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
Set up the Beacon MCP server for me so you can check MCP servers and agent skills against Beacon Intel before I install them. Beacon Intel is a free security index of the MCP servers and skills public registries list. It needs a free Beacon account; there is no API key. - Server name: beacon-managed - Transport: Streamable HTTP - URL: https://mcp.beacon.sh - Auth: OAuth (sign in through the browser when prompted) Add it the way you normally add MCP servers (your CLI command or your MCP config file), walk me through the browser sign-in, then confirm it connects and lists its Intel tools: beacon_intel_lookup, beacon_intel_get_artifact and beacon_intel_check. To finish, use beacon_intel_lookup on one MCP server I already have installed and summarize its risk for me.
Paste this into any coding agent. It adds the server with its own MCP setup.
| Name | Risk |
|---|---|
| Eclipse Nexus Witness cyan-eclipse-technologies-llc/eclipse-nexus-witness-mcp Sealed, vintage-stamped fixture tax receipts for agent checkouts. DEMO rates — NOT tax advice. | |
| Eclipse Outwatch cyan-eclipse-technologies-llc/eclipse-outwatch-mcp Independent uptime/SLA witnessing: hash-chained probe receipts, recomputable trust. LOCAL only. | |
| Eclipse Payseal cyan-eclipse-technologies-llc/eclipse-payseal-mcp Pre-payment verdict over fixture PO/mandate/delivery triples; verdict only, never executes payment. | |
| Eclipse Phantom cyan-eclipse-technologies-llc/eclipse-phantom-mcp Phantom-charge sentinel over fixture charges + mandates; assembles dispute packs, transmits nothing. | |
| Eclipse Promptseal cyan-eclipse-technologies-llc/eclipse-promptseal-mcp Prompt seal chain + Herald approval binding + incident traceability over fixture prompts only. | |
| Eclipse Rebuttal cyan-eclipse-technologies-llc/eclipse-rebuttal-mcp Chargeback rebuttal packets from mandate+receipt chains. LOCAL/fixture, packet generation only. | |
| Eclipse Recall Witness cyan-eclipse-technologies-llc/eclipse-recall-witness-mcp Recall campaigns, witnessed: NHTSA's as-served record sealed night by night. | |
| Eclipse Receiptvault cyan-eclipse-technologies-llc/eclipse-receiptvault-mcp Return-deadline vault: deadlines computed once at purchase from fixture sealed merchant terms. | |
| Eclipse Regulens cyan-eclipse-technologies-llc/eclipse-regulens-mcp Regulation-change impact receipts mapped to declared controls. Not legal advice. | |
| Eclipse Reviewseal cyan-eclipse-technologies-llc/eclipse-reviewseal-mcp Receipt-bound review corpus with a recomputable verified-share statistic. | |
| Eclipse Roll MCP cyan-eclipse-technologies-llc/eclipse-roll-mcp Filing prep + proof: signed deltas vs the registry's own record; proof seals on exact read-back. | |
| Eclipse Safelist cyan-eclipse-technologies-llc/eclipse-safelist-mcp Freshness-windowed signed allowlist feed over fixture entries; entries expire unless re-benched. | |
| Eclipse Sandclock cyan-eclipse-technologies-llc/eclipse-sandclock-mcp Eval-expiry clock over fixture Benchkit scorecards + fixture drift evidence; local stdio MCP only. | |
| Eclipse Scamshield cyan-eclipse-technologies-llc/eclipse-scamshield-mcp First-payment witnessed risk briefing over fixture sources with receipted acknowledgment. | |
| Eclipse Scapegoat cyan-eclipse-technologies-llc/eclipse-scapegoat-mcp Failure-attribution recompute over hash-chained fixture records (local only): verdict + proof path. | |
| Eclipse Settleseal cyan-eclipse-technologies-llc/eclipse-settleseal-mcp Three-way settlement reconciliation (simulator, fixture records): ledger vs rail vs payout. | |
| Eclipse Shelfprice cyan-eclipse-technologies-llc/eclipse-shelfprice-mcp Listing view-to-checkout drift witness over fixture pairs; seals full view terms at view time. | |
| Eclipse Shelfspace cyan-eclipse-technologies-llc/eclipse-shelfspace-mcp Sponsorship-disclosure witness over fixture placement records: sealed receipts, surfacing proofs. | |
| Eclipse Skillseal cyan-eclipse-technologies-llc/eclipse-skillseal-mcp Machine-checkable skill claims over fixture claims + receipts; no receipt renders UNVERIFIED. | |
| Eclipse Slowpay cyan-eclipse-technologies-llc/eclipse-slowpay-mcp Fixture schedules freeze on verified witnessed change; simulator only, no payments executed. | |
| Eclipse Social Core MCP cyan-eclipse-technologies-llc/eclipse-social-core-mcp One canonical, hash-bound package behind every Eclipse social adapter. It publishes nothing itself | |
| Eclipse Sourceseal cyan-eclipse-technologies-llc/eclipse-sourceseal-mcp Per-fact retrieval receipts over fixture source stores; not source truth, not answer faithfulness. | |
| Eclipse Sponsorline cyan-eclipse-technologies-llc/eclipse-sponsorline-mcp Per-action-class sponsor acceptance receipts over fixture sponsors/parties, local stdio only. | |
| Eclipse Sunset cyan-eclipse-technologies-llc/eclipse-sunset-mcp MCP deprecation radar: witnessed, hash-chained registry snapshots prove deprecated/removed tools. | |
| Eclipse Timecapsule cyan-eclipse-technologies-llc/eclipse-timecapsule-mcp Public seal registry over fixture commitments: seal before the window, score at maturity. | |
| Eclipse Toolprint cyan-eclipse-technologies-llc/eclipse-toolprint-mcp Pins MCP tool descriptions at session start; catches silent mid-session swaps. LOCAL only. | |
| Eclipse Trueprice cyan-eclipse-technologies-llc/eclipse-trueprice-mcp Quote-sealing + checkout drift witness over fixture pairs; detection only, never blocks checkout. | |
| Eclipse Trust MCP cyan-eclipse-technologies-llc/eclipse-trust-mcp Is this bench result real? Who issued it, at what scope, anchored where? One call answers. | |
| Eclipse Understudy cyan-eclipse-technologies-llc/eclipse-understudy-mcp Delegation subset proofs over Till-grammar fixture mandates; proofs only, never grants authority. | |
| Eclipse Verbatim — Executive Orders cyan-eclipse-technologies-llc/eclipse-verbatim-eo-mcp Executive Orders, sealed: per-section hashes plus a provenance-typed disposition graph. | |
| Eclipse Verbatim MCP cyan-eclipse-technologies-llc/eclipse-verbatim-mcp Title 26, sealed: per-section hashes, a recomputable signed manifest, byte-for-byte cite-check. | |
| Eclipse Voiceprint cyan-eclipse-technologies-llc/eclipse-voiceprint-mcp Per-call voice continuity tokens over fixture call records; identifier-level detection only. | |
| Eclipse Ward cyan-eclipse-technologies-llc/eclipse-ward-mcp Guardian veto verdicts + receipts over fixture actions; local/simulator only. | |
| Eclipse Warranty cyan-eclipse-technologies-llc/eclipse-warranty-mcp Warranty witness for agent purchases: sealed, transferable claim packs. LOCAL/fixture only. | |
| io.github.cyanheads/bls-mcp-server cyanheads/bls-mcp-server Fetch US Bureau of Labor Statistics data — CPI, unemployment, wages, JOLTS, and more via MCP. | |
| io.github.cyanheads/eia-mcp-server cyanheads/eia-mcp-server Browse and query the EIA API v2 — electricity, petroleum, natural gas, coal, forecasts via MCP. | |
| io.github.cyanheads/fred-mcp-server cyanheads/fred-mcp-server Search and fetch ~800K Federal Reserve economic time-series from the FRED API via MCP. | |
| io.github.cyanheads/gbif-mcp-server cyanheads/gbif-mcp-server Search GBIF species taxonomy, occurrence records, datasets, and publishers. | |
| io.github.cyanheads/mcp-ts-template cyanheads/mcp-ts-template TypeScript template for building MCP servers with declarative tooling, observability, and auth. | |
| io.github.cyanheads/noaa-cdo-mcp-server cyanheads/noaa-cdo-mcp-server Search NOAA CDO stations and datasets, fetch historical weather observations. | |
| io.github.cyanheads/nominatim-mcp-server cyanheads/nominatim-mcp-server Geocode, reverse geocode, and run Overpass spatial queries on OpenStreetMap data. | |
| io.github.cyanheads/uspto-mcp-server cyanheads/uspto-mcp-server Search USPTO patent applications, PTAB trial proceedings, and petition decisions. | |
| io.github.cybeleri/database-admin cybeleri/database-mcp-server Database admin MCP: schema inspection, query optimization for PostgreSQL and MySQL | |
| io.github.cybeleri/finance cybeleri/finance-mcp-server Financial data MCP server: stock quotes, crypto prices, portfolio tracking, market analysis | |
| com.craftedtrust/mcp-shield cybercraftsolutionsllc/trust-gated-agent-example Trust verification for MCP servers. Check scores, scan for security issues, search 4,200+ servers. | |
| Bostrom MCP cyberia-to/bostrom-mcp 86-tool MCP server for Bostrom blockchain: read chain state and sign transactions | |
| Pinloft: Batch Geocoder — Address to Lat/Long + Census FIPS cybermax-tools/product-factory Pinloft: US address to lat/lon, county, FIPS; reverse geocoding. Free, no key. | |
| io.github.CyberPunk11147/cyberwarex-chain-data cyberpunk11147/cyberwarex-mcp EVM onchain data: wallet, token, price, gas, transactions, ENS across 5 chains. | |
| io.github.CyberPunk11147/cyberwarex-defi-oracle cyberpunk11147/cyberwarex-mcp Token safety: honeypot sim, contract powers, rug checks, watch alerts, plain card, paper test. | |
| io.github.CyberPunk11147/cyberwarex-voice-stt cyberpunk11147/cyberwarex-mcp Speech-to-text transcription for AI agents. |
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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.