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 |
|---|---|
| Public Data Catalog yhay81/public-data-catalog Reviewed public-data search and execution with provenance and verifiable integrity receipts. | |
| Oracle3 prediction-market arbitrage checks yichengyang-ethan/oracle3-prediction-market-agent Kalshi and Polymarket data, venue fees, no-arbitrage checks and paper execution for AI agents. | |
| ImgKits MCP yichong1/mcp-imgkits ImgKits gateway MCP: translation (text/doc/image/subtitle) and watermark add/remove tools. | |
| Embodify yidayang/embodify Give your agent a body: observe and control simulated robots (LIBERO, RoboDojo) over MCP. | |
| io.github.yifanyifan897645/git-summary yifanyifan897645/git-summary-mcp Git repo intelligence: summaries, blame, changelogs, branch health, and history search | |
| io.github.yifanyifan897645/mcp-checkup yifanyifan897645/mcp-checkup Analyze your MCP setup: token costs, grades, duplicates, and optimization tips | |
| io.github.yifanyifan897645/webcheck yifanyifan897645/webcheck-mcp Website health analysis: SEO, accessibility, performance, security, and broken links | |
| io.github.YimingYAN/fivetran-mcp yimingyan/fivetran-mcp MCP server for Fivetran API - manage syncs, check status, and control data pipelines | |
| io.github.yiminspace/quarry yiminspace/quarry Safety-railed database access: Postgres, MySQL, SQLite, Redis. Read-only by default. | |
| SciX / NASA ADS yipihey/scix-client Search the astronomy and physics literature (SciX / NASA ADS): papers, citations, metrics, BibTeX. | |
| PLAXIS yixuanzhong/plaxis-mcp Windows-local MCP server for PLAXIS 2D Remote Scripting: geometry, staged construction, results. | |
| io.github.yjhann33-design/korea-stock-insight-mcp yjhann33-design/korea-stock-insight-mcp Korean stock market MCP — DART disclosures + KRX prices, English-first for global LLM analysts. | |
| io.github.yk647/globalrules yk647/globalrules-mcp Verified country facts (VAT, holidays, visas; 114 countries). Free + paid (x402 USDC) tools. | |
| Word MCP Live ykarapazar/word-mcp-live Live Microsoft Word editing via MCP — tracked changes, undo, comments, 40+ tools | |
| com.faireplace/public-tools ykarmouta/faireplace-public-mcp French rental tools: create & e-sign a lease, rent control, IRL, deposit, receipts (France). | |
| io.github.ykastelnik/realevents ykastelnik/realevents-mcp Create and manage events in seconds from your AI assistant. No account needed. | |
| io.github.yksanjo/gmem yksanjo/gmem Persistent, Solana-aware project memory for AI coding agents. Typed entities + git-aware diffs. | |
| io.github.ykshah1309/financial-hub-mcp ykshah1309/financial-hub-mcp SEC EDGAR filings, XBRL financials, FRED economic data, and real-time market quotes | |
| io.github.ykshah1309/global-sentinel-mcp ykshah1309/global-sentinel-mcp Polymarket, GDELT, OpenSky, Cloudflare Radar unified as one MCP server. | |
| Live Audio Intelligence ykshah1309/live-audio-intelligence-mcp Live webcast transcription + vocal stress analysis (F0 jitter, hesitation) for earnings calls. | |
| Stealth Agent Browser ykshah1309/stealth-agent-browser-mcp Stealth Chromium MCP server with hybrid AOM + Set-of-Mark vision and Readability extraction. | |
| io.github.lyf-wxy/spomory yliuai/spomory Explainable graph-retrieval memory engine with an RL-trained management policy. | |
| lavela ym2629/lavela-mcp Deploy a repo to a live app from chat: servers, Postgres, domain, email, Stripe, security scan. | |
| Yahoo! Shopping MCP ymuichiro/yahoo-shopping-mcp Read-only Yahoo! Shopping product search via the Yahoo! Shopping Item Search API v3. | |
| plctap ymxc152/plctap Agent-PLC MCP Server: read & diagnose Modbus / FINS / MELSEC / S7 / IEC 104 / ENIP / OPC UA PLCs. | |
| io.github.ynishi/mini-app-mcp ynishi/mini-app-mcp Agent-First CRUD store MCP server — 1 daemon per table, schema.yaml driven, SQLite backend | |
| io.github.ynishi/mlua-swarm ynishi/mlua-swarm MCP server for mlua-swarm: engine that compiles flow.ir Blueprints and dispatches agent steps. | |
| io.github.ynishi/outline-mcp ynishi/outline-mcp Tree-structured knowledge base as an MCP server | |
| AppLaunchFlow ynnickw/applaunchflow-mcp Create app-store screenshots, social graphics, promo videos, and animated device mockups. | |
| io.github.YogiAdhik/civicrm-mcp yogiadhik/civicrm-mcp Model Context Protocol server for CiviCRM — AuthX-first, schema-introspected, write-gated. | |
| io.github.yohasacura/drawio-mcp yohasacura/drawio-mcp MCP server for creating and editing draw.io / diagrams.net XML files programmatically. | |
| io.github.yokingma/one-search-mcp yokingma/one-search-mcp Web search, URL discovery, scraping & extraction with agent-browser and search providers | |
| io.github.yokingma/time-mcp yokingma/time-mcp Time MCP Server, giving LLMs time awareness capabilities. | |
| io.github.YOLKINS/weeek-mcp yolkins/weeek-mcp Local MCP server for Weeek (stdio transport) — read-only by default, opt-in write tools. | |
| wa — safe WhatsApp automation yolo-labz/wa Safety-first WhatsApp tools: draft-gated sends, enforced rate limits, append-only audit. | |
| io.github.yolstudio26-oss/saroday-mcp-server yolstudio26-oss/saroday-mcp-server Korean Saju (사주) Four Pillars calculation + 80+ myeongni-hak (命理學) glossary terms. | |
| Reeling yomariano/reeling-mcp Social publishing, scheduling and delivery-status tools for Reeling accounts. | |
| io.github.YonasValentin/mcp-memory-graph yonasvalentin/mcp-memory-graph Local-first memory for Claude Code and any MCP client: hybrid search + knowledge graph, $0/token. | |
| io.github.yonghwan1106/mcportal yonghwan1106/mcportal Quota-guarded MCP layer over Korean public data APIs (data.go.kr), compiled from OpenAPI specs | |
| Mergetrain yongjip/mergetrain Queue parallel-agent worktree branches, test together, serialize and recover Git pushes. | |
| Creator SEO MCP yoshyaes/creator-seo-mcp SEO MCP server for creators. Ranks Google Search Console opportunities by ad revenue, not clicks. | |
| MarkdownPointer yotsuda/markdownpointer Markdown viewer for AI-assisted document review. Click any element to copy file path + line number. | |
| io.github.YottaMeta/yotta-verify-mcp yottameta/yotta-verify-mcp Pre-install security scanner for AI agent skills (local stdio MCP). Offline static scan; no upload. | |
| io.github.youbotapi/gpt-image-mcp youbotapi/gpt-image-mcp Generate and edit images with GPT Image 2.5 for $0.029 — free key, 50 credits, no card. | |
| You.com Web Access & AI youdotcom-oss/mcp Web search, AI agent, and content extraction via You.com APIs | |
| io.github.YounesBensafia/overleaf-mcp-server younesbensafia/overleaf-mcp-server MCP server for managing Overleaf projects through Git synchronization. | |
| Korea Data MCP youngsoonlee/korea-data-mcp Korean public data: corporate filings, stock prices, apartments, statutes, economic statistics | |
| io.github.your-ko/mcp-k8s-ro your-ko/mcp-k8s-ro Read-only Kubernetes MCP server: inspect resources, logs, events, and metrics. Secrets are masked. | |
| YourICP youricp/mcp-server Enrich contacts by email or LinkedIn URL and build targeted B2B audiences. | |
| io.github.yourtablecloth/tablecloth-mcp yourtablecloth/tableclothmcp Open Korean e-Gov and finance sites in a clean, disposable Windows Sandbox with security programs. |
19,401–19,450 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.