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 |
|---|---|
| Protestos SP mcp-dir/protestos_sp-mcp Existence and details of protests for people and companies in São Paulo state registry offices. Plat | |
| TOTVS Protheus mcp-dir/protheus-mcp TOTVS Protheus ERP for AI: stock, sales, orders, customers and MRP. Read-only, official API. | |
| Consulta de Radar (PSIE/Inmetro) mcp-dir/psie-mcp Look up the metrological status of a city's speed cameras and breathalyzers in Inmetro's official re | |
| QI SCD MCP mcp-dir/qiscd-mcp Connect your QI SCD account to AI via Brazil's Open Finance: balances, statements, cards, investment | |
| Querido Diário (municipal) mcp-dir/querido_diario-mcp Searches MUNICIPAL official gazettes from thousands of city halls (Querido Diário / Open Knowledge B | |
| RD Station mcp-dir/rdstation-mcp RD Station Marketing, contacts/leads (get, upsert, funnel), conversion events and webhooks via the o | |
| Reajuste de Aluguel mcp-dir/reajuste-de-aluguel-mcp Rent adjustment for AI: apply the contract index (IGP-M, IPCA, INPC) to the current rent and get the | |
| Recall mcp-dir/recall-mcp Recall (recall.it) — your AI knowledge base / 'second brain'. Via the official API: semantic search | |
| RecargaPay MCP mcp-dir/recargapay-mcp Connect your RecargaPay account to AI via Brazil's Open Finance: balances, statements, cards, invest | |
| Receita Federal: Agenda Tributária mcp-dir/receita_federal_agenda_tribut-mcp Receita Federal: Agenda Tributária, official-source lookup. Platform-hosted, pay per query with prep | |
| Receita Federal: Cafir mcp-dir/receita_federal_cafir-mcp Receita Federal: Cafir, official-source lookup. Platform-hosted, pay per query with prepaid credit. | |
| Receita Federal: Comprovante de Pagamento mcp-dir/receita_federal_comprovante-mcp Receita Federal: Comprovante de Pagamento, official-source lookup. Platform-hosted, pay per query wi | |
| Receita Federal: CTe mcp-dir/receita_federal_cte-mcp Receita Federal: CTe, official-source lookup. Platform-hosted, pay per query with prepaid credit. | |
| Receita Federal: IRPF mcp-dir/receita_federal_irpf-mcp Receita Federal: IRPF, official-source lookup. Platform-hosted, pay per query with prepaid credit. | |
| Receita Federal: Simples (Listagem de Períodos para Emissão de DAS) mcp-dir/receita_federal_listar_das-mcp Receita Federal: Simples (Listagem de Períodos para Issuance de DAS), official-source lookup. Platfo | |
| Receita Federal: NFE mcp-dir/receita_federal_nfe-mcp Receita Federal: NFE, official-source lookup. Platform-hosted, pay per query with prepaid credit. | |
| Receita Federal NFS-e: Notas Emitida (Detalhes) mcp-dir/receita_federal_nfse_emit_det-mcp Receita Federal NFS-e: Notas Emitida (Detalhes), official-source lookup. Platform-hosted, pay per qu | |
| Receita Federal NFS-e: Notas Emitidas mcp-dir/receita_federal_nfse_emitidas-mcp Receita Federal NFS-e: Notas Emitidas, official-source lookup. Platform-hosted, pay per query with p | |
| Receita Federal NFS-e: Notas Recebida (Detalhes) mcp-dir/receita_federal_nfse_rec_det-mcp Receita Federal NFS-e: Notas Recebida (Detalhes), official-source lookup. Platform-hosted, pay per q | |
| Receita Federal NFS-e: Notas Recebidas mcp-dir/receita_federal_nfse_recebidas-mcp Receita Federal NFS-e: Notas Recebidas, official-source lookup. Platform-hosted, pay per query with | |
| Receita Federal: NFS-e mcp-dir/receita_federal_nfse-mcp Receita Federal: NFS-e, official-source lookup. Platform-hosted, pay per query with prepaid credit. | |
| Receita Federal: NIRF mcp-dir/receita_federal_nirf-mcp Receita Federal: NIRF, official-source lookup. Platform-hosted, pay per query with prepaid credit. | |
| Receita Federal PER: DCOMP mcp-dir/receita_federal_perdcomp-mcp Receita Federal PER: DCOMP, official-source lookup. Platform-hosted, pay per query with prepaid cred | |
| Receita Federal: PGFN (CND Federal) - Lista Segunda Via mcp-dir/receita_federal_pgfn_2via_list-mcp Receita Federal: PGFN (CND Federal) - Lista 2nd Copy, official-source lookup. Platform-hosted, pay p | |
| Receita Federal: PGFN (CND Federal) - Segunda Via mcp-dir/receita_federal_pgfn_2via-mcp Receita Federal: PGFN (CND Federal) - 2nd Copy, official-source lookup. Platform-hosted, pay per que | |
| Receita Federal PGFN: Lista de Devedores mcp-dir/receita_federal_pgfn_devedores-mcp Receita Federal PGFN: Lista de Devedores, official-source lookup. Platform-hosted, pay per query wit | |
| Receita Federal: Radar (Habilitação Comércio Exterior) mcp-dir/receita_federal_radar-mcp Receita Federal: Radar (Habilitação Comércio Exterior), official-source lookup. Platform-hosted, pay | |
| Receita Federal Sistema de Acréscimos Legais (SAL): Dados Cadastrais mcp-dir/receita_federal_sal_cadastro-mcp Receita Federal Sistema de Acréscimos Legais (SAL): Dados Cadastrais, official-source lookup. Platfo | |
| Receita Federal SICALC: Gerar DARF mcp-dir/receita_federal_sicalc_darf-mcp Receita Federal SICALC: Gerar DARF, official-source lookup. Platform-hosted, pay per query with prep | |
| Receita Federal: SIMEI (Declaração Anual) mcp-dir/receita_federal_simei_dasn-mcp Receita Federal: SIMEI (Declaração Anual), official-source lookup. Platform-hosted, pay per query wi | |
| Receita Federal Simei MEI: Emissão de Guia de Parcelamento mcp-dir/receita_federal_simei_mei_eg-mcp Receita Federal Simei MEI: Issuance de Guia de Parcelamento, official-source lookup. Platform-hosted | |
| Receita Federal: Simples (Emissão de DAS de MEI) mcp-dir/receita_federal_simples_das-mcp Receita Federal: Simples (Issuance de DAS de MEI), official-source lookup. Platform-hosted, pay per | |
| Receita Federal: Simples (DASN SIMEI) mcp-dir/receita_federal_simples_dasn-mcp Receita Federal: Simples (DASN SIMEI), official-source lookup. Platform-hosted, pay per query with p | |
| Receita Federal Simples MEI: Emissão de Guia de Parcelamento mcp-dir/receita_federal_simples_mei_eg-mcp Receita Federal Simples MEI: Issuance de Guia de Parcelamento, official-source lookup. Platform-host | |
| Receita Federal: Situação Fiscal mcp-dir/receita_federal_situacao-mcp Receita Federal: Situação Fiscal, official-source lookup. Platform-hosted, pay per query with prepai | |
| Receita Federal PF mcp-dir/receita_pf-mcp Looks up the registration status of an individual at the Federal Revenue from the CPF and date of bi | |
| Receita PJ QSA + Participação mcp-dir/receita_pj_qsa-mcp Looks up a company's ownership structure and the partners' holdings in other companies, from the CNP | |
| Receita Federal PJ mcp-dir/receita_pj-mcp Looks up a company's registration data at the Federal Revenue from the CNPJ, optionally with the own | |
| Reclame Aqui mcp-dir/reclameaqui-mcp Manage your company's complaints on Reclame Aqui through the Company Area account. You provide the c | |
| Rede mcp-dir/rede-mcp Sales, receivables, statements and fees for your own Rede (Brazilian card acquirer) merchant account | |
| Rede Celcoin MCP mcp-dir/redecelcoin-mcp Connect your Rede Celcoin account to AI via Brazil's Open Finance: balances, statements, cards, inve | |
| Registradores (ARISP) Certidão: Download de Certidão Digital mcp-dir/registradores_certid_download-mcp Registradores (ARISP) Certificate: Download de Certificate Digital, official-source lookup. Platform | |
| Registradores (ARISP) Certidão: Novo Pedido de Certidão Digital mcp-dir/registradores_certid_pedido-mcp Registradores (ARISP) Certificate: Novo Pedido de Certificate Digital, official-source lookup. Platf | |
| Registradores (ARISP) Certidão: Download de Recibo mcp-dir/registradores_certid_recibo-mcp Registradores (ARISP) Certificate: Download de Recibo, official-source lookup. Platform-hosted, pay | |
| Registradores (ARISP): Consulta de Informações da Conta mcp-dir/registradores_info_conta-mcp Registradores (ARISP): Lookup de Informações da Conta, official-source lookup. Platform-hosted, pay | |
| Registradores (ARISP) Matrícula: Download de Matrícula mcp-dir/registradores_matric_download-mcp Registradores (ARISP) Matrícula: Download de Matrícula, official-source lookup. Platform-hosted, pay | |
| Registradores (ARISP) Matrícula: Lista de Pedidos mcp-dir/registradores_matric_lista-mcp Registradores (ARISP) Matrícula: Lista de Pedidos, official-source lookup. Platform-hosted, pay per | |
| Registradores (ARISP) Matrícula: Novo Pedido de Visualização de Matrícula mcp-dir/registradores_matric_pedido-mcp Registradores (ARISP) Matrícula: Novo Pedido de Visualização de Matrícula, official-source lookup. P | |
| Registradores (ARISP) Matrícula: Download de Recibo mcp-dir/registradores_matric_recibo-mcp Registradores (ARISP) Matrícula: Download de Recibo, official-source lookup. Platform-hosted, pay pe | |
| Registro Civil: Validar Certidão Eletrônica mcp-dir/registro_civil_val_cert_eletr-mcp Registro Civil: Validar Certificate Eletrônica, official-source lookup. Platform-hosted, pay per que |
12,451–12,500 of 115,409
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.