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.
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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.
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Any coding agent
Read https://intel.beacon.sh/start.md and set me up on Beacon Threat Intel
Paste this into any coding agent. It reads the guide and sets up MCP, the CLI, the API, feeds or a CI gate.
| Name | Risk |
|---|---|
| Colombia Plan Colombia trips with region-specific routing, verified entry rules, weather-aware logistics, and practical tourist safety. | |
| Color Build, inspect, adapt, and validate color systems, palettes, tokens, contrast, color-space choices, and cross-surface color behavior for UI, branding, charts... | |
| Colors Build accessible color palettes with proper contrast ratios and semantic tokens. | |
| Community Manager Manage online communities with engagement strategies, content planning, and audience growth. | |
| Companion Be a steady presence for those who need someone to talk to, without expectations or professional pretense. | |
| Company Build an agent-powered organization by mapping functions to skills and iterating on structure. | |
| Compare Rigorous comparisons with confidence parity, weighted criteria, and research depth tracking. | |
| Competing Improve systematically by analyzing losses, studying winners, and tracking progress against rivals in any competitive domain. | |
| Competitor Monitoring Track competitors with pricing alerts, feature changes, positioning analysis, and strategic dossiers. | |
| Competitor Research Deep competitor audits with market positioning, gap analysis, and actionable insights for winning strategies. | |
| Compress Compress text semantically with iterative validation, anchor checksums, and verified information preservation. | |
| Computer Science Guide CS learning from first programs to research and industry practice. | |
| Consultant Diagnose business problems, scope engagements, and deliver decision-ready recommendations with measurable outcomes and executable plans. | |
| Content Marketing Plan, create, and distribute content with editorial calendars, funnel strategy, and repurposing workflows. | |
| Contract Write contracts from scratch with guided intake, multi-party negotiation, risk analysis, and version control for lawyers, freelancers, and individuals. | |
| Contracts Organize, track, and analyze contracts with renewal alerts, clause lookups, and multi-role support for individuals, landlords, freelancers, and legal teams. | |
| Convex Build and maintain Convex backends with schema-safe modeling, query and mutation patterns, auth guards, and production rollout checks. | |
| COO / Chief Operations Officer Be the COO with process design, organizational scaling, cross-functional execution, and operational excellence. | |
| Cooking Cooks and rescues real dishes at the stove: heat control, seasoning, doneness, timing, substitutions, and food safety. Use when a dish is bland, too salty, burnt, tough, dry, watery, rubbery, greasy, or gummy; when a sauce breaks, splits, c | |
| Copilot Transform your agent from chatbot to copilot with context persistence, proactive anticipation, and opinionated help across sessions. | |
| Copywriting Writes persuasive marketing copy across formats, covering tone, structure, clarity, and the discipline of selling benefits rather than features. | |
| CORS Configure Cross-Origin Resource Sharing correctly to avoid security issues and debugging pain. | |
| Cosmos Assist with Cosmos ATOM transactions, IBC transfers, staking, and cross-chain ecosystem navigation. | |
| Couple Strengthen relationships with milestone tracking, personalized celebrations, date planning, and shared memory across all relationship stages. | |
| Course Create, launch, and manage online or in-person courses with curriculum design, content production, marketing automation, and student engagement. | |
| CPA Assist CPA exam candidates with tailored section order, track 18-month pass windows, analyze scores, manage NTS deadlines, and verify state eligibility requi... | |
| CPO / Chief Product Officer Drive product strategy with roadmap prioritization, team leadership, board communication, and competitive intelligence. | |
| C++ Avoid common C++ mistakes — memory leaks, dangling references, undefined behavior, and ownership confusion. | |
| Creativity Generate novel ideas calibrated to user taste. Auto-learns preferred styles, risk levels, and creative directions through feedback. | |
| CRM Runs a CRM: contacts, companies, deals, pipeline stages, follow-ups, and the data hygiene that keeps it usable. Use when setting up, rescuing, or operating a CRM (personal, freelance, sales, donor, or job-search); when the pipeline needs re | |
| CRO / Chief Revenue Officer Optimize conversion rates with funnel analysis, A/B testing, statistical significance, and compliance-safe experiments. | |
| Croatian Write Croatian that sounds human. Not formal, not robotic, not AI-generated. | |
| Crypto Tools Access crypto data, monitor portfolios, detect scams, and navigate exchanges with real-time APIs and security tools. | |
| C# Avoid common C# mistakes — null traps, async pitfalls, LINQ gotchas, and disposal leaks. | |
| CSO / Chief Strategy Officer Lead strategy with competitive analysis, strategic planning, growth roadmaps, and business portfolio management. | |
| CSS Writes and debugs CSS: flexbox and grid layout, z-index and stacking, responsive breakpoints, theming, and render performance. Use when a layout breaks or overflows, z-index does nothing, the page scrolls sideways, `position: sticky` won't | |
| CSV Parse and generate RFC 4180 compliant CSV that works across tools. | |
| CTO / Chief Technology Officer Acts as a chief technology officer: architecture calls, build vs buy, hiring and team scaling, tech debt, engineering metrics. Use when making technical strategy decisions or advising founders as CTO. | |
| Cursor Use Cursor safely across editor, CLI, rules, background agents, Bugbot, and MCP workflows with repo-aware context and reviewable execution. | |
| Customer Support Resolve issues, communicate with empathy, and turn frustrated customers into loyal advocates. | |
| CV Create ATS-optimized resumes and CVs with proper structure, metrics, and industry targeting. | |
| CXO / Chief Experience Officer Lead customer experience with journey mapping, voice of customer programs, service design, and experience metrics. | |
| Cybersecurity Runs defensive security: alert triage, compromise investigation, attack paths, vulnerability prioritization, detection, and risk reporting. Use when an alert, a suspicious login, a reported email, encrypted files, or a possible compromise n | |
| Cycle Design custom workflow cycles for any domain. Create structured, repeatable processes that become persistent skills. | |
| Cycling Cycling training, bike fit, power zones, nutrition, safety, and maintenance essentials. | |
| Cypress Write reliable E2E and component tests with Cypress avoiding flaky selectors, race conditions, and CI failures. | |
| Czech Write Czech that sounds human. Not formal, not robotic, not AI-generated. | |
| Daily News Digest Personalized news briefings from your chosen sources, delivered morning or evening, with voice option and smart filtering. | |
| Daily Planner Plan and manage your day with prioritized tasks, calendar blocking, energy-based scheduling, and automatic commitment tracking and reminders. | |
| Danish Write Danish that sounds human. Not formal, not robotic, not AI-generated. |
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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.