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 |
|---|---|
| Portcheck Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Portcheck concepts, best practices, and implementation patterns. | |
| Portfolio Manage investment portfolios. Use when adding positions, analyzing allocation, calculating returns, or generating rebalance advice. | |
| Precedent Legal precedent reference — stare decisis, case law hierarchy, distinguishing, overruling, persuasive authority. Use when researching binding case law, analy... | |
| Quant Finance Reference tool for devtools — covers intro, formulas, regulations and more. Quick lookup for Quant Finance concepts, best practices, and implementation patte... | |
| Quickfind Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Quickfind concepts, best practices, and implementation patterns. | |
| Rag Evaluator Python SDK for Agent AI Observability, Monitoring and Evaluation Framework. Includes features like a ragaai catalyst, python, agentic-ai. | |
| Repo Bundler Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Repo Bundler concepts, best practices, and implementation patterns. | |
| Roadmap Roadmap - command-line tool for everyday use Use when you need roadmap. | |
| Secret Encrypt Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Secret Encrypt concepts, best practices, and implementation patte... | |
| Silo Grain silo reference — storage types, aeration, moisture management, fumigation, and safe handling of bulk grain. Use when designing grain storage, managing... | |
| Site Inspector Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Site Inspector concepts, best practices, and implementation patte... | |
| Spc spc reference tool | |
| Spell Log anything fast and find it later with search and export. Use when running lookups, checking entries, converting formats, generating summaries. | |
| Split Data splitting techniques and strategies reference — partitioning datasets, string splitting, file splitting, and ML train/test splits. Use when dividing dat... | |
| Staking Analyze staking operations. Use when you need to understand staking mechanisms, evaluate protocol security, or reference on-chain concepts. | |
| Story Draft, edit, and schedule creative stories with content optimization. Use when drafting chapters, editing narratives, optimizing readability, scheduling posts. | |
| Succession Plan Design succession plans with role mapping and transition roadmaps. Use when adding positions, listing candidates, prioritizing paths, planning transfers. | |
| System Hardener Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for System Hardener concepts, best practices, and implementation patt... | |
| Tagout Tagout safety compliance tracker. Use when json tagout tasks, csv tagout tasks, checking tagout status. | |
| Tar Create, extract, list, and compress tar archives with format support. Use when scanning contents, monitoring sizes, reporting results, alerting corruption. | |
| Tariff International trade tariff reference — HS codes, duty rates, trade agreements, customs valuation, and tariff classification. Use when classifying goods for i... | |
| Tendermint Tendermint reference tool. Use when working with tendermint in blockchain contexts. | |
| Tesla Commander Reference tool for life — covers intro, quickstart, patterns and more. Quick lookup for Tesla Commander concepts, best practices, and implementation patterns. | |
| Todo Planner Organize todos with priorities, deadlines, and weekly views. Use when adding tasks, planning agendas, tracking progress, reviewing overdue items. | |
| Tripwire Tripwire host-based IDS reference. Cryptographic key setup, database initialization, integrity checks, policy rules with severity levels, twcfg.txt configura... | |
| Turbine Turbine performance calculator | |
| Video Fetcher Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Video Fetcher concepts, best practices, and implementation patterns. | |
| Vrf Analyze vrf operations. Use when you need to understand vrf mechanisms, evaluate protocol security, or reference on-chain concepts. | |
| Wakatime Lite Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Wakatime Lite concepts, best practices, and implementation patterns. | |
| Watch watch | |
| Watermark Watermark reference — visible and invisible watermarking, steganography, copyright protection, detection. Use when implementing watermarks for images, docume... | |
| Web Profiler Bundle Profile HTTP requests with timing, memory, and query breakdowns. Use when debugging slow routes, analyzing queries, inspecting middleware, or optimizing. | |
| Whitepaper Whitepaper reference tool. Use when working with whitepaper in blockchain contexts. | |
| Zksync Zksync reference tool. Use when working with zksync in blockchain contexts. | |
| Align Data and text alignment reference — sequence alignment, text formatting, memory alignment, and CSS/layout alignment. Use when aligning sequences, formatting... | |
| Ansible Ui Modern UI and powerful API for Ansible, Terraform/OpenTofu/Terragrunt, PowerShell and other DevOps t ansible-ui, go, ansible, awx, ci, cicd. | |
| Arrow Apache Arrow in-memory columnar format reference. Zero-copy data exchange, columnar memory layout with validity bitmaps, pyarrow Table/RecordBatch/compute, A... | |
| Assert Assertion patterns reference — guard clauses, preconditions, invariants, and contract programming. Use when writing defensive code, validating inputs, or imp... | |
| Auditd Linux Audit Framework reference. auditctl rules for file watches and syscall auditing, auditd.conf configuration, ausearch log queries, aureport summaries, a... | |
| Beat Track, analyze, and manage music and audio files from the command line. Use when organizing playlists, converting formats, or analyzing metadata. | |
| Bigdata Split large files, run parallel processing, and stream batch analysis. Use when sampling datasets, aggregating logs, or transforming bulk data. | |
| Blog Manage blog posts with drafts, scheduling, and SEO optimization. Use when creating articles, optimizing metadata, or scheduling publication dates. | |
| Boiler Boiler efficiency and sizing tool | |
| Bollinger Bollinger reference tool. Use when working with bollinger in finance contexts. | |
| Business Plan Cn 商业计划书生成器。完整BP、精益画布、SWOT分析、财务预测、电梯演讲、市场分析。Business plan generator with lean canvas, SWOT, financial projections, elevator pitch, market analysis. 商业计划、创业、BP。 | |
| Cert Manager Reference tool for devtools — covers intro, quickstart, patterns and more. Quick lookup for Cert Manager concepts, best practices, and implementation patterns. | |
| Code Searcher Search codebases for patterns, symbols, and TODOs. Use when navigating large codebases. | |
| Colorlab Convert colors and generate palettes with WCAG contrast checks. Use when building palettes, converting hex/RGB, checking accessibility. | |
| Comment Manage Comment data right from your terminal. Use when you need comment. | |
| Consolidation Freight consolidation reference — LCL groupage, milk runs, cross-docking, and shipment merging strategies. Use when optimizing shipping costs, planning conso... |
17,551–17,600 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.