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
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 |
|---|---|
| Gws Gmail Send Gmail: Send an email. | |
| Gws Gmail Triage Gmail: Show unread inbox summary (sender, subject, date). | |
| Gws Gmail Watch Gmail: Watch for new emails and stream them as NDJSON. | |
| Gws Groupssettings Manage Google Groups settings. | |
| Gws Keep Manage Google Keep notes. | |
| Gws Licensing Google Workspace Enterprise License Manager: Manage product licenses. | |
| Gws Meet Manage Google Meet conferences. | |
| Gws Modelarmor Google Model Armor: Filter user-generated content for safety. | |
| Gws Modelarmor Create Template Google Model Armor: Create a new Model Armor template. | |
| Gws Modelarmor Sanitize Prompt Google Model Armor: Sanitize a user prompt through a Model Armor template. | |
| Gws Modelarmor Sanitize Response Google Model Armor: Sanitize a model response through a Model Armor template. | |
| Gws People Google People: Manage contacts and profiles. | |
| Gws Reseller Google Workspace Reseller: Manage Workspace subscriptions. | |
| Gws Script Manage Google Apps Script projects. | |
| Gws Script Push Google Apps Script: Upload local files to an Apps Script project. | |
| Gws Shared gws CLI: Shared patterns for authentication, global flags, and output formatting. | |
| Gws Sheets Google Sheets: Read and write spreadsheets. | |
| Gws Sheets Append Google Sheets: Append a row to a spreadsheet. | |
| Gws Sheets Read Google Sheets: Read values from a spreadsheet. | |
| Gws Slides Google Slides: Read and write presentations. | |
| Gws Tasks Google Tasks: Manage task lists and tasks. | |
| Gws Workflow Google Workflow: Cross-service productivity workflows. | |
| Gws Workflow Email To Task Google Workflow: Convert a Gmail message into a Google Tasks entry. | |
| Gws Workflow File Announce Google Workflow: Announce a Drive file in a Chat space. | |
| Gws Workflow Meeting Prep Google Workflow: Prepare for your next meeting: agenda, attendees, and linked docs. | |
| Gws Workflow Standup Report Google Workflow: Today's meetings + open tasks as a standup summary. | |
| Gws Workflow Weekly Digest Google Workflow: Weekly summary: this week's meetings + unread email count. | |
| Persona Content Creator Create, organize, and distribute content across Workspace. | |
| Persona Customer Support Manage customer support — track tickets, respond, escalate issues. | |
| Persona Event Coordinator Plan and manage events — scheduling, invitations, and logistics. | |
| Persona Exec Assistant Manage an executive's schedule, inbox, and communications. | |
| Persona Hr Coordinator Handle HR workflows — onboarding, announcements, and employee comms. | |
| Persona It Admin Administer IT — monitor security and configure Workspace. | |
| Persona Project Manager Coordinate projects — track tasks, schedule meetings, and share docs. | |
| Persona Researcher Organize research — manage references, notes, and collaboration. | |
| Persona Sales Ops Manage sales workflows — track deals, schedule calls, client comms. | |
| Persona Team Lead Lead a team — run standups, coordinate tasks, and communicate. | |
| Recipe Backup Sheet As Csv Export a Google Sheets spreadsheet as a CSV file for local backup or processing. | |
| Recipe Batch Invite To Event Add a list of attendees to an existing Google Calendar event and send notifications. | |
| Recipe Block Focus Time Create recurring focus time blocks on Google Calendar to protect deep work hours. | |
| Recipe Bulk Download Folder List and download all files from a Google Drive folder. | |
| Recipe Collect Form Responses Retrieve and review responses from a Google Form. | |
| Recipe Compare Sheet Tabs Read data from two tabs in a Google Sheet to compare and identify differences. | |
| Recipe Copy Sheet For New Month Duplicate a Google Sheets template tab for a new month of tracking. | |
| Recipe Create Classroom Course Create a Google Classroom course and invite students. | |
| Recipe Create Doc From Template Copy a Google Docs template, fill in content, and share with collaborators. | |
| Recipe Create Events From Sheet Read event data from a Google Sheets spreadsheet and create Google Calendar entries for each row. | |
| Recipe Create Expense Tracker Set up a Google Sheets spreadsheet for tracking expenses with headers and initial entries. | |
| Recipe Create Feedback Form Create a Google Form for feedback and share it via Gmail. | |
| Recipe Create Gmail Filter Create a Gmail filter to automatically label, star, or categorize incoming messages. |
33,501–33,550 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.