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 |
|---|---|
| io.github.lapfelix/xcodemcp lapfelix/xcodemcp Control Xcode directly via JXA for build, test, debug operations with XCLogParser integration | |
| Refinery MCP larelabs/refinery-mcp Clean raw HTML into LLM-ready text before agents spend tokens. | |
| Not Work larklaon/one-bad-idea An inter-agent graffiti wall for one completely optional trace. | |
| GateCheck by LarryBuildsAI larrylemonbot/gatecheck One-cent x402 and MCP readiness checks plus fixed-price marketplace launch packs. | |
| ResultRail by LarryBuildsAI larrylemonbot/resultrail-mcp-server Five-to-twelve-cent source-attributed public URL and domain result packs for AI agents. | |
| Signal Desk by LarryBuildsAI larrylemonbot/signal-desk-mcp-server One-to-three-cent spend routing, lead research, token-risk, and agent-tool comparison preflights. | |
| io.github.lars20070/mathematica-mcp lars20070/mathematica-mcp MCP server for WolframScript | |
| io.github.larsbaunwall/unlinked larsbaunwall/unlinked Your LinkedIn profile and recent activity as JSON, via CLI or MCP server (EEA and Switzerland only). | |
| io.github.las7/memharness las7/memharness Bi-temporal, provenance-carrying long-term memory for AI agents, in one SQLite file. | |
| com.travelanimator/mcp lascade-co/travelanimator-mcp Make animated travel-route videos: plan a route, style the animation, render an MP4. | |
| Telegram Managed Bot Factory laser54/telegram-managed-bot-factory Provision owner-confirmed isolated Telegram Managed Bot instances. | |
| Lassare lassare-hq/agent-configs Human-in-the-loop for AI coding agents — ask questions, get approvals via Slack. | |
| io.github.LassiB999/tooldash-mcp lassib999/tooldash-mcp Offline PDF and text tools: merge, extract pages, inspect, clean text. No upload, no API key. | |
| Last9 Observability MCP last9/last9-mcp-server Seamlessly bring real-time production context—logs, metrics, and traces—into your local environment to auto-fix code faster. | |
| Axis Iliad - Codebase Intelligence For Agentic Commerce lastmanupinc-hub/axis-iliad Codebase intelligence for agents: 152 structured artifacts across 21 programs, one call. | |
| LastPing lastping-dev/lastping-app AI agent monitoring: alerts when your agents fail, stall or need you | |
| LastSearch-AI lastsearch-hq/lastsearch Evidence-backed web research for AI agents. Real-time search with cited claims, confidence scores, and compare mode showing raw LLM hallucination vs evidence-backed answers. | |
| mcp-abacus laszlopere/mcp-abacus Pure-Python MCP server for type-faithful calculation — evaluate expressions under fixed-point, IEEE-754 double, or exact rational arithmetic, with every answer labelled with its precision (exact vs inexact). | |
| mcp-bytesmith laszlopere/mcp-bytesmith A pure-Python MCP server providing local byte-wrangling utilities including encoding, hashing, number conversion, and Ethereum primitives, with no network calls required. | |
| mcp-gnu-units laszlopere/mcp-gnu-units Unit converter for AI agents, powered by the GNU units database — convert 3000+ units of measurement, evaluate compound unit expressions, reduce to SI base units, dimensional analysis. Offline, deterministic. | |
| mcp-kodi laszlopere/mcp-kodi An MCP server that lets an AI assistant control a Kodi media player over Kodi's JSON-RPC API — transport, volume, library search, queue management, and playback history. Written in C on the GLib stack. | |
| mcp-molecules laszlopere/mcp-molecules An MCP server for chemistry: it computes molecular weights and isotope distributions from chemical formulae and resolves compound name/formula lookups, backed by NIST atomic-weight data and a cached finder over multiple online and offline s | |
| mcp-tmux laszlopere/mcp-tmux A comprehensive MCP server for driving tmux sessions, windows, panes, sending keystrokes, and reading pane output locally or over SSH, enabling real-time collaborative pairing with AI. | |
| io.github.latent-9/reddit-growth-mcp latent-9/reddit-growth-mcp Find where to post on Reddit and score your draft before posting — no API keys needed. | |
| Alpaca Trading MCP Server laukikk/alpaca-mcp A Model Context Protocol server that interfaces with Alpaca trading API, allowing users to manage portfolios, place trades, and access market data through natural language interactions. | |
| io.github.imankha/log-reducer launch-it-labs/log-reducer Reduces log files for AI consumption — 50-90% token reduction via 18 deterministic transforms. | |
| BeanHub launchplatform/beanhub-mcp Read and update hosted Beancount books over OAuth. No CLI access token. | |
| io.github.laundromatic/shopgraph laundromatic/shopgraph Clean product data from any URL. Schema.org + AI extraction. 200 free calls/month. | |
| tvsub MCP launzi/tvsub-mcp Control tvsub for Apple TV.app: subtitles, glossary-aware translation, overlay, styling, and sync. | |
| io.github.laureennicholson635/automatedrcm-billing-mcp laureennicholson635/automatedrcm-billing-mcp Medical-billing tools for AI agents: prior-auth checks, denial decoding, claim triage, appeals. | |
| io.github.laurells/outflow-mcp laurells/outflow-mcp MCP server exposing an Outflow workspace's live architecture graph as context for AI coding agents | |
| ghidraMCP lauriewired/ghidramcp An MCP server that allows LLMs to autonomously reverse engineer applications by exposing Ghidra functionality, enabling decompilation, analysis, and automatic renaming of methods and data. | |
| io.github.laveeshb/logicapps-mcp laveeshb/logicapps-mcp MCP server for Azure Logic Apps - debug workflows, manage runs, and authoring | |
| Priorbit — IP database for agents lawless-inc/priorbit US patents, applications and trademarks with full claims, owners, drawings and live USPTO records. | |
| Bitbucket MCP Server lawp09/bitbucket-mcp MCP server for Bitbucket API - manage repositories, pull requests, comments, pipelines and more | |
| citio lawrencehui/citio Self-hosted coding agent that runs Claude Code or Codex in your own infrastructure and works from Slack. Exposes codebase investigation, file edits, branch and PR creation, allowlisted command execution, CI status and an audit log as MCP to | |
| Lawstronaut lawstronaut-fzco/lawstronaut-mcp Connect AI to millions of laws and court cases with the Lawstronaut MCP. | |
| Laxis laxis-tech/laxis-mcp Search and read your Laxis meeting transcripts, AI summaries, and participants from Claude. | |
| Layerre layerre/layerre-mcp Turn Canva designs into templates and render image/PDF variants via the Layerre API. | |
| Layers Marketing MCP layers/mcp Give your agent marketing superpowers: research, renders, delivery, paid campaigns, measurement. | |
| Layerz layerzlabs/layerz-mcp Financial models Claude builds and edits: items, formulas, dependencies, branches. Exports to Excel. | |
| Layoza layoza/layoza Design systems, layout and motion guidance for AI agents, plus headless Chromium visual QA. | |
| Layven layvenio/layven-mcp Shared drive for your agents and teammates. | |
| io.github.lazogio/rabbit-mcp lazogio/rabbit-mcp Contract-first MCP server for RabbitMQ: one typed tool per message contract, safe error recovery. | |
| io.github.lazyants/hetzner lazyants/hetzner-mcp-server MCP server for the Hetzner Cloud API — servers, networks, volumes, firewalls, and more. | |
| io.github.lazyants/lexware lazyants/lexware-mcp-server MCP server for the Lexware Office API — invoices, contacts, articles, and vouchers. | |
| io.github.lazyants/transkribus lazyants/transkribus-mcp-server Transkribus REST and Processing APIs — collections, HTR/OCR; default v1, optional v2 beta. | |
| FauxGen MCP lazyinvestor/fauxgen-mcp Enables Cursor, Claude, Windsurf, and other compatible hosts to generate fictional identities, addresses, phone numbers, emails, companies, device/network details, and checksum-valid test payment data across 66 countries. It also provides d | |
| io.github.lazymac2x/crypto-signal lazymac2x/crypto-signal-api Cloudflare Workers MCP server: crypto-signal | |
| io.github.lazymac2x/email-validator lazymac2x/email-validator-api Cloudflare Workers MCP server: email-validator |
10,801–10,850 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.