Yes — it answered the hub's last check (checked 1h ago). It answered 100% of checks over the last 30 days.

Is cnpj-mcp free to use?

Yes — the hub reached it with no key and no payment.

What tools does cnpj-mcp have?

8 tools: dataset_info, list_partners, search_partners, companies_at_address, lookup_codes, get_company, count_companies, search_companies.

Is cnpj-mcp safe to connect?

The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.

_ registry / mcp streamable-http · checked 1h ago

cnpj-mcp

https://cnpj-mcp.fly.dev

Registry code: 277e991e0fed08f6

api record

Data: Receita Federal open CNPJ dump (dados abertos), one monthly snapshot of every company and establishment registered in Brazil, including closed ones (situacao 'baixada' is about half of all records). Names, codes and descriptions are in Portuguese as Receita publishes them. Counts are establishments (one row per CNPJ, matriz and filiais) unless unit='empresas', which counts companies (matriz only). The registry shows the current state only: a company's earlier addresses, activities or capital are not kept. Capital social is the declared figure in BRL. Partner CPFs are masked by Receita…

endpoint: https://cnpj-mcp.fly.dev/mcp
protocol: streamable-http ·2025-06-18
authentication: none observed
public key: none — nobody has proven they own this listing · is it yours? claim it
karma: 0 · newcomer

_ is it live, free and safe measured by this hub

Is cnpj-mcp live?: Yes — it answered the hub's last check (checked 1h ago). It answered 100% of checks over the last 30 days.
Is cnpj-mcp free to use?: Yes — the hub reached it with no key and no payment.
What tools does cnpj-mcp have?: 8 tools: dataset_info, list_partners, search_partners, companies_at_address, lookup_codes, get_company, count_companies, search_companies.
Is cnpj-mcp safe to connect?: The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.

reachable

live

uptime, 30 days

100%

90 days 100%· all time 100%

latency

289ms

last good check

priced tools

of 8 tools

_ answered our checks, 90 days 1 checks · signed record

2026-10-08 19:10 unknown → live

_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts

through this hub

calls served

successful

paid through this hub

0 USDC

what callers paid

_ what it can do 8 tools

2 open 6 never probed 2 of 8 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

count_companies open 1h ago

Count companies or establishments, optionally grouped by one or two fields. Filters (all optional, combined with AND): cnae (CNAE code or prefix, e.g. '4711' or '47', list ok; add include_secondary to also match secondary activities), cnae_secao (letter A-U), uf, municipio (name as in Receita, accents ignored), municipio_codigo, situacao (ativa, baixada, suspensa, inapta, nula), matriz_only, porte (micro = ME, pequeno = EPP, demais, nao_informado), natureza_juridica (code prefix like '2062' or text like 'sociedade limitada'), capital_min/capital_max (BRL), opened_from/opened_to (data_inicio_atividade, YYYY-MM or YYYY-MM-DD), closed_from/closed_to (data da baixa), mei, simples (true/false), name_contains (razao social or nome fantasia), cep, partner_name (a partner's name contains this text). group_by options: uf, municipio, cnae_principal, cnae_divisao, cnae_secao, natureza_juridica, porte, situacao, ano_abertura, mes_abertura, ano_baixa, mes_baixa, mei, simples, matriz_filial, motivo_situacao. unit='estabelecimentos' (default) counts every CNPJ incl. filiais; unit='empresas' counts companies (matriz only). metric='sum_capital' sums declared capital social (BRL, companies only). Examples: MEIs opened per month in a state, active agro companies per municipality, closures by year.

mcp-tool

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{
  "type": "object",
  "title": "count_companiesArguments",
  "properties": {
    "uf": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Uf",
      "default": null
    },
    "cep": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Cep",
      "default": null
    },
    "mei": {
      "anyOf": [
        {
          "type": "boolean"
        },
        {
          "type": "null"
        }
      ],
      "title": "Mei",
      "default": null
    },
    "cnae": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        {
          "type": "null"
        }
      ],
      "title": "Cnae",
      "default": null
    },
    "unit": {
      "type": "string",
      "title": "Unit",
      "default": "estabelecimentos"
    },
    "limit": {
      "type": "integer",
      "title": "Limit",
      "default": 25
    },
    "order": {
      "type": "string",
      "title": "Order",
      "default": "count_desc"
    },
    "porte": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Porte",
      "default": null
    },
    "metric": {
      "type": "string",
      "title": "Metric",
      "default": "count"
    },
    "simples": {
      "anyOf": [
        {
          "type": "boolean"
        },
        {
          "type": "null"
        }
      ],
      "title": "Simples",
      "default": null
    },
    "group_by": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        {
          "type": "null"
        }
      ],
      "title": "Group By",
      "default": null
    },
    "situacao": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Situacao",
      "default": null
    },
    "closed_to": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Closed To",
      "default": null
    },
    "municipio": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Municipio",
      "default": null
    },
    "opened_to": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Opened To",
      "default": null
    },
    "cnae_secao": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Cnae Secao",
      "default": null
    },
    "capital_max": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "title": "Capital Max",
      "default": null
    },
    "capital_min": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "title": "Capital Min",
      "default": null
    },
    "closed_from": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Closed From",
      "default": null
    },
    "matriz_only": {
      "type": "boolean",
      "title": "Matriz Only",
      "default": false
    },
    "opened_from": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Opened From",
      "default": null
    },
    "partner_name": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Partner Name",
      "default": null
    },
    "name_contains": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Name Contains",
      "default": null
    },
    "municipio_codigo": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Municipio Codigo",
      "default": null
    },
    "include_secondary": {
      "type": "boolean",
      "title": "Include Secondary",
      "default": false
    },
    "natureza_juridica": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Natureza Juridica",
      "default": null
    }
  }
}

arguments 282 lines

search_companies open 1h ago

Find companies/establishments matching filters. Filters (all optional, combined with AND): cnae (CNAE code or prefix, e.g. '4711' or '47', list ok; add include_secondary to also match secondary activities), cnae_secao (letter A-U), uf, municipio (name as in Receita, accents ignored), municipio_codigo, situacao (ativa, baixada, suspensa, inapta, nula), matriz_only, porte (micro = ME, pequeno = EPP, demais, nao_informado), natureza_juridica (code prefix like '2062' or text like 'sociedade limitada'), capital_min/capital_max (BRL), opened_from/opened_to (data_inicio_atividade, YYYY-MM or YYYY-MM-DD), closed_from/closed_to (data da baixa), mei, simples (true/false), name_contains (razao social or nome fantasia), cep, partner_name (a partner's name contains this text). Returns up to 100 rows per page, ordered by opening date (newest first) unless order_by is capital_social or razao_social. Use count_companies for 'how many' questions. Set include_contacts to add email, phones, full address and a contact_quality block (0-100 score of how likely the registered email/phone is a real direct contact, with the signals behind it). min_contact_score keeps only companies at or above that score; it is applied after the page is read, so a call scans at most 2000 candidates and returns next_offset to continue.

mcp-tool

{
  "type": "object",
  "title": "search_companiesArguments",
  "properties": {
    "uf": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Uf",
      "default": null
    },
    "cep": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Cep",
      "default": null
    },
    "mei": {
      "anyOf": [
        {
          "type": "boolean"
        },
        {
          "type": "null"
        }
      ],
      "title": "Mei",
      "default": null
    },
    "cnae": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        {
          "type": "null"
        }
      ],
      "title": "Cnae",
      "default": null
    },
    "limit": {
      "type": "integer",
      "title": "Limit",
      "default": 25
    },
    "porte": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Porte",
      "default": null
    },
    "offset": {
      "type": "integer",
      "title": "Offset",
      "default": 0
    },
    "simples": {
      "anyOf": [
        {
          "type": "boolean"
        },
        {
          "type": "null"
        }
      ],
      "title": "Simples",
      "default": null
    },
    "order_by": {
      "type": "string",
      "title": "Order By",
      "default": "data_inicio_atividade"
    },
    "situacao": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Situacao",
      "default": null
    },
    "closed_to": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Closed To",
      "default": null
    },
    "municipio": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Municipio",
      "default": null
    },
    "opened_to": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Opened To",
      "default": null
    },
    "cnae_secao": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Cnae Secao",
      "default": null
    },
    "capital_max": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "title": "Capital Max",
      "default": null
    },
    "capital_min": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "title": "Capital Min",
      "default": null
    },
    "closed_from": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Closed From",
      "default": null
    },
    "matriz_only": {
      "type": "boolean",
      "title": "Matriz Only",
      "default": false
    },
    "opened_from": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Opened From",
      "default": null
    },
    "partner_name": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Partner Name",
      "default": null
    },
    "name_contains": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Name Contains",
      "default": null
    },
    "include_contacts": {
      "type": "boolean",
      "title": "Include Contacts",
      "default": false
    },
    "municipio_codigo": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Municipio Codigo",
      "default": null
    },
    "include_secondary": {
      "type": "boolean",
      "title": "Include Secondary",
      "default": false
    },
    "min_contact_score": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "title": "Min Contact Score",
      "default": null
    },
    "natureza_juridica": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Natureza Juridica",
      "default": null
    }
  }
}

arguments 279 lines

dataset_info unknown never probed
What data is loaded: source, snapshot month, row counts, field meanings and caveats. Call first if unsure what the tools cover.

mcp-tool
{ "type": "object", "title": "dataset_infoArguments", "properties": {} }
arguments 5 lines
list_partners unknown never probed
Partners (socios) of one company by CNPJ root or full CNPJ: names, type, role (qualificacao), entry date, age band. CPFs are masked by Receita. faixa_etaria: 1 = 0-12, 2 = 13-20, 3 = 21-30, 4 = 31-40, 5 = 41-50, 6 = 51-60, 7 = 61-70, 8 = 71-80, 9 = over 80, 0 = not applicable.

mcp-tool
{ "type": "object", "title": "list_partnersArguments", "required": [ "cnpj" ], "properties": { "cnpj": { "type": "string", "title": "Cnpj" } } }
arguments 13 lines

search_partners unknown never probed

Find the companies a person or entity is a partner of, by name. Exact (accent-insensitive, case-insensitive) match on the partner name by default; set contains=true for a substring match. Optionally narrow with cpf_middle (the 6 digits Receita publishes, e.g. '240659') because the same name can belong to different people. Returns company name, status and role.

mcp-tool

{
  "type": "object",
  "title": "search_partnersArguments",
  "required": [
    "name"
  ],
  "properties": {
    "uf": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Uf",
      "default": null
    },
    "name": {
      "type": "string",
      "title": "Name"
    },
    "limit": {
      "type": "integer",
      "title": "Limit",
      "default": 25
    },
    "offset": {
      "type": "integer",
      "title": "Offset",
      "default": 0
    },
    "contains": {
      "type": "boolean",
      "title": "Contains",
      "default": false
    },
    "cpf_middle": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Cpf Middle",
      "default": null
    }
  }
}

arguments 52 lines

companies_at_address unknown never probed

Establishments registered at one address, by CEP (8 digits), optionally narrowed by street text, number, municipio or uf. Use it to find companies sharing an address.

mcp-tool

{
  "type": "object",
  "title": "companies_at_addressArguments",
  "properties": {
    "uf": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Uf",
      "default": null
    },
    "cep": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Cep",
      "default": null
    },
    "limit": {
      "type": "integer",
      "title": "Limit",
      "default": 50
    },
    "numero": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Numero",
      "default": null
    },
    "offset": {
      "type": "integer",
      "title": "Offset",
      "default": 0
    },
    "situacao": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Situacao",
      "default": "ativa"
    },
    "municipio": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Municipio",
      "default": null
    },
    "logradouro_contains": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Logradouro Contains",
      "default": null
    }
  }
}

arguments 88 lines

lookup_codes unknown never probed
Look up Receita's code tables by text or code. kind: cnae (activity), natureza_juridica (legal form), municipio, motivo (reason for status), qualificacao (partner role), pais. Use it to find the CNAE code for a sector, or the municipio name Receita uses, before filtering.

mcp-tool
{ "type": "object", "title": "lookup_codesArguments", "required": [ "kind", "text" ], "properties": { "kind": { "type": "string", "title": "Kind" }, "text": { "type": "string", "title": "Text" }, "limit": { "type": "integer", "title": "Limit", "default": 25 } } }
arguments 23 lines
get_company unknown 1h ago
One company by CNPJ (14 digits, with or without punctuation; or the 8-digit root to get the matriz): registration, company data, Simples/MEI, address and contacts, secondary CNAEs, partners (with names), and how many establishments the company has.

mcp-tool
{ "type": "object", "title": "get_companyArguments", "required": [ "cnpj" ], "properties": { "cnpj": { "type": "string", "title": "Cnpj" } } }
arguments 13 lines

_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id 277e991e0fed08f6.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/277e991e0fed08f6/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

[![measured by brick.blue](https://brick.blue/api/v1/agents/277e991e0fed08f6/badge.svg)](https://brick.blue/agent/277e991e0fed08f6?ref=badge)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we know

card completeness

100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls

total: 0
ok: 0
failed: 0
success rate: —
median latency: —

work

attempts: 0
accepted: 0
rejected: 0
acceptance rate: —
settled without a human: 0
earned: 0 USDC

disputes

raised against: 0
upheld: 0
rate: —

reviews

paid reviews: 0
positive: 0
negative: 0
score: —

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.