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 |
|---|---|
| Container Desktop Podman Desktop is the best free and open source tool to work with Containers and Kubernetes for deve podman desktop, typescript, container, containers. | |
| Coppa COPPA compliance reference — children's online privacy, parental consent, data collection rules, FTC enforcement. Use when building apps for children under 1... | |
| Cpu Monitor CPU load, per-core usage, and rank top resource-consuming processes. Use when checking temperatures, ranking processes, tracking load. | |
| Crawler Web crawling and scraping reference — robots.txt protocol, Scrapy framework, anti-bot detection, headless browsers, and legal considerations | |
| Create Project scaffolding reference — boilerplate generation, directory structures, template engines, and init patterns. Use when bootstrapping new projects or gen... | |
| Credential Tester Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Credential Tester concepts, best practices, and implementation pa... | |
| Crypt crypt | |
| Ctxkeeper Manage conversation context with saving, loading, and pruning tools. Use when preserving context, loading sessions, pruning old history. | |
| Curl curl reference tool | |
| Database Design 数据库设计助手。表设计、范式化、索引策略、迁移脚本、测试数据、ER图描述。Database designer with normalization, indexing, migration, seeding, ER diagrams. 数据库、MySQL。 | |
| Dcs Distributed control system manager | |
| Deadlink Scan websites and files for broken links with HTTP status details. Use when auditing links, finding broken URLs, validating references. | |
| Deploy Tool The PHP deployment tool with support for popular frameworks out of the box deploy-tool, php, deploy, deployment, php, provision. | |
| Devops Scripts Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Devops Scripts concepts, best practices, and implementation patte... | |
| Dice Roll dice, track scores, and manage game stats for tabletop gaming. Use when rolling dice, tracking scores, ranking players, reviewing history. | |
| Diff diff reference tool | |
| Diskview Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Diskview concepts, best practices, and implementation patterns. | |
| Dividend Lightweight Dividend tracker. Add entries, view stats, search history, and export in multiple formats. | |
| Draw Create SVG diagrams with shapes, layers, and multi-format export. Use when generating graphics, building diagrams, arranging layouts. | |
| Drawdown Drawdown analysis reference — maximum drawdown, peak-to-trough, recovery time, risk metrics. Use when evaluating portfolio risk, stress-testing strategies, o... | |
| Dream Interpreter Reference tool for life — covers intro, guide, tips and more. Quick lookup for Dream Interpreter concepts, best practices, and implementation patterns. | |
| Eam Enterprise asset management tracker | |
| Embed embed | |
| Encode Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Encode concepts, best practices, and implementation patterns. | |
| Encrypt Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Encrypt concepts, best practices, and implementation patterns. | |
| Env Config 环境变量配置管理。.env模板生成(Node/Python/Go/Docker)、验证、环境变量生成、多环境合并、加密建议、文档化。Environment variable config manager with templates, validation, generation, multi-env merge... | |
| Epoch Convert Unix timestamps, compare epochs, and do time arithmetic. Use when converting dates, debugging timestamps, or checking timezone offsets. | |
| Etf Analyze ETF holdings, compare fund metrics, and review sector allocation data. Use when screening ETFs, comparing ratios, or tracking allocations. | |
| Fertigation Fertigation reference — injecting fertilizers through irrigation systems, nutrient scheduling, injection methods, and crop-specific programs. Use when design... | |
| Finder Find files by name, size, date, and type with deduplication. Use when searching filesystems. | |
| Firewall Manager Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Firewall Manager concepts, best practices, and implementation pat... | |
| First Aid First aid reference guide with emergency procedures and kit checklists. Use when looking up first aid instructions. | |
| Flashcard Spaced repetition study tool with deck management. Use when you need flashcard. | |
| Flip flip reference tool | |
| Furniture Track home furniture, schedule maintenance, and manage warranty details. Use when cataloging furniture, scheduling cleaning, or tracking warranty expiry dates. | |
| Gasless Analyze gasless operations. Use when you need to understand gasless mechanisms, evaluate protocol security, or reference on-chain concepts. | |
| Gdb Gdb reference tool. Use when working with gdb in devtools contexts. | |
| Gdpr Audit GDPR compliance, generate privacy policies, and document data flows. Use when auditing practices, drafting policies, or checking consent flows. | |
| Gear Use when calculating gear ratios, converting RPM between shafts, computing torque output, analyzing drivetrain configurations, or selecting motors for mechan... | |
| Generate Generate random test data including text, numbers, UUIDs, and structured formats. Use when creating mock datasets, sample records, or randomized test inputs. | |
| Generator Create placeholder data, test fixtures, and sample datasets for dev work. Use when generating mocks, building fixtures, or scaffolding content templates. | |
| Gitbuddy Extend Git with utilities for changelogs, branch cleanup, and repo stats. Use when generating changelogs, squashing branches, or viewing repo statistics. | |
| Golang Build, test, lint, and format Go projects with integrated dev tooling. Use when compiling binaries, running tests, linting code, or formatting files. | |
| Gripper Robot gripper reference — jaw types, force calculation, pneumatic vs electric, and end-effector selection. Use when designing gripping systems, selecting act... | |
| Halving Use when checking next Bitcoin halving countdown, reviewing historical halving price impacts, analyzing mining economics, or studying BTC 4-year market cycles. | |
| Hashgen Hash files and strings, verify checksums, and run integrity checks fast. Use when generating SHA hashes, verifying files, or comparing digest values. | |
| Heartrate Log heart rate readings, track BPM trends, and set cardiovascular goals. Use when recording heart rate, tracking trends, or charting weekly averages. | |
| Heikinashi Heikinashi reference tool. Use when working with heikinashi in finance contexts. | |
| Home Organizer 家居收纳整理。断舍离、收纳方案、空间规划、季节整理、搬家清单、极简生活。Home organization with decluttering, storage. 收纳、整理、断舍离。 | |
| Hr Toolkit HR工具包。招聘流程、入职办理、离职管理、制度规范、员工手册、HR模板库。HR toolkit with recruitment, onboarding, offboarding, policy, handbook. |
17,601–17,650 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.