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com.radar-cnpj/radar-cnpj

by radar-cnpj.com · remote · no sign-in to list tools · v1.0.1 · published by com.radar-cnpj

Brazilian company registry (Receita): CNPJ lookup, CNAE search, idea evaluation, monitoring.

Changes · 13

16 tools: 13 change things and 3 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http radar-cnpj https://radar-cnpj.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

16 tools

Changes things 13Claude Code: ask
  • api_indexThe API index: operations, formats, authentication and limits.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The API index: operations, formats, authentication and limits.

    Annotations the server declares

    • title: API index
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • avaliarEvaluates a business idea in Brazil by how many companies are registered for it: the idea is mapped to a CNAE activity code and a place, and the answer counts the active, opened an…No findings

    Why it is in this group

    • The description's first verb is "evaluate": a word for a change.
    Description, as the server wrote it
    Evaluates a business idea in Brazil by how many companies are registered for it: the idea is mapped to a CNAE activity code and a place, and the answer counts the active, opened and closed companies there, shows how they are set up and gives a plain reading of the numbers. It does not estimate search volume and does not promise demand: `ficha.limites` says what the numbers do not show. Up to 30 AI analyses a day per network, shared with ia_filters; after that, the tool answers `limite_diario` with `renova_em`.

    Annotations the server declares

    • title: Evaluate a business idea
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • consulta_cadastroName, status, activity and address of a Brazilian company by CNPJ.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Name, status, activity and address of a Brazilian company by CNPJ. It does not count against the daily free limit, does not show contacts or partners and runs no extra checks. The origin's protection limit still applies. For sanctions, tax status and a live CNIA check, use consulta_cnpj.

    Annotations the server declares

    • title: Company registration record
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • consulta_cepAddresses at a CEP (Brazilian postal code) with coordinates (CNEFE/IBGE) and the companies registered there.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Addresses at a CEP (Brazilian postal code) with coordinates (CNEFE/IBGE) and the companies registered there. Returns up to 20 addresses and up to 20 companies; the total number of addresses is in `pontos_total`. 10 free lookups per day per network; after that, the tool answers `free_limit` with `resets_at`.

    Annotations the server declares

    • title: Check a CEP
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • consulta_cnpjBrazilian company record by CNPJ from the Federal Revenue (Receita Federal), with the special status when there is one (bankruptcy, judicial recovery, liquidation); its sanctions (…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Brazilian company record by CNPJ from the Federal Revenue (Receita Federal), with the special status when there is one (bankruptcy, judicial recovery, liquidation); its sanctions (CEIS, CNEP, CEPIM, leniency agreements, TCU and the CNJ's CNIA, checked live); partners on the politically exposed persons list (CGU); tax status (federal tax debt, installment agreements, tax incentives and construction works); the Federal Revenue chronic tax debtor list (`devedorContumaz.consta`: barred from public tenders); environmental and labor risk (forced-labor list, Ibama embargoes and fines); government contracts (PNCP, federal contracts since 2013 and sales to municipalities in the state of SP, from TCE-SP) and BNDES financing; registrations with regulators and official registries (CVM, Central Bank, ANS, ANTT, ANP, ANEEL, Anatel, Anvisa, CNES, Cadastur, Ibama, ANAC and SICAF); CVM investment funds; and the address on the map (CNEFE/IBGE). Accepts the numeric and the alphanumeric CNPJ. Personal data in the record comes masked. `sancoes` has what public registries record against the whole company (the CNPJ root), updated daily: useful to vet suppliers. 10 free lookups per day per network; after that, the tool answers `free_limit` with `resets_at`.

    Annotations the server declares

    • title: Check a company (live)
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • consulta_enderecoAddresses and companies at a CEP (Brazilian postal code), without counting against the daily free limit.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Addresses and companies at a CEP (Brazilian postal code), without counting against the daily free limit. Up to 20 addresses and 20 companies; `pontos_total` has the total number of addresses. The origin's protection limit still applies.

    Annotations the server declares

    • title: Addresses of a CEP
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • consulta_sugerirSuggests up to 8 Brazilian companies for a CNPJ, company name, partner, phone or e-mail, ordered by how well they match.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Suggests up to 8 Brazilian companies for a CNPJ, company name, partner, phone or e-mail, ordered by how well they match. It does not count against the daily free limit and does not show contacts. `incompleto` means one of the sources did not answer.

    Annotations the server declares

    • title: Find a company
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • contactWrite to the people behind the product: a question, or a sponsorship/partnership/advertising proposal.No findings

    Why it is in this group

    • The description's first verb is "write": a word for a change.
    Description, as the server wrote it
    Write to the people behind the product: a question, or a sponsorship/partnership/advertising proposal. One route for a question and for a sponsorship, partnership or ad proposal (`tipo`, with the placements of `GET /api/partners`). One message every 10 seconds per network: one that arrives sooner waits its turn and then goes out — no error. The message reaches the team by e-mail, with `email` as the reply address. For voice, send multipart/form-data: `dados` is this JSON (up to 32 KiB), and `audio` is one WebM, Ogg or M4A audio file (up to 2 MB). Audio can replace message. The browser records up to two minutes. Audio is attached to the owner's e-mail.

    Annotations the server declares

    • title: Contact
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • healthHealth of the company database.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Health of the company database. `import.dump_date` is the reference date of the data and `import.counts` has the record counts. It does not confirm real-time changes.

    Annotations the server declares

    • title: Health
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • ia_filtersTurns a plain-language description of the companies you want into filters for `search` (`f`).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Turns a plain-language description of the companies you want into filters for `search` (`f`). It takes 18 to 20 seconds. It shares the daily limit of AI analyses with avaliar.

    Annotations the server declares

    • title: AI search filters
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • localThe caller's approximate location (city and state) from the network edge.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The caller's approximate location (city and state) from the network edge. Never cached: a cached answer would give someone else's place.

    Annotations the server declares

    • title: Caller location
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • refReference vocabularies for the filters: CNAE activity codes (`cnae`), municipalities (`municipio`) and legal natures (`natureza`).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Reference vocabularies for the filters: CNAE activity codes (`cnae`), municipalities (`municipio`) and legal natures (`natureza`). Search a vocabulary by text with `q`.

    Annotations the server declares

    • title: Reference codes
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • suggestUp to eight Brazilian companies for a CNPJ, name, partner, phone or e-mail.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Up to eight Brazilian companies for a CNPJ, name, partner, phone or e-mail. It detects the kind of input, joins the names and removes duplicates. Text needs at least three characters and matches the legal name, the trade name and the partners; exact names come before prefixes, without repeating a CNPJ. A phone needs the area code; an e-mail needs the full address on record. `incompleto: true` means one of the sources failed. Suggestions include no contacts and no personal names. Not cached and not counted as a visit in the metrics.

    Annotations the server declares

    • title: Suggest companies
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 3Claude Code: allow
  • get_cnpjBrazilian company record by CNPJ (14 digits or the alphanumeric format), with the public records linked to the company in `data`: sanctions (CEIS, CNEP, CEPIM, leniency agreements …No findings

    Why it is in this group

    • The name "get_cnpj" says "get": a word for reading.
    Description, as the server wrote it
    Brazilian company record by CNPJ (14 digits or the alphanumeric format), with the public records linked to the company in `data`: sanctions (CEIS, CNEP, CEPIM, leniency agreements and TCU) in `data.sancoes`; the last CNIA check of monitored companies in `data.cnia` (for a live check, use consulta_cnpj); federal tax debt (PGFN) in `data.dividaAtiva`, installment agreements in `data.parcelamentos`, the tax regime (ECF) in `data.regimeTributario`, tax incentives (SISEN, ECF, DIRBI and import waivers) in `data.beneficiosFiscais` and construction works (CNO) in `data.obras`; the Federal Revenue chronic tax debtor list in `data.devedorContumaz` (`consta: true` means barred from public tenders); environmental and labor risk in `data.ambiental` (Ibama fines and embargoes) and `data.trabalhoEscravo` (forced-labor list of the MTE); government contracts on PNCP in `data.governo`; partners on the politically exposed persons list (CGU) in `data.pep`; registrations with regulators (CVM, Central Bank, ANS, ANTT, ANP, ANEEL, Anatel, Anvisa, CNES, Cadastur and Ibama) in `data.registros`; BNDES financing in `data.bndes`; federal government disbursements in `data.pagamentos`; sales to federal agencies by invoice in `data.notasFederais`; federal contracts since 2013 in `data.contratosFederais`; and election campaigns that hired the company in `data.campanhas`. A partner who is a person comes with the name masked (`LUIS F. R. P.`), and so do the name and house number of an individual entrepreneur (MEI included), phone numbers and e-mail, with `data.mascarado: true`; a partner that is a company comes in full. The public answer can be reused for up to 6 hours; check the reference date of the records.

    Annotations the server declares

    • title: Get company by CNPJ
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_constructionFind Brazilian CNO construction works by their 12-digit number, a company CNPJ, or a city and state.No findings

    Why it is in this group

    • The name "search_construction" says "search": a word for reading.
    Description, as the server wrote it
    Find Brazilian CNO construction works by their 12-digit number, a company CNPJ, or a city and state. Filter by area in square meters, construction type, category and status. Only company-owned records are included. Check source dates and update status.

    Annotations the server declares

    • title: Find construction works
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http radar-cnpj https://radar-cnpj.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__radar-cnpj__search_construction",
      "mcp__radar-cnpj__get_cnpj",
      "mcp__radar-cnpj__search"
    ],
    "ask": [
      "mcp__radar-cnpj__api_index",
      "mcp__radar-cnpj__health",
      "mcp__radar-cnpj__suggest",
      "mcp__radar-cnpj__ref",
      "mcp__radar-cnpj__avaliar",
      "mcp__radar-cnpj__ia_filters",
      "mcp__radar-cnpj__local",
      "mcp__radar-cnpj__contact",
      "mcp__radar-cnpj__consulta_cadastro",
      "mcp__radar-cnpj__consulta_endereco",
      "mcp__radar-cnpj__consulta_sugerir",
      "mcp__radar-cnpj__consulta_cnpj",
      "mcp__radar-cnpj__consulta_cep"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as radar-cnpj. Review it before you use it.