repology-mcp mrfentmen/repology-mcp Repology: package versions across many software repositories. | |
| io.github.mrfentmen/restful-api-dev-mcp mrfentmen/restful-api-dev-mcp Test objects from restful-api.dev. No key required. | |
| io.github.mrfentmen/rhymebrain-mcp mrfentmen/rhymebrain-mcp Rhyming words from RhymeBrain. No key required. | |
| io.github.mrfentmen/rick-and-morty-mcp mrfentmen/rick-and-morty-mcp Characters, episodes, and locations from the Rick and Morty universe. | |
| io.github.mrfentmen/riddles-mcp mrfentmen/riddles-mcp Random riddles. No key required. | |
| io.github.mrfentmen/rng-mcp mrfentmen/rng-mcp Roll dice, flip coins, and generate random values locally. No network and no key. | |
| io.github.mrfentmen/roblox-mcp mrfentmen/roblox-mcp Roblox user profiles from the public API. No key required. | |
| io.github.mrfentmen/robohash-mcp mrfentmen/robohash-mcp Build RoboHash robot avatar image URLs from any seed text. No key required. | |
| io.github.mrfentmen/ron-swanson-mcp mrfentmen/ron-swanson-mcp Ron Swanson quotes from the Ron Swanson Quotes API. No key required. | |
| io.github.mrfentmen/rss-mcp mrfentmen/rss-mcp RSS in one place: direct feed parsing and rss2json conversion for any feed URL. No key required. | |
| io.github.mrfentmen/runtime-support-mcp mrfentmen/runtime-support-mcp Summarize runtime declarations across local manifests and CI files without returning versions,... | |
| io.github.mrfentmen/rxnav-mcp mrfentmen/rxnav-mcp Drug names, identifiers, and properties from NIH RxNav. No key required. | |
| io.github.mrfentmen/satnogs-mcp mrfentmen/satnogs-mcp SatNOGS DB: satellite transmitter and observation data. | |
| io.github.mrfentmen/schema-compatibility-mcp mrfentmen/schema-compatibility-mcp Compare local JSON schema shape fingerprints without returning property names, values, paths, or... | |
| io.github.mrfentmen/scrabble-mcp mrfentmen/scrabble-mcp Score words and find valid plays for Scrabble locally. No network and no key. | |
| io.github.mrfentmen/secret-hygiene-mcp mrfentmen/secret-hygiene-mcp Count secret-like patterns in bounded local files without returning values, keys, paths,... | |
| io.github.mrfentmen/sefaria-mcp mrfentmen/sefaria-mcp Jewish texts from Sefaria. No key required. | |
| io.github.mrfentmen/segaretro-mcp mrfentmen/segaretro-mcp Use this MCP server to Sega Retro, every Sega game, console, and unreleased hardware. Tools... | |
| io.github.mrfentmen/seismicportal-mcp mrfentmen/seismicportal-mcp Earthquakes from the EMSC seismic portal. No key required. | |
| io.github.mrfentmen/semantic-scholar-mcp mrfentmen/semantic-scholar-mcp Search academic papers and read citations from Semantic Scholar. No key required. | |
| io.github.mrfentmen/setlist-mcp mrfentmen/setlist-mcp Use this MCP server to Setlist.fm, concert setlists, songs played live, tour history. Tools... | |
| io.github.mrfentmen/shebang-sherpa-mcp mrfentmen/shebang-sherpa-mcp Aggregate local script portability risks without exposing script text or project names. Tools... | |
| io.github.mrfentmen/shields-mcp mrfentmen/shields-mcp Generate shields.io style badge URLs. No key required. | |
| io.github.mrfentmen/smogon-mcp mrfentmen/smogon-mcp Use this MCP server to competitive Pokemon, full dex data plus monthly Smogon usage statistics.... | |
| io.github.mrfentmen/solana-mcp mrfentmen/solana-mcp Solana chain status from the public RPC. No key required. | |
| io.github.mrfentmen/somafm-mcp mrfentmen/somafm-mcp SomaFM radio channels and playlists. No key required. | |
| io.github.mrfentmen/sourcegraph-mcp mrfentmen/sourcegraph-mcp Search public code on Sourcegraph. No key required. | |
| io.github.mrfentmen/spaceflight-news-mcp mrfentmen/spaceflight-news-mcp Space industry news articles from Spaceflight News. No key required. | |
| io.github.mrfentmen/spdx-mcp mrfentmen/spdx-mcp Use this MCP server to SPDX open source license metadata and compatibility helpers. Tools... | |
| io.github.mrfentmen/speedrun-mcp mrfentmen/speedrun-mcp Use this MCP server to speedrun.com, world records, category leaderboards, and runner profiles.... | |
| io.github.mrfentmen/sports-scores-mcp mrfentmen/sports-scores-mcp Live scores and game summaries for NBA, NFL, and MLB from ESPN public data. No key required. | |
| io.github.mrfentmen/sql-formatter-mcp mrfentmen/sql-formatter-mcp Format SQL queries into readable layouts locally. No network and no key. | |
| io.github.mrfentmen/ssl-cert-mcp mrfentmen/ssl-cert-mcp Inspect TLS certificates of a host: issuer, expiry, and SAN. No key required. | |
| io.github.mrfentmen/ssl-labs-mcp mrfentmen/ssl-labs-mcp TLS security grades from SSL Labs. No key required. | |
| io.github.mrfentmen/stackexchange-mcp mrfentmen/stackexchange-mcp Search questions and read answers across Stack Exchange sites. No key required. | |
| io.github.mrfentmen/star-wars-mcp mrfentmen/star-wars-mcp Look up Star Wars people, planets, and starships from the SWAPI mirror. No key required. | |
| io.github.mrfentmen/steamspy-mcp mrfentmen/steamspy-mcp Steam game player statistics from SteamSpy. No key required. | |
| io.github.mrfentmen/stellar-mcp mrfentmen/stellar-mcp Stellar ledger and account data from Horizon. No key required. | |
| io.github.mrfentmen/sudoku-mcp mrfentmen/sudoku-mcp Generate and solve Sudoku puzzles locally. No network and no key. | |
| io.github.mrfentmen/sunrise-sunset-mcp mrfentmen/sunrise-sunset-mcp Sunrise, sunset, and twilight times for any location. No key required. | |
| io.github.mrfentmen/svgl-mcp mrfentmen/svgl-mcp SVG logos from SVGL. No key required. | |
| io.github.mrfentmen/swaggerhub-mcp mrfentmen/swaggerhub-mcp Search the SwaggerHub API registry for public API definitions. No key required. | |
| io.github.mrfentmen/swift-bic-mcp mrfentmen/swift-bic-mcp Look up SWIFT and BIC bank codes from a bundled directory. No network and no key. | |
| io.github.mrfentmen/swiss-sbb-mcp mrfentmen/swiss-sbb-mcp Swiss rail from transport.opendata.ch. No key required. | |
| io.github.mrfentmen/tarot-mcp mrfentmen/tarot-mcp Draw tarot cards and read card meanings from the Tarot API. No key required. | |
| io.github.mrfentmen/techcrunch-mcp mrfentmen/techcrunch-mcp Latest startup and tech news from TechCrunch. No key required. | |
| io.github.mrfentmen/telnetbbs-mcp mrfentmen/telnetbbs-mcp Use this MCP server to Telnet BBS Guide, the directory of live retro BBSes you can still dial... | |
| io.github.mrfentmen/terraform-registry-mcp mrfentmen/terraform-registry-mcp Terraform providers and modules from the registry. No key required. | |
| io.github.mrfentmen/test-shape-mcp mrfentmen/test-shape-mcp Audit local test structure using aggregate assertions without returning test names, paths, or... |
45,351–45,400 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.