# cnpj.ia.br

> Empresas do Brasil (CNPJ): consulta por CNPJ, busca por filtros e uso da conta.

- name: br.ia.cnpj/mcp
- version: 0.1.1
- connection class: R2 (oauth_consent_once)
- trust: 96/100
- quality: 100/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/br.ia.cnpj%2Fmcp
- tools: https://api.protogrid.dev/v1/servers/br.ia.cnpj%2Fmcp/tools

**An agent can connect after a one-time OAuth consent by a human.** Remote endpoint behind OAuth 2. Tokens stay with the agent; the registry only exposes the authorization metadata.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "cnpj": {
      "type": "http",
      "url": "https://mcp.cnpj.ia.br",
      "headers": {
        "Authorization": "Bearer ${CNPJ_TOKEN}"
      }
    }
  }
}
```

Placeholders to fill: `${CNPJ_TOKEN}`.

## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-100% +updated-28d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 100/100 (strong)

### protocol: n/a (weight 25)

- n/a `protocol.modern`, `protocol.stateless`, `protocol.transport`, `protocol.list_ttl`: no remote answered a protocol handshake (not probed yet, unreachable, or local-only)

### authorization: 100 (weight 15)

- pass `auth.prm`: Protected Resource Metadata (RFC 9728) published
- pass `auth.as_metadata`: authorization server metadata reachable
- pass `auth.cimd`: Client ID Metadata Documents supported
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 773 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history not recorded yet

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 773 tokens to load them all
- badge: [![protogrid quality](https://protogrid.dev/badge/br.ia.cnpj/mcp.svg)](https://protogrid.dev/servers/br.ia.cnpj/mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://mcp.cnpj.ia.br (streamable-http, auth oauth2, reachable true, uptime30d 1)

## Packages

_none_

## Tools (4)

- `buscar_empresas`: Busca empresas por filtros. Página de até 20, paginação por meta.next_cursor (repassar em cursor). Custa 1 crédito por empresa retornada; página vazia custa 0. Ferramenta de plano pago: no plano Free responde insufficient_plan.
- `consultar_cnpj`: Consulta um CNPJ na base. Custa 1 crédito no perfil basic (cadastro) e 6 créditos no perfil full (cadastro + telefones, e-mails, site, sócios sem CPF, regime tributário, faixa de funcionários e faturamento). Prefira basic.
- `gerar_filtro`: Converte uma descrição em português nos filtros de buscar_empresas. Fluxo em dois passos: (1) descreva o público; (2) passe os campos devolvidos a buscar_empresas, inteiros. O campo explicacao é texto para o usuário; buscar_empresas o aceita e ignora. Custa 1 crédito por chamada.
- `ver_uso`: Uso e franquia da conta (objeto Usage inteiro, sem envelope). Custo 0.