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 |
|---|---|
| RepairWorth Auto Repair Quote Checker repairworth/repairworth-mcp Checks US auto repair quote arithmetic and looks up state repair estimate laws. No market price. | |
| RepeatPost repeatpost/repeatpost-mcp Schedule and publish social media posts, write captions and create branded graphics with RepeatPost. | |
| Rephrasy rephrasyai/rephrasy-mcp Humanize AI text and check AI-detection scores from Claude, Cursor, or any MCP client. | |
| io.github.replynodes/mcp replynodes/replynodes-mcp Connect AI agents to Replynodes over the Model Context Protocol. | |
| Mem Reduct repressedalliance/memreduct-mcp Free RAM on Windows with the user's own Mem Reduct via its clean hotkey, without admin prompts. | |
| Reqbeat Hiring Signals reqbeat/mcp-server Find companies hiring for a role and geo, qualify them, and watch them for changes. | |
| CitedBy resaleiq/citedby-mcp Check a page, AI-crawler access, llms.txt and backlinks of a site. Free, read-only. | |
| Research MCP research-mcp-hq/research-mcp Cited research MCP (MCP+agent infra): brief, lookup. Fail=$0. | |
| Resemble AI resemble-ai/resemble-mcp Resemble AI: deepfake, AI-text, and site agent detection, Detect Agents, intelligence, watermarks. | |
| io.github.reshadat/outage-mcp reshadat/outage-mcp Live service outage data from 100+ status pages. Ask your AI if Cloudflare is down. | |
| TMCRA Agent Memory reshuibuduo/tmcra-mcp-server Role-aware Agent memory with cross-session recall, durable writes, and multi-Agent project scope. | |
| Tool Filter MCP respawn-llc/tool-filter-mcp MCP proxy server that filters tools from upstream MCP servers via regex-based deny list | |
| ai.responsibleailabs/rail-score responsible-ai-labs/rail-score-mcp Responsible-AI guardrails for agents: scoring with policy, injection & PII detection, DPDP. | |
| claudio-audiobook restante/claudio_audiobook Make audiobooks locally with Kokoro voices from your AI assistant. Nothing leaves your computer. | |
| io.github.resuly/daleads-mcp resuly/daleads-mcp Australian development application and property intelligence data for AI agents. | |
| ResumeState resume-state/resumestate-mcp Session continuity for AI assistants: resume any work lane where the last session stopped. | |
| io.github.retain-so/mcp-server retain-so/mcp-server Model Context Protocol server for Retain: let AI agents query churn risk and act on retention. | |
| Google Jobs (via Apify) retracn/google-jobs-scraper Search Google Jobs from AI agents: listings with salaries, full descriptions and apply links. | |
| Retro Diffusion Pixel Art retro-diffusion/retro-diffusion-mcp Generate authentic pixel art - sprites, animations, and tilesets - from any MCP client | |
| Lune Research retrogradelabs/lune-mcp-server Search peer-reviewed papers and research methodology guidance from your AI agent. | |
| MCP Memory Graph retrorobai/mcp-memory-graph Authority-weighted memory graph for AI agents with conflict detection and semantic search. | |
| Zetesis Scientific Due Diligence reutavidan/zetesis Due diligence on life-science claims: omics, trials, gene therapy. Dimension by dimension. | |
| RevClamp MCP Server revclamp/revclamp-mcp Zero-take-rate Stripe 2025-03-31.basil, Visa CE 3.0 & EU/UK VIES VAT guardrails MCP server. | |
| Revdoku revdoku/revdoku Cloud storage with email-receiving buckets. Store and share files with people and AI agents. | |
| RevenueDot revenuedot/mcp Open-source RevenueCat alternative: 38 tools for subscriptions, customers, webhooks and revenue. | |
| io.github.brandonbgreen/reversecentaur-mcp reversecentaurai/mcp-server Hire humans for tasks AI can't do. Fair trade pay floors, prepaid escrow, ethical receipts. | |
| Revinho revinhohq/revinho-mcp Read-only SaaS business intelligence from GA4, Stripe, and Google Search Console. | |
| Opportunity MCP revolutionarybukhari/opportunity-mcp Search youth opportunities (scholarships, fellowships, internships) from any AI assistant. | |
| PSX MCP revolutionarybukhari/psx-mcp Pakistan Stock Exchange in plain English — quotes, dividends, announcements, and indices. | |
| io.github.revsmoke/promptrejectormcp revsmoke/promptrejectormcp Security gateway for AI agents: detects prompt injections, jailbreaks, and common vulnerabilities. | |
| io.github.rex/rancher-mcp rex/mcp-rancher Capability-aware MCP server for Rancher-managed Kubernetes: discovery, resources, workflows. | |
| Vintage rezasoleymanifar/vintage Free financial data from eleven sources behind six verbs, point-in-time where the source allows. | |
| Company Enrichment MCP Server rezearcher/company-enrichment-mcp Live company enrichment from a domain: firmographics, contacts, tech stack + 8-ATS hiring signal. | |
| Multi-ATS Jobs MCP Server rezearcher/jobs-mcp-server Free live multi-ATS + HN job search. Comp & hiring-signal depth metered via x402/USDC. Hosted MCP. | |
| Unified Jobs MCP Server rezearcher/unified-jobs-mcp Dedup jobs feed across ATS, LinkedIn & HN, free. Metered comp & hiring-signal depth via x402/USDC. | |
| io.github.rezearcher/tech-risk rezearcher/x402-data-api Scan any MCP server for tool-poisoning/prompt-injection/exfiltration (OWASP LLM01/08) + Base data | |
| io.github.rezmeplxrf/insightsentry_mcp rezmeplxrf/insight_mcp MCP server for InsightSentry financial data API - market data, options, screeners, and more | |
| CacheBash rezzedai/cachebash Let your AI sessions talk to each other — messaging, tasks, sessions, and alerts | |
| io.github.rfdez/pvpc-mcp-server rfdez/pvpc-mcp-server Retrieve daily PVPC electricity tariffs for 2.0 TD consumers, published by Red Eléctrica. | |
| io.github.rflukerii-dev/docbot-mcp rflukerii-dev/docbot-mcp Bidirectional CSV <> JSON <> Markdown transformer | |
| Tisty rgdevment/tisty Agents plan in Markdown and work in tasks with steps, where you can follow and audit every stage. | |
| Agoragentic Agent OS MCP rhein1/agoragentic-integrations Triptych OS (Agent OS) MCP for governed routing, receipts, and USDC settlement on Base. | |
| io.github.rhel-lightspeed/linux-mcp-server rhel-lightspeed/linux-mcp-server MCP server for read-only Linux system administration, diagnostics, and troubleshooting | |
| Raven rhinocap/raven-mcp Design intelligence for coding agents: audits, design systems, and a taste profile agents consult. | |
| Rhylthyme rhylthyme/rhylthyme-mcp Real-time multi-track schedules for cooking, lab protocols, events and workouts. Validate and share. | |
| DiffBeam Gaussian Beam Optics riarosenauer/diffbeam-mcp Read-only optical catalog search plus DiffBeam server, schema, and catalog revision metadata. | |
| Volante ribato22/volante Routes to the best predicted fit from configured metadata/evidence after hard-capability filtering. | |
| unreal-mcp-ue4-for-ohd ribattrw/unreal-mcp-ue4-for-ohd UE4.25 MCP server for Unreal Editor via Python Remote Execution (OHD mod-kit retarget). | |
| io.github.ribhav-jain/docsonar ribhav-jain/docsonar Local document search over your folders: hybrid keyword+semantic, fully offline, read-only | |
| io.github.ricardo-hdrn/mcp-await ricardo-hdrn/mcp-await Condition watcher for AI assistants — wait for ports, files, URLs, processes, and more |
15,851–15,900 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.