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 |
|---|---|
| Bytesagain Marketplace Listing Lab Generate marketplace listings and SEO copy. Use when writing Amazon, Taobao, Pinduoduo, Shopee, or marketplace product titles, bullets, attributes, and QA ch... | |
| Bytesagain Mcp Connect AI agents to BytesAgain skill search via MCP SSE. Shows setup commands for OpenClaw, Claude Desktop, and curl. No files modified. | |
| Bytesagain Social Commerce Video Kit Draft TikTok Shop and short-video commerce scripts. Use when creating hooks, UGC scripts, product demos, livestream cues, captions, or creator briefs. | |
| Bytesagain Storefront Page Kit Build product pages for Shopify-style stores and independent sites. Use when drafting PDP sections, SEO metadata, FAQ blocks, trust badges, and conversion copy. | |
| Cad cad reference tool | |
| Cairo Use when writing Cairo smart contracts for StarkNet, looking up syntax and types, defining storage and events, generating contract templates, or reviewing te... | |
| Cc Switch Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Cc Switch concepts, best practices, and implementation patterns. | |
| Certcheck Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Certcheck concepts, best practices, and implementation patterns. | |
| Chefpad Manage recipes and grocery lists with ingredient tracking and meal plans. Use when adding recipes, searching by ingredient, or building shopping lists. | |
| Chinese Calendar Cn 中国农历工具。节气查询、生肖年份、黄道吉日、传统节日、天干地支、农历转换。Chinese lunar calendar with solar terms, zodiac, auspicious dates, festivals, and Heavenly Stems. | |
| Cmms Computerized maintenance management system | |
| Compliance Track compliance requirements and generate audit trail reports. Use when auditing controls, checking policies, generating audit trails. | |
| Container Analyzer Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Container Analyzer concepts, best practices, and implementation p... | |
| Copy Copy operations reference — file duplication, rsync patterns, CoW, buffer strategies, and cross-platform sync. Use when duplicating files, syncing directorie... | |
| Coze Studio An AI agent development platform with all-in-one visual tools, simplifying agent creation, debugging coze studio, typescript, agent, agent-platform. | |
| Crypto Tax Calc Cryptocurrency tax reference — IRS guidance, FIFO/LIFO/HIFO cost basis methods, Form 8949, tax loss harvesting, and DeFi transaction categorization | |
| Crypto Whale Tracker Reference tool for blockchain and crypto — covers intro, quickstart, patterns and more. Quick lookup for Crypto Whale Tracker concepts, best practices, and i... | |
| Currconv Convert currencies using frankfurter.app free API. Use when converting amounts, checking exchange rates, or viewing rate history. Requires curl. | |
| Dataview Explore CSV and JSON files with quick queries, filters, and aggregation. Use when inspecting data, running queries, filtering rows, aggregating. | |
| Deepfocus Run Pomodoro sessions with break timers and productivity tracking. Use when starting focus sessions, tracking streaks, reviewing productivity. | |
| Devops Journey Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Devops Journey concepts, best practices, and implementation patte... | |
| Dex Aggregator DEX aggregation reference — routing algorithms, 1inch Fusion mode, CowSwap batch auctions, sandwich attack protection, and swap API endpoints | |
| Dispute Letter 纠纷投诉信生成。消费者投诉、房东纠纷、劳动争议、保险理赔、银行投诉。Dispute letter generator. 投诉信、纠纷、维权。 | |
| Dockerlabs Learn Docker hands-on with tutorials on containers and orchestration. Use when studying Docker, practicing networking, exploring swarm mode. | |
| Education Generate study materials. Use when creating study plans, quizzes, flashcards, tracking progress, or scheduling review sessions. | |
| Email Template 邮件模板库。欢迎邮件、Newsletter、事务邮件、冷启动邮件、跟进邮件、催款邮件模板生成。Email template library with welcome, newsletter, transactional, cold outreach, follow-up. | |
| Etl Build ETL pipelines with data ingestion, cleaning, and validation steps. Use when ingesting sources, transforming formats, validating data, or scheduling loads. | |
| Exercise Form Exercise form guide with warmup routines and workout plans. Use when planning workouts. | |
| Ferpa FERPA compliance reference — student records privacy, educational rights, consent requirements, and institutional obligations under the Family Educational Ri... | |
| Fortune Teller 算命娱乐。塔罗牌、易经占卜、每日运程、缘分测试、数字命理、手相(娱乐)。Fortune teller for fun with tarot, I Ching. 算命、塔罗、占卜、娱乐。 | |
| Fridge Track fridge and pantry inventory with expiry reminders and grocery lists. Use when logging groceries, checking expiry dates, or building shopping lists. | |
| Funnlp Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Funnlp concepts, best practices, and implementation patterns. | |
| Habithero Habit tracker with streak counting and visual calendars. Use when you need habithero. | |
| Hash Generate MD5 and SHA checksums, verify integrity, and compare hash values. Use when computing checksums, verifying downloads, or comparing hash outputs. | |
| Homeassistant Toolkit Reference tool for life — covers intro, quickstart, patterns and more. Quick lookup for Homeassistant Toolkit concepts, best practices, and implementation pa... | |
| Homemade Machine Learning Skill Machine learning skill: find, explain, and implement ML algorithms with interactive Jupyter Notebook links. Covers linear regression, logistic regression, ne... | |
| Htpasswd Generate htpasswd entries for Apache/Nginx basic auth password management. Use when creating credentials, managing password files, or verifying users. | |
| Image Labeler Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Image Labeler concepts, best practices, and implementation patterns. | |
| Inverter Inverter and VFD parameter calculator. Use when json inverter tasks, csv inverter tasks, checking inverter status. | |
| Landing Generate HTML landing pages from templates with SEO optimization. Use when creating web pages. | |
| Lottery Generate lottery numbers and check results. Use when picking numbers for draws. | |
| Macd Calculate MACD from price data. Use when computing MACD/signal/histogram from a price series, spotting crossovers, reading momentum, or planning MACD-based e... | |
| Meeting Agenda 会议议程管理。议程创建、站会模板、复盘会、一对一、决策会议、会议纪要。Meeting agenda with standups, retrospectives, one-on-ones, decision meetings, minutes. 会议、议程、站会、纪要。 | |
| Meme Coin Scanner Scan new meme coins for risks and opportunities — honeypot detection, liquidity analysis, holder concentration. | |
| Meme Generator 表情包文案生成。梗图创作、热门模板、反应表情、图片配文、病毒传播。Meme text generator with trending templates. 表情包、梗图、搞笑。 | |
| Mental Health 心理健康助手。情绪自查、呼吸练习、情绪日记、心理资源、压力管理、感恩练习。Mental health tool with mood check, breathing exercises, journaling, resources, stress management. | |
| Mindmap Create and visualize mind maps in the terminal with branching and export. Use when brainstorming ideas, organizing thoughts, exporting mind map structures. | |
| Ml Visualizer Visual analysis and diagnostic tools to help machine learning model selection. ml-visualizer, python, anaconda, estimator, machine-learning, matplotlib. | |
| Moodring Reference tool for life — covers intro, quickstart, patterns and more. Quick lookup for Moodring concepts, best practices, and implementation patterns. | |
| Mychef Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Mychef concepts, best practices, and implementation patterns. |
17,401–17,450 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.