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.
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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.
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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 |
|---|---|
| MCP Ecommerce Directory and matchmaker of MCP servers for e-commerce, with guides and a glossary. Read-only. | |
| CostPilot Hosted MCP server for AWS cloud spend: service breakdowns, anomalies, savings and forecasts. | |
| PGAuditor Hosted MCP server for PostgreSQL diagnostics: slow queries, missing indexes, connection pressure. | |
| MCP LeadFlow Build, edit, analyze, and manage lead funnels from any MCP-compatible AI assistant. | |
| MCP Locker One private endpoint for your MCP servers and skills. Free, Pro & Teams. | |
| MCPFax Agent Continuity Resume the work, not the conversation. A checkpoint by one model is resumable by another. | |
| MCPFax Reliability Before you pay an endpoint you cannot vouch for: credit grade, drift and preflight. | |
| Bill Of Materials Integrity Pure, bounded analysis of an explicit bill-of-materials graph: validates structure, finds missing... | |
| Cache Key Explosion Auditor Audits a sample of HTTP request URLs against explicit, documented cache-key standardization rules... | |
| Cheapest Grocery Basket Where to buy a whole grocery list today: local prices, per-unit and cross-store comparison. | |
| CSV Import Rehearsal Simulate a CSV import against a supplied typed column contract and return exact accepted rows, re... | |
| MCPFax Dev Package Intelligence Is this dependency current, licensed, deprecated, or already carrying a CVE? | |
| MCPFax Feed Reader What a source published since you last looked, from any RSS, RDF or Atom feed. | |
| MCPFax Food Facts Can this person eat this? Allergens, additives and nutrition from a barcode. | |
| Invoice Duplicate Recovery Computes exact overpayments across caller-supplied approved invoices, payments, and recorded cred... | |
| Invoice Purchase Order Matcher Mechanically reconcile supplied purchase-order lines, invoice lines and goods receipts under expl... | |
| Localization Resource Integrity Checks the structural integrity of translated resource dictionaries against a source dictionary y... | |
| MCPFax Macro & Market Intelligence Prices and rates that state when they were observed, so you know what you are trusting. | |
| Merchant Catalog Acceptance Deterministic acceptance report for a supplied product catalog: validates price/currency/availabi... | |
| MCPFax On-Chain Toolkit The on-chain facts you need in the seconds before you transact. | |
| MCPFax Public-Data Utility API One public fact when you have no API key: where, what time, what rate. 31 lookups. | |
| Schema Change Gate Replay supplied records against old and new bounded JSON Schema draft-07 contracts. Receive exact... | |
| MCPFax URL Intelligence Where a link really goes, what the server says about itself, and what pages a site publishes. | |
| Usage Bill Reconstructor Recomputes a usage-based bill from a customer-supplied tariff (graduated per-meter tiers, optiona... | |
| MCPFax Vehicle Diagnostics A fault code, a VIN, or a recall — answered from public NHTSA and standards data. | |
| MCPFax Web Extract Read any web page as clean text for a prompt, or list every link on it. | |
| Webhook Signature Fixture Lab Generates deterministic webhook HMAC-SHA256 fixtures and optionally verifies a supplied signature... | |
| MCPFax Bazaar Intelligence Seller ranks, trends and demand in the x402 economy. USDC read off Base, not self-reported. | |
| SEO Analytics & Insights — Google Search Console MCP Search Console SEO analytics: rankings, clicks, CTR, striking-distance insights, charts, sitemaps. | |
| MCPSkillHub Search 49k MCP servers with measured context-token cost, security signals and install snippets. | |
| MCP Toplist Search 100,000+ MCP servers ranked by real adoption data to find the right one for any task. | |
| MCPVillage Build & edit your own website by talking to your LLM: pages, forms, SEO, analytics. Free to start. | |
| mcpweave Korea-native MCP gateway: Korean commerce, payments, messaging, gov & finance APIs for AI agents. | |
| MD Atlas Search international medical-device companies, people, devices, certificates, documents & UDI codes. | |
| Meadley Bros. property-picked mailing lists Count and buy mailing lists of homes that fit a home-service trade, by measured property signals. | |
| Meandr MCP gateway and cloud hosting for MCP servers, agents and apps like RAG, managed from your agent. | |
| Measured Size Bra sizes from measurements, in each brand's own labels, with the confidence behind each. | |
| com.measuretechpro/agent-door The full CRM for contractors, asked directly: crew pricing, knowledge base, forum, roadmap. | |
| MechanoFab Manufacturing capability graph for AI agents: materials, processes, tolerances, and instant quotes. | |
| Dedemed ShopMCP Öffentlicher Read-only-MCP: Med-Dent24 Produktkatalog. Kein Login, keine Kundendaten. | |
| MedBillAnalyzer Compares a medical bill with the insurer's Explanation of Benefits and lists where they disagree. | |
| com.medcontra/site Medcontra: the site's own MCP server — dataset; every answer cites the site. | |
| Media List Find journalists, editors, producers, podcast hosts and creators to pitch, by beat and location. | |
| Median books Read-only access to a Median customer's ledger, financial reports and transactions. OAuth sign-in. | |
| MEDIAPRONET Search the MEDIAPRONET directory of websites and tools. Read-only, no API key. | |
| com.medicareplancomparison/site Medicare Plan Comparison: the site's own MCP server — dataset, enquiry (enquiry = a human... | |
| com.medigami/chatgpt Medigami patient tools: rates, markups, denial codes, deadlines, overturn rates, procedure codes | |
| com.medigami/mcp Medigami: medical bill error scan, denial decoding, appeal deadlines, hospital price lookup | |
| com.medspacostchecker/site Med Spa Cost Checker: the site's own MCP server — dataset, enquiry (enquiry = a human handoff,... | |
| Medusa Work with your Medusa Cloud projects' data and APIs, and search the Medusa documentation. |
32,951–33,000 of 50,909
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.