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 |
|---|---|
| Macos Spm App Packaging Scaffold, build, and package SwiftPM-based macOS apps without an Xcode project. Use when you need a from-scratch macOS app layout, SwiftPM targets/resources, a custom .app bundle assembly script, or signing/notarization/appcast steps outsid | |
| Swiftui Ui Patterns Best practices and example-driven guidance for building SwiftUI views and components. Use when creating or refactoring SwiftUI UI, designing tab architecture with TabView, composing screens, or needing component-specific patterns and exampl | |
| Use the Content3 Agent API to create short-form videos, manage content libraries, submit reviews for human approval, and draft social media posts. Content3 API for creating videos, managing content, submitting reviews, and posting to social media. | |
| Brand Voice Profile Define and store your brand voice profile for consistent content generation. Captures writing style, vocabulary patterns, tone preferences, and content rules... | |
| Content Ideas Generate content ideas from multiple sources. Aggregates trends from RSS feeds, Reddit, Hacker News, X/Twitter, and web search. Outputs actionable content id... | |
| RSS Reader Monitor RSS and Atom feeds for content research. Track blogs, news sites, newsletters, and any feed source. Use when monitoring competitors, tracking industr... | |
| Aviation Weather Fetch aviation weather data (METAR, TAF, PIREPs) from aviationweather.gov. Use for flight planning, weather briefings, checking airport conditions, or any pilot-related weather queries. Triggers on "METAR", "TAF", "flight weather", "airport | |
| Video Dl Download videos from YouTube, Reddit, Twitter/X, TikTok, Instagram, and 1000+ other sites using yt-dlp. Use when user provides a video link and wants to download it. | |
| jira-issue-analyzer Jira 问题分析编排器。负责获取 issue 与附件、委托日志分析 subagent，并产出最终 Markdown 报告到本地目录。适用于用户要求生成 Jira 问题分析文档的场景。 | |
| Yuboto Omni API Assistant Implement, troubleshoot, and generate integrations for Yuboto Omni API (SMS/Viber/messaging endpoints, callbacks, lists/contacts/blacklist, cost/balance/acco... | |
| HabitChat Personal habit coach that tracks daily habits, streaks, and provides AI-powered coaching. Say things like "track a new habit", "log my habits", "show my stre... | |
| Mysql Skill 1.0.0 (3) MySQL 数据库管理技能。通过自然语言查询、管理 MySQL 数据库，支持 SELECT/INSERT/UPDATE/DELETE、表管理、备份恢复等操作。当用户提到 MySQL、数据库查询、建表、数据备份时使用此技能。 | |
| Sophie Mem0 企业级智能记忆系统，支持跨会话语义记忆存储与检索，实现多级长期上下文管理和自我反思学习能力。 | |
| Skill Trend Analysis 当用户需要分析 ClawHub Skills 的增长趋势、排行变化、时间范围表现或相关接口数据时使用。支持增速榜、榜单对比、搜索筛选、统计、标签、作者、时间范围与导出等 API 查询与结果解读。 | |
| 微信接龙解析 解析微信群接龙文本，提取商品清单与订单明细，按用户订单生成透视表并支持腾讯文档导出。 | |
| Alias Tool Create and manage command aliases in shell environments. Define shortcuts for frequently used commands. | |
| Ascii Tool Convert and inspect ASCII character codes and text encodings. | |
| Backup Tool Backup and restore files with compression and encryption. Use when user needs to backup important files, create scheduled backups, sync folders, encrypt sens... | |
| Cal Tool Perform cal-tool operations from the command line. | |
| Calc Tool Perform mathematical calculations from the command line. Arithmetic, trig, and unit conversion. | |
| Cat Tool Concatenate and display file contents to standard output. | |
| Chmod Tool Change file permissions using symbolic or numeric modes. | |
| Chown Tool Perform chown-tool operations from the command line. | |
| Clear Tool Perform clear-tool operations from the command line. | |
| Clipboard Tool Perform clipboard-tool operations from the command line. | |
| Cron Tool Perform cron-tool operations from the command line. | |
| Curl Tool Transfer data using HTTP, HTTPS, FTP protocols. Test APIs and download files. | |
| Cut Tool Extract specific fields or columns from text files using delimiter-based parsing. Use when you need to select columns from CSV, TSV, or delimited data. | |
| Date Tool Display and format date and time values from the command line. Use when you need to get the current date, format timestamps, or calculate date differences. | |
| Datetime Tool Comprehensive date and time manipulation toolkit supporting multiple formats, timezone conversions, calendar calculations, natural language parsing, and date... | |
| Base64 Tool Encode and decode base64 data. Support for standard and URL-safe variants. | |
| Image Processor Process and convert images with resize, crop, compress, and format conversion. Use when user needs to batch resize photos, convert image formats, compress im... | |
| Log Analyzer Analyze log files to extract insights, errors, and patterns. Use when user needs to debug application errors, find patterns in server logs, analyze access lo... | |
| Password Generator Generate secure passwords and passphrases. Use when user needs to create strong passwords, generate secure tokens, create PINs, or generate memorable passphr... | |
| Pdf Tool Work with PDF files including merge, split, extract text, and convert. Use when user needs to combine multiple PDFs, split a PDF into pages, extract text fro... | |
| Qrcode Tool Generate QR codes from text or URLs for easy sharing and scanning. Outputs as ASCII art or image files for printing and digital use. | |
| Screenshot Tool Capture screenshots and screen recordings. Use when user needs to take screenshots, record screen activity, capture windows, or create screen recordings for... | |
| System Monitor Monitor system metrics like CPU, memory, disk, and network. Use when user needs to track server performance, set up alerts for high resource usage, monitor u... | |
| Text To Speech Convert text to speech audio files. Use when user needs to create audio from text, generate voiceovers, create podcasts, or convert articles to audio. | |
| Url Shortener Create and manage short URLs with custom aliases and tracking. Use when user needs to shorten long URLs, create memorable custom links, track click statistic... | |
| Video Downloader Download videos from YouTube and other video platforms. Use when user needs to download videos for offline viewing, extract audio from videos, or save video... | |
| Web Monitor Monitor web pages for content changes with CSS selector targeting, change detection via hashing, and notification integration. Use for price tracking, conten... | |
| Env Tool Display, set, and manage environment variables in shell sessions. Use when inspecting or modifying the runtime environment. | |
| Automation Workflow Create and manage automation workflows for repetitive tasks. Use when user needs to schedule periodic data sync, chain API calls, set up triggered actions, b... | |
| Fmt Tool Simple text formatting and reflow tool. Use for reformatting paragraphs, removing extra whitespace, and cleaning up text files. | |
| Fold Tool Wrap long lines of text to a specified width. Use for formatting text files to fit within column limits. | |
| Format Tool Format and beautify text output for better readability. Use for cleaning up structured data and aligning columns. | |
| Free Tool Display amount of free and used memory in the system. Use for monitoring memory usage and diagnosing performance issues. | |
| Git Tool Useful Git commands for repository management. Use when user needs to manage git repositories, create branches, view history, stash changes, or automate git... | |
| Grep Tool Search text files for lines matching a pattern using regular expressions. Use for log analysis, code searching, and data filtering. |
25,901–25,950 of 108,824
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.