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 |
|---|---|
| Carbon Arc carbon-arc/mcp The infrastructure for the AI economy: primitives for inference, agents, and decisions. | |
| Carbon MCP carbon-design-system/carbon-mcp Explore Carbon docs, components, tokens, icons, charts, and code examples. | |
| Carbon carbondatasolutions/carbon-mcp Hire skills-assessed data professionals from any MCP host. Post your role free. | |
| fyi.carbon/carbon-fyi carbonmark/carbon.fyi-new Voluntary carbon market news and open carbon price data. Read-only, keyless. | |
| com.market0x/marketplace carbonmark/market0x Buy, sell and bid on vote-escrow NFTs and .base.eth names. Non-custodial, settles on Seaport. | |
| CarChat Inventory carchat-io/mcp Search live US dealership inventory, get market prices, and send buyer inquiries. Free, no API key. | |
| Cardog cardog-ai/mcp-server VIN decode, Canadian listings, market quotes, TC+NHTSA recalls. Full API: https://cardog.app/docs.md | |
| CARDZ MCP cardzgame/cardz-mcp Pokémon & One Piece PSA 10 data for any AI agent | |
| Mélodium MCP server exposing Mélodium program validation and reference lookup | |
| WAI Quantum OpenQASM 3 programs run, checked against their intent and signed on this machine. | |
| Oi carhaix/oi-mcp Access Oi Contexts, Workflows, Skills, Guardrails, Connections, and reporting tools. | |
| fcvm carlosbravoa/fcvm Disposable Firecracker microVM sandboxes for agents: run code, snapshot, fork. Needs Linux with KVM. | |
| Autopilots by Dania.ai carlosdania/autopilots-mcp Social media automation with AI — publish, schedule, campaigns, DMs, analytics across 5 platforms. | |
| Rocketship carlosjeer/rocketship-mcp Rocketship is the customer acquisition engine. It gets you customers, then runs your business. | |
| io.github.carlosofscience/bulk-url-checker carlosofscience/bulkurlchecker-python Bulk HTTP status checker: up to 100,000 URLs per job, with redirect chains and response times. | |
| Phyll carlosphyll/phyll UX review for apps built with AI, run by your own agent. The fixes keep your design. | |
| AgentStatus MCP Index carmel-labs-inc/agentstatus-mcp-index Live public MCP Index. Search, recommend, and call healthy MCP servers. | |
| REPSLog carmeltechllc/repslog Log and read REPS time logs, properties, and categories via MCP. Requires REPSLog Premium. | |
| io.github.carruda-Global/ecosystem-aec-erp carruda-global/engenheiro-producao-ai Compliance tools for Dynamics 365, Salesforce, Oracle, SAP and Power BI integrations | |
| Arkova Verification carson-see/arkovacarson Privacy-first document verification anchored to the public ledger. | |
| io.github.carsonroell-debug/leadenrich-mcp carsonroell-debug/leadenrich-mcp Waterfall lead enrichment — cascades Apollo, Clearbit, and Hunter for max coverage | |
| MQTT Specification cartertinney/mqtt-spec-mcp Offline MCP server for navigating the OASIS MQTT 3.1.1 and 5.0 specifications | |
| CartCut cartesiancs/cartcut Edit video in the CartCut desktop editor: cuts from a transcript, captions, motion, effects. | |
| Inlay cartoonitunes/inlay-skills Make any website discoverable by AI agents via MCP, llms.txt, and structured data. | |
| Cartorio Certidao cartorio-criciuma/certidao-mcp MCP server para gerenciamento de certidoes de cartorio via IA. | |
| InfluSense AI case-resolve-tech/influencer-ai Read-only access to InfluSense influencer discovery, ratings, watchlists, and reports via MCP. | |
| Cashew MCP cashew-sg/cashew-mcp Live Singapore mortgage rates, package recommendations and home-loan calculators. | |
| Cassandra shop cassandra-botty/cassandra-shop-mcp An autonomous AI agent shop: catalogue, live vitals, payable x402 terms, and a free shape check. | |
| CAST Imaging MCP Server cast-extend/cast-imaging-mcp MCP server exposing CAST Imaging software architecture insights to AI agents | |
| Modelflare castaly-ai/modelflare-mcp Image and video generation with one Modelflare Smart API Key. | |
| io.github.Casterdly/jarvis-market-signals casterdly/jarvis-market-signals Live crypto market signals for AI agents: perp liquidations, funding, OI positioning, yield, FX. | |
| Mercadopleis castiquark/mercadopleis AI agents hire people for work they can't finish alone, paid via stablecoin escrow on Base. | |
| CastPDF castpdf/castpdf-mcp Create PDFs from your CastPDF templates or HTML, issue EU e-invoices, and look up documents. | |
| io.github.castralis122/base-web3-m2m-hub castralis122/auditor-x402 Live Base Mainnet on-chain data (gas, DEX, Aave, token risk, prices). Pay per call in USDC via x402. | |
| EkoPump catalabytes/ekopump Real-time fuel prices, alerts, and cheapest gas stations across 38+ countries. | |
| Agent Web Reader catalyst-labs-dev/catalyst-labs-mcp Search + read the web for $0.002/page; failed URLs free; per-URL errors never fail the call. | |
| Career Site Jobs Scraper catalyst-labs-dev/catalyst-labs-mcp Live jobs from companies you name, 17 ATS, one schema; misses never charged. | |
| City Council & Public Meeting Transcripts catalyst-labs-dev/catalyst-labs-mcp Council/county meeting transcripts with agenda timestamps + official votes, $0.008/audio min. | |
| Document to Markdown catalyst-labs-dev/catalyst-labs-mcp PDF/DOCX/XLSX to markdown + RAG chunks, $0.001/page; failed files never charged. | |
| Google Trends API catalyst-labs-dev/catalyst-labs-mcp Google Trends JSON + trend summary, $0.0025/keyword; rate-limited keywords never charged. | |
| Local Government Decision Lookup & Fact Check catalyst-labs-dev/catalyst-labs-mcp Verify Iowa council/county votes from official minutes after a transcript search. Verdict, tally. | |
| Podcast Transcript API catalyst-labs-dev/catalyst-labs-mcp Podcast transcripts: publisher's own for $0.01, else Whisper; budget-capped, never overspends. | |
| Website Screenshot & PDF API catalyst-labs-dev/catalyst-labs-mcp Full-page screenshots/PDFs, cookie walls removed; blocked or failed pages never charged. | |
| Website Tech Stack Lookup catalyst-labs-dev/catalyst-labs-mcp Domains in, tech stack out: 7,600+ technologies, versions, DNS/email providers. $0.003/site. | |
| YouTube Transcript API catalyst-labs-dev/catalyst-labs-mcp YouTube transcripts in bulk: 12/12 in our test, zero failures charged; human vs auto flagged. | |
| io.github.causehacker/quicksign causehacker/quicksign E-signatures for contracts and NDAs. Draft with AI, review, and send for signature. | |
| app.causely/causely causely-oss/causely-client Causal reasoning for reliability: root cause, blast radius, and service health for agents. | |
| FreeToolHub cavan1977/freetoolhub 44 calculators for AI agents: US tax, finance, business + an MCP engineering & security suite. | |
| Vantage — Signal Tracker cavendo-ai/vantage Save and query market signals from your AI conversations. | |
| Flexreport Finance cbecks1212/flexreport-mcp Live market events, research reports, and 750M+ curated equity datapoints on 2,900+ companies. |
21,401–21,450 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.