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 |
|---|---|
| Silent Directive Tools silentdirectivellc-hub/silentdirective-mcp Free tools: 2026 API shutdown scanner, small-business website auditor, photo resale estimator. | |
| io.github.SiliconAINetworks/silicon-transfer-mcp-server siliconainetworks/silicon-transfer-mcp-server FTP/SFTP/FTPS MCP server with transfer proofs - every upload returns a checksum verdict. | |
| Ordkort silicq/ordkort Flashcard decks with pictures and card designs for a free vocabulary site in 60 languages. | |
| Quality QR silly-geese/quality-qr-mcp Create and manage trackable QR codes with scan tracking, analytics, and dynamic URL updates. | |
| AI Readiness Kit silverbackmarketing/ai-readiness Generate 18 AI readiness files (llms.txt, ai.txt, RAG indexes, schema) for any website. | |
| TrimScript silvernine/trimscript Edit video by editing the transcript. Runs locally; agent edits arrive as suggestions you approve. | |
| Silica simaanc/silica-eda RTL and FPGA tools: lint, simulate, formal, synthesize, place and route, program a board. | |
| Memory Engine MCP simoneb79/memory-engine-mcp Local-first graph memory for AI assistants with SQLite, semantic search, and MCP tools. | |
| Kwork simonether/kwork-mcp Account-bound, typed and durable stdio MCP gateway for the Kwork freelance marketplace | |
| ESG Hub MCP Server simonmak-ascent/esg-hub ESG knowledge base for AI agents: hybrid search, glossary, frameworks, industries, graph traversal. | |
| Fair Value MCP Server simonmak-ascent/fair-value Valuation MCP: DCF/NAV/CCA, WACC, derivatives, credit risk, fixed income, structured products. | |
| HKEx Filings simonmak-ascent/hkex-filing-scraper Live HKEx (Hong Kong Stock Exchange) regulatory filings for AI agents. | |
| Intangible Asset Valuation MCP Server simonmak-ascent/intangible-valuation Intangible asset valuation: 14 tools, 124+ formulas for IP, technology, goodwill, PPA, impairment. | |
| com.ascent-partners/opencode-workbench simonmak-ascent/opencode-workbench Provision an OpenCode workbench and MCP stack on any Linux box, local or over SSH. | |
| Startup Valuation MCP Server simonmak-ascent/startup-valuation Startup valuation for AI agents: 14 tools, 80+ pre-revenue formulas. | |
| SeekLink simonsysun/seeklink Local read-only semantic search for Markdown vaults through MCP. | |
| Simple Commenter simple-commenter/mcp-server Search, export, triage, and manage authorized website and asset feedback in Simple Commenter. | |
| Simplepush simplepush/simplepush-mcp Send tasks and notifications to people's phones. Answers build a queryable knowledge base. | |
| io.github.simplifier-ag/simplifier-mcp simplifier-ag/simplifier-mcp MCP Server for Simplifier - manage Connectors, BusinessObjects, Datatypes and logins | |
| Find Car Parking simplyguest/find-car-parking-mcp SimplyGuest Car Parking helps people find available parking spaces. | |
| io.github.SimplyLiz/ckb simplyliz/codemcp Code intelligence MCP server — 80+ tools for navigation, impact analysis, and architecture | |
| io.github.SimplyMinimal/fleet-mcp simplyminimal/fleet-mcp An MCP server that provides tools for managing and monitoring your Fleet Device Management instance. | |
| Agent Intern sinantufekci/agent-intern Delegate from Claude Code to Gemini, Codex, Copilot, Cursor and opencode CLIs as sub-agents. | |
| io.github.sind00/flippa-mcp sind00/flippa-mcp Search, analyze, and evaluate online businesses for sale on Flippa.com marketplace. | |
| Uniscript — AI Carousel Maker sindebobel123/uniscript-mcp Finished TikTok/Instagram carousels from a topic, photos or video. Edit any layer, export PSD/SVG. | |
| Vivado Red MCP sinemortal/vivado-red-mcp Drive AMD Vivado from AI assistants, with Red Pitaya STEMlab 125-14 build and deploy flows. | |
| Omnicost sinequix/omnicost-mcp Construction unit prices with source and date for Spain, the US and the EU. OAuth or API key. | |
| io.github.sinewaveai/agent-security-scanner-mcp sinewaveai/agent-security-scanner-mcp Security layer for AI agents: blocks prompt injection, detects fake packages, scans vulnerabilities. | |
| SingIt x402 singitai/singit-mcp Web search, page reading, prices and market data for agents, billed to your SingIt API key in USDC. | |
| io.github.singleflo/evolution-api-mcp singleflo/evolution-api-mcp Operate one Evolution API (WhatsApp) instance: chats, history, sending, groups, settings. | |
| io.github.singleflo/odoo-assistant singleflo/odoo-assistant-mcp Odoo virtual employee via MCP: query, create, modify records, workflows, PDFs, and activities. | |
| io.github.Singlishman/kerdos-x402-mcp singlishman/kerdos-x402-mcp Crypto market intelligence MCP — pay-per-tool-call in USDC on Base via the x402 protocol. | |
| io.github.singularityjason/lightning-memory singularityjason/lightning-memory Decentralized agent memory for the Lightning economy. Nostr identity, L402 payments. | |
| io.github.sinhaKAN-ra/anumana sinhakan-ra/anumana Predict query cost, explain the plan, and rewrite it before you run it — 12 DB engines. | |
| DomainROC Domain Advisor sinianchu9/domainroc-mcp-server Read-only domain availability and registrar price research via a public remote MCP server. | |
| fleet sinolion/fleet Every machine you have, for your agent: free GPUs, jobs, served models, software, over SSH. | |
| JVM Source Lens sintexer/jvm-source-lens Gradle-accurate JVM classpath; fetch Java source, signatures, and class structure for agents. | |
| Deus Witness sipkigroup/witness MCP proxy: holds risky tool calls for passkey approval; signed receipts you can check offline. | |
| io.github.sipyourdrink-ltd/bernstein-mcp sipyourdrink-ltd/bernstein-mcp Verifies Bernstein run receipts and hash chains; lists the shipped presets and adapters. Read-only. | |
| io.github.siriuslattice/evmcp siriuslattice/evmcp Multi-chain EVM blockchain data with companion smart contracts | |
| OAHelper sirjansingh/oahelper-mcp Your OAHelper Pro account: OA sets, MCQ answers, solutions and interview experiences, offline | |
| io.github.sirlordt/vscode-terminal-mcp sirlordt/vscode-terminal-mcp Execute commands in visible VSCode terminal tabs with output capture and session reuse. | |
| Google AdSense sirmacke/adsense-mcp Read AdSense Management API v2 accounts, inventory, payments, policy, and reports through MCP. | |
| io.github.sisense/sisense-mcp-server sisense/sisense-mcp-server MCP server leveraging Sisense Intelligence for actionable insights and analytics. | |
| io.github.Sisuthros/claude-amplifier sisuthros/claude-amplifier Persistent memory + decision tracking for Claude across sessions. Local SQLite, no cloud. | |
| UnlimitedTTS sisygoboom/unlimitedtts-agents Quote-first, non-custodial x402 text-to-speech with spend policy, MP3 artifacts, and receipts. | |
| SiteData MCP sitedata-dev/sitedata-mcp Website traffic, DR growth and payment rankings; manage website and keyword favorites via OAuth. | |
| io.siteglass/mcp siteglassio/siteglass-mcp Archive any URL to a shareable rrweb/pdf/png snapshot + agent-driven web QA (scan, run E2E flows). | |
| ai.sitepulsar/mcp sitepulsar/mcp-server SitePulsar AEO audits: fetch FIND/READ/USE agent-readiness scores for any website. | |
| SiteVerdict — Website Audit Tools siteverdict/siteverdict-mcp Website audits for AI agents: GDPR consent, speed, WCAG, SPF/DMARC and AI-search readiness. |
16,951–17,000 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.