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 |
|---|---|
| Config Manage app configuration files with init, list, and add operations. Use when initializing configs, listing settings, switching environments. | |
| Consent Build cookie consent banners and track opt-in compliance status. Use when implementing GDPR consent, auditing cookies, generating privacy banners. | |
| Console Console & terminal output reference — logging levels, ANSI colors, debugging techniques, formatters. Use when styling terminal output, implementing log syste... | |
| Convert Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Convert concepts, best practices, and implementation patterns. | |
| Conveyor Conveyor system reference — belt types, motor sizing, throughput calculations, and material handling automation. Use when designing conveyor layouts, selecti... | |
| Crypto News Feed Reference tool for blockchain and crypto — covers intro, formulas, regulations and more. Quick lookup for Crypto News Feed concepts, best practices, and impl... | |
| Crypto Tracker Cn Track cryptocurrency markets in real-time. 加密货币行情追踪、比特币价格、以太坊ETH、市值排行、DeFi数据、恐惧贪婪指数、趋势币种、空投信息、RSI技术分析、均线分析、金叉死叉、DeFi收益率对比、Gas费查询。Use when checking crypto pri. | |
| Csrf Csrf reference tool. Use when working with csrf in devtools contexts. | |
| Db Explorer Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Db Explorer concepts, best practices, and implementation patterns. | |
| Diary Write diary entries with mood tracking, photos, and monthly summaries. Use when recording thoughts, tracking moods, reviewing monthly patterns. | |
| Disk disk reference tool | |
| Disk Analyzer Duf — duf — Disk Usage/Free analyzer. Automated tool for duf tasks. Use when you need Duf capabilities. | |
| Dockerps View and manage Docker container processes and stats. Use when monitoring containers. Requires docker. | |
| Dotfiles Backup, sync, and version-track dotfiles across multiple machines. Use when syncing configs, backing up settings, restoring on new machines. | |
| Equity Model cap tables, dilution scenarios, and vesting schedules for startups. Use when planning fundraising, pricing options, or tracking equity. | |
| Erp Plan resources, track inventory, and coordinate departments with reporting. Use when allocating resources, managing stock, or tracking department KPIs. | |
| Feather Apache Feather/Arrow IPC format reference. V1 vs V2 format differences, pyarrow.feather read/write with compression, R arrow package integration, Arrow type... | |
| Financial Machine Learning Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Financial Machine Learning concepts, best practices, and implemen... | |
| Finml Toolkit A curated list of practical financial machine learning tools and applications. financial machine learning, python, algorithmic-trading, cryptocurrency. | |
| Firewalld Firewalld reference tool. Use when working with firewalld in sysops contexts. | |
| Fish Fish makes utility tools simple. Use when you need fish. | |
| Fitness Log Fitness Log — Fitness Log — track workouts & progress. Personal daily-use tool for tracking and organizing your life. Use when you need Fitness Log capabilit... | |
| Flex Generate CSS Flexbox layouts using interactive CLI commands. Use when building responsive flex containers, rows, columns, or alignment configurations. | |
| Followers Track follower growth, detect unfollows, and analyze engagement trends. Use when monitoring counts, spotting changes, or reviewing audience demographics. | |
| Fontpreview Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Fontpreview concepts, best practices, and implementation patterns. | |
| Gift Finder Reference tool for life — covers intro, quickstart, patterns and more. Quick lookup for Gift Finder concepts, best practices, and implementation patterns. | |
| Gitignore Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Gitignore concepts, best practices, and implementation patterns. | |
| Goal Setter Goal Setter — Goal Setter — achieve your goals step by step. Personal daily-use tool for tracking and organizing your life. Use when you need Goal Setter cap... | |
| Hmi Human-machine interface design tool | |
| Hotwallet Hotwallet reference tool. Use when working with hotwallet in blockchain contexts. | |
| Http Client Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for HTTP Client concepts, best practices, and implementation patterns. | |
| Hydration Tracker Track daily water intake, set hydration goals, and get drink reminders. Use when logging water, setting targets, or reviewing weekly intake trends. | |
| Idiom Dictionary 成语词典。成语查询、典故故事、成语接龙、成语猜谜、造句示例、分类浏览。Chinese idiom dictionary with stories, chain game, quiz. 成语、典故、国学。 | |
| Infra Wrapper Terragrunt is a flexible orchestration tool that allows Infrastructure as Code written in OpenTofu/T terraform-wrapper, go, aws, cli, developer-tools. | |
| Jwtdecode Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Jwtdecode concepts, best practices, and implementation patterns. | |
| License Picker Open source license reference — SPDX identifiers, permissive vs copyleft comparison, license compatibility matrix, patent clauses, and compliance scanning tools | |
| Lidar LiDAR technology reference — point cloud processing, scan types, coordinate systems, and applications. Use when working with LiDAR data, configuring scanners... | |
| Liquidity Monitor DeFi liquidity analysis reference — AMM mechanics, Uniswap V2/V3 math, Curve StableSwap, impermanent loss calculation, and MEV protection strategies | |
| Logscope Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Logscope concepts, best practices, and implementation patterns. | |
| Ltrace Ltrace reference tool. Use when working with ltrace in devtools contexts. | |
| Mathbox Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Mathbox concepts, best practices, and implementation patterns. | |
| Mealplan Plan meals with calorie tracking and shopping lists. Use when organizing weekly meals. | |
| Medication Reminder Track medications with dosing schedules and intake history. Use when managing prescriptions. | |
| Mev Analyze mev operations. Use when you need to understand mev mechanisms, evaluate protocol security, or reference on-chain concepts. | |
| Motor Motor specification and selection tool | |
| Nutrition Label Reference tool for life — covers intro, quickstart, patterns and more. Quick lookup for Nutrition Label concepts, best practices, and implementation patterns. | |
| Orm Builder Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for ORM Builder concepts, best practices, and implementation patterns. | |
| Payback Payback reference tool. Use when working with payback in finance contexts. | |
| Pension A focused personal finance tool built for Pension. Log entries, review trends, and export reports — all locally. | |
| Pet Care Reference tool for life — covers intro, quickstart, patterns and more. Quick lookup for Pet Care concepts, best practices, and implementation patterns. |
17,501–17,550 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.