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 |
|---|---|
| Algernon MCP sammyboi81/algernon Fan a goal out to cheap parallel LLM workers on your own key or a free local Ollama. Keep your mind. | |
| io.github.SamoraDC/tetrad samoradc/tetrad Quadruple consensus MCP server for code validation using Codex, Gemini, and Qwen | |
| FutureSense sams3595/futuresense-mcp Invoicing, CRM, accounting, payroll, booking and AI content tools for FutureSense apps. | |
| io.github.Samuelfmedeiros/arachne-mcp samuelfmedeiros/arachne-mcp Arachne MCP — scraping, browser, vision, OCR, RAG, Social Research, GitHub + VRT (56 tools). | |
| io.github.SamuelMoraesF/mcp-banco-inter samuelmoraesf/mcp-banco-inter Servidor MCP para integração com o Banco Inter (PJ). Consulte saldos e gerencie cobranças. | |
| io.github.SamuelMoraesF/mcp-nfse-nacional samuelmoraesf/mcp-nfse-nacional MCP Server para consulta de NFSe no portal nacional (nfse.gov.br) | |
| io.github.SamuelMoraesF/mcp-organizze samuelmoraesf/mcp-organizze MCP para integração com o gestor financeiro Organizze. Crie transações, consulte saldos e metas. | |
| io.github.Anil-matcha/muapi samuraigpt/muapi-claude-code Generate images, videos, and audio using 100+ AI models via muapi.ai. | |
| Agent Reputation samytouri/agent-hub Complaint registry for paid agent transactions - check a seller before you pay, or file your own. | |
| Agentic SSH sandbanks/agentic_ssh High-performance (Rust), token-efficient, and asynchronous SSH orchestrations for AI agents. | |
| SandBase sandbaseai/cli Connect MCP clients to 2,000+ AI models without managing provider API keys. | |
| SandboxAPI sandboxapi/sandboxapi-mcp Execute code in 8 languages (Python, JS, TS, Go, Java, C++, C, Bash) in gVisor sandboxes. | |
| io.github.sandcastlelabs/collimer-mcp sandcastlelabs/collimer-mcp Retired. Use Collimer's remote MCP server at https://app.collimer.com/mcp instead. | |
| AegisCore sandeep-hipparagi/aegis-core Deterministic zero-trust policy enclave and cryptographic WORM audit ledger for MCP tools. | |
| io.github.Sandeeprdy1729/timps-swarm sandeeprdy1729/timps-swarm 161 AI agents for code gen, health, AI/ML, infra, India-stack. One command. | |
| io.github.Sandip124/wisegit sandip124/wisegit Extracts decision intent from git history and protects intentional code from AI modification. | |
| io.github.sandoreclegane/inkvault sandoreclegane/inkvault Local-first AI memory: search your Claude Code, Codex, Claude desktop, Pieces and browser history. | |
| Project Context sandovalrr/project-context Safely manage repository-scoped issues across Linear, GitHub Issues, and Jira Cloud. | |
| io.github.sandraschi/godot-mcp sandraschi/godot-mcp Godot MCP server - Godot 4.x engine control via TCP bridge, STL/GLB/OBJ import, GPU particles, an... | |
| io.github.sandraschi/grandorgue-mcp sandraschi/grandorgue-mcp GrandOrgue pipe organ simulator MCP server - MIDI bridge, organ control, sample set management, m... | |
| io.github.sandraschi/leanforge-mcp sandraschi/leanforge-mcp Lean 4 theorem prover MCP: automated proof search, mathlib integration, job management | |
| io.github.sandraschi/mixx-dj-mcp sandraschi/mixx-dj-mcp FastMCP server for Mixxx DJ software control via OSC protocol | |
| io.github.sandraschi/overte-mcp sandraschi/overte-mcp Overte (open-source Vircadia-lineage metaverse) Model Context Protocol server for domain administ... | |
| io.github.sandraschi/qcad-mcp sandraschi/qcad-mcp QCAD 2D CAD automation: DXF/DWG floor plans to SVG and STL, via MCP tools and REST | |
| io.github.sandraschi/resonite-mcp sandraschi/resonite-mcp Resonite social VR platform MCP server for natural language control of avatars, worlds, and Proto... | |
| io.github.sandraschi/yahboom-mcp sandraschi/yahboom-mcp SOTA 2026 Yahboom Raspbot v2 ROS 2 MCP Server | |
| io.github.sandsower/kronan-mcp sandsower/kronan-mcp MCP server for the Krónan grocery store API (Iceland) | |
| io.github.sandsower/vedurstofa-mcp sandsower/vedurstofa-mcp MCP server for Icelandic weather, forecasts, warnings, and earthquakes from vedur.is. | |
| network.wellknown/wellknown sanemavcil/wellknown-mcp Live index of AI agents, MCP servers and tools with observed liveness and capability search. | |
| AdversaryGate sanflow10/adversary-gate Fail-closed merge gate an agent calls before saying done: MERGE, BLOCK or INCONCLUSIVE. | |
| amu-pgvector sangaraju1988/amu-pgvector Lineage-gated agent memory tools on Postgres + pgvector, enforced by row-level security. | |
| io.github.sani-savaliya/agentify sani-savaliya/agentify Turn any OpenAPI/Swagger spec into an MCP server - every API operation becomes an agent tool. | |
| Sanity sanity-io/agent-toolkit Direct access to your Sanity projects (content, datasets, releases, schemas) and agent rules | |
| io.github.sanjana-pier39/negotiate-mcp sanjana-pier39/negotiate-mcp Negotiate prices at any negotiate.v1 store. AI shopper tools for Claude. | |
| Kafka Sentinel sanjay-amu/kafka-sentinel-mcp Read-only Kafka observability MCP server: cluster health, consumer lag, and replay-readiness. | |
| Kumbaa sanjaybhagia/kumbaa-mcp A private family archive: family tree, life stories, photos and albums, for your family only. | |
| Trvlrr sanjaybhagia/trvlrr-mcp Your travel history and upcoming trips: flights, stays, activities, places, photos and stats. | |
| Worthbase sanjaybhagia/worthbase-mcp Household net worth and portfolio tracker your AI keeps: priced daily, previewed and undoable. | |
| OpenShift MCP Server sanjaypsachdev/mcp-server-openshift OpenShift/Kubernetes cluster management via the oc CLI for MCP clients | |
| io.github.sanjaysgk/can-immune sanjaysgk/can-immune-mcp Query CAN-IMMUNE: cancer neoantigen mutations, peptides, cell lines, MHC-I binding. Read-only. | |
| io.github.sanjeevkkansal/solfleet sanjeevkkansal/solfleet Agent-safe fleet management for independent Solana validators and RPC nodes | |
| io.github.SanjhaiPrakash18/readdit-later sanjhaiprakash18/readdit-later-mcp Search, organize, and chat with your saved Reddit posts from Claude, Cursor, and any MCP client. | |
| GAUNTLEX sanjoy1234/gauntlex Concurrent Builder + Breaker agents generate code and adversarial tests at once, gated in CI. | |
| useSignal sanket-naik/usesignal-claude-plugin QR codes, JSON diff/format, hashes, JWT, cron, timestamps, placeholders, flowcharts, forms, regex. | |
| io.github.Sanoy24/safe-fetch sanoy24/safe-fetch-mcp-server MCP server for fetching URLs, safe against SSRF, DNS rebinding, and redirect-to-internal attacks. | |
| BeVigil OSINT santhosh-005/bevigil-mcp-server Discover mobile app attack surfaces via BeVigil OSINT — hosts, subdomains, URLs, and more. | |
| io.github.santinohicke/uca-mcp santinohicke/uca-mcp MCP no oficial para estudiantes de la UCA: EVA y SIU Guaraní (materias, notas, horarios, exámenes). | |
| tubekit santiriera626/tubekit-mcp Compliance-aware MCP server for YouTube publishing, analytics and creator insights. | |
| Santismm Knowledge — Harness Engineering, Agentic AI & Governance santismm/santismm-knowledge-mcp Query core AI knowledge, essays, executable Labs, Homeric data and epistemic claims. | |
| veddata sanzineo/veddata MCP server for AI agents: discover a web page's data sources and drive the page to reach them. |
16,401–16,450 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.