# apipj · API de CNPJ (remote · apipj.com.br)

CNPJ API: Brazilian company records (Receita Federal open data). Google sign-in or API key

- Trust score: 84/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `apipj.com.br`: 84/100 (this document), [markdown](https://verifymcp.io/servers/br-com-apipj-cnpj/apipj.md), [page](https://verifymcp.io/servers/br-com-apipj-cnpj/apipj)

## Channel facts

- Endpoint: `https://apipj.com.br/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.2.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 83/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 752 tokens (~188/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 77/100
  - Stability observed for 23 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the apipj · API de CNPJ MCP server?

apipj · API de CNPJ is a hosted endpoint at https://apipj.com.br/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http br-com-apipj-cnpj 'https://apipj.com.br/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "br-com-apipj-cnpj": {
      "url": "https://apipj.com.br/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "br-com-apipj-cnpj": {
      "type": "http",
      "url": "https://apipj.com.br/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.br-com-apipj-cnpj]
url = "https://apipj.com.br/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "br-com-apipj-cnpj": {
      "type": "remote",
      "url": "https://apipj.com.br/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add br-com-apipj-cnpj --url 'https://apipj.com.br/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  br-com-apipj-cnpj:
    url: "https://apipj.com.br/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "br-com-apipj-cnpj": {
      "Transport": "http",
      "Url": "https://apipj.com.br/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add br-com-apipj-cnpj -t streamable-http -u 'https://apipj.com.br/mcp'
```

### Other

```json
{
  "mcpServers": {
    "br-com-apipj-cnpj": {
      "type": "http",
      "url": "https://apipj.com.br/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-05 (score 84, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 83, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-28 (score 80, −1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional regression] Schema quality: 136 → 188
- [functional] New tool “buscar_cnpjs”

### 2026-10-26 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-24 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-22 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (4)

### `consultar_cnpj` (~200 tokens)

Consultar CNPJ

Dados cadastrais públicos de um CNPJ na base da Receita Federal (lote mensal): razão social, nome fantasia, situação cadastral, endereço, telefones, e-mail, atividades CNAE, natureza jurídica, porte, capital social, Simples/MEI e sócios (CPF mascarado). Exige uma conta apipj: o cliente pede para conectar e entrar com o Google (OAuth) ou envia uma chave de API; cada consulta conta no limite por minuto e na cota mensal do plano da conta.

Input parameters:

- `cnpj` (string, required): CNPJ com ou sem pontuação, numérico ou alfanumérico (ex.: 11.378.117/0001-20)
- `formato` (string): completo (padrão: objetos aninhados, datas ISO e códigos da Receita) ou simplificado (plano, com datas DD/MM/AAAA e CNPJ, CEP e telefone formatados)

### `validar_cnpj` (~99 tokens)

Validar CNPJ

Confere formato e dígitos verificadores de um CNPJ (numérico ou alfanumérico) sem consultar a base. Devolve cnpj, valido, formatado, alfanumerico e erro. Sem chave e sem consumo de cota.

Input parameters:

- `cnpj` (string, required): CNPJ com ou sem pontuação, numérico ou alfanumérico (ex.: 11.378.117/0001-20)

### `status_base` (~46 tokens)

Status da base

Status do serviço e da base de CNPJ: mês do lote da Receita Federal carregado, data de geração e quantidade de CNPJs. Sem chave e sem consumo de cota.

### `buscar_cnpjs` (~326 tokens)

Buscar CNPJs por atividade e município

Lista estabelecimentos ativos da base da Receita Federal pela atividade econômica principal (CNAE, 7 dígitos) e/ou pelo município (código da Receita com 4 dígitos ou do IBGE com 7); pelo menos um dos dois filtros. Devolve {dataset_month, total, resultados, proximo_cursor}: cada resultado tem os dados cadastrais da consulta individual, sem o quadro de sócios. A página tem no máximo o limite por minuto do plano (ou o argumento limite, até esse valor) e cada CNPJ devolvido consome 1 da cota mensal e 1 do limite por minuto; a próxima página vem com cursor = proximo_cursor (null no fim). Exige a conta apipj, como consultar_cnpj.

Input parameters:

- `cnae` (string): CNAE da atividade principal, 7 dígitos, com ou sem pontuação (ex.: 4781400 ou 47.81-4-00)
- `cursor` (string): proximo_cursor da página anterior, com os mesmos filtros
- `formato` (string): completo (padrão) ou simplificado, como em consultar_cnpj (sem sócios)
- `limite` (integer): Tamanho máximo da página, de 1 até o limite por minuto do plano (padrão: esse limite)
- `municipio` (string): Código do município da Receita (4 dígitos, ex.: 7107 = São Paulo) ou do IBGE (7 dígitos, ex.: 3550308)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/br-com-apipj-cnpj/apipj#diagnostics

## Score history

- 2026-11-05: 84
- 2026-11-04: 83
- 2026-11-03: 83
- 2026-11-02: 82
- 2026-11-01: 82
- 2026-10-31: 81
- 2026-10-30: 81
- 2026-10-29: 81
- 2026-10-28: 80
- 2026-10-27: 81
- 2026-10-26: 81
- 2026-10-25: 80
- 2026-10-24: 80
- 2026-10-23: 79
- 2026-10-22: 79
- 2026-10-21: 78
- 2026-10-20: 78
- 2026-10-19: 77
- 2026-10-18: 77
- 2026-10-17: 76
- 2026-10-16: 76
- 2026-10-15: 76
- 2026-10-14: 75
- 2026-10-13: 75

## Common questions

### What is the apipj · API de CNPJ MCP server?

apipj · API de CNPJ is an MCP server listed in the public MCP registry as br.com.apipj/cnpj. CNPJ API: Brazilian company records (Receita Federal open data). Google sign-in or API key. This page covers its hosted endpoint (https://apipj.com.br/mcp).

### Is the apipj · API de CNPJ MCP server safe to use?

apipj · API de CNPJ scores 84 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the apipj · API de CNPJ MCP server expose?

apipj · API de CNPJ exposes 4 tools: consultar_cnpj, validar_cnpj, status_base, buscar_cnpjs. Their descriptions and schemas cost roughly 671 tokens of context every time the server is loaded.

### Does the apipj · API de CNPJ MCP server require authentication?

No. We connected to apipj · API de CNPJ without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the apipj · API de CNPJ MCP server still maintained?

apipj · API de CNPJ is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://apipj.com.br/mcp
- Website: https://apipj.com.br/guias/consultar-cnpj-ia-mcp
- Changelog RSS feed: https://verifymcp.io/servers/br-com-apipj-cnpj/apipj.xml
- Changelog JSON feed: https://verifymcp.io/servers/br-com-apipj-cnpj/apipj.json
- HTML version of this page: https://verifymcp.io/servers/br-com-apipj-cnpj/apipj