# Babá Certa (remote · plugin.babacerta.com.br)

Encontre babás por cidade e calcule o custo da contratação e o salário líquido no Brasil.

- Trust score: 81/100 (high trust)
- Change this week: +1
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `plugin.babacerta.com.br`: 81/100 (this document), [markdown](https://verifymcp.io/servers/br-com-babacerta-babacerta/claude-mcp.md), [page](https://verifymcp.io/servers/br-com-babacerta-babacerta/claude-mcp)

## Channel facts

- Endpoint: `https://plugin.babacerta.com.br/claude/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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**: 80/100
  - 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 check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 42/100
  - 0% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 842 tokens (~140/item across 6 items; 5 tools + 1 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **Tool Coverage**: 97/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 89% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 7 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.
  - Supports UI / widget rendering.

## Install

### How do I install the Babá Certa MCP server?

Babá Certa is a hosted endpoint at https://plugin.babacerta.com.br/claude/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-babacerta-babacerta 'https://plugin.babacerta.com.br/claude/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "br-com-babacerta-babacerta": {
      "url": "https://plugin.babacerta.com.br/claude/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "br-com-babacerta-babacerta": {
      "type": "http",
      "url": "https://plugin.babacerta.com.br/claude/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.br-com-babacerta-babacerta]
url = "https://plugin.babacerta.com.br/claude/mcp"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add br-com-babacerta-babacerta --url 'https://plugin.babacerta.com.br/claude/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  br-com-babacerta-babacerta:
    url: "https://plugin.babacerta.com.br/claude/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "br-com-babacerta-babacerta": {
      "Transport": "http",
      "Url": "https://plugin.babacerta.com.br/claude/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add br-com-babacerta-babacerta -t streamable-http -u 'https://plugin.babacerta.com.br/claude/mcp'
```

### Other

```json
{
  "mcpServers": {
    "br-com-babacerta-babacerta": {
      "type": "http",
      "url": "https://plugin.babacerta.com.br/claude/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 81, 0)

- [security] Stability: 0.97 → pass

### 2026-11-04 (score 81, 0)

- [functional] Stability: pass → 0.97

### 2026-11-02 (score 81, 0)

- [security] Stability: 0.97 → pass

### 2026-11-01 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-27 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-23 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (5)

### `buscar_babas_publicas` (~104 tokens)

Buscar babás com perfil público

Consulta perfis públicos consentidos por cidade e UF informadas pela pessoa na conversa. Retorna perfis por publicação recente, sem ranking de qualidade. Não aceita CEP, bairro ou coordenadas, não calcula distância e não infere localização. Diferencia lista vazia de falha técnica.

Input parameters:

- `cidade` (string, required): Cidade brasileira informada pela pessoa, sem endereço ou bairro.
- `uf` (string, required): Sigla da unidade federativa, por exemplo SP.

Output parameters:

- `cidade` (string)
- `count` (number)
- `guideUrl`
- `items` (array)
- `kind` (string)
- `message` (string)
- `status` (string)
- `uf` (string)

### `calcular_custo_baba` (~154 tokens)

Calcular custo de contratação

Calcula o custo mensal e anual estimado de contratação doméstica com salário bruto e transporte informados. Aceita UF sem salarioBruto para calcular um exemplo com a referência estadual vigente na tabela do site. Retorna fontes e premissas; a estimativa não é proposta salarial nem substitui convenção coletiva.

Input parameters:

- `diasUteisMes` (integer): Dias úteis no mês; se não informado, 22.
- `salarioBruto` (number): Salário bruto mensal em reais.
- `uf` (string): Sigla da unidade federativa, por exemplo SP.
- `valeTransporteDiario` (number): Custo diário de vale-transporte em reais; se não informado, zero.

Output parameters:

- `basisYear` (number)
- `breakdown`
- `caveat` (string)
- `diasUteisMes` (number)
- `kind` (string)
- `message` (string)
- `salarioBruto` (number|null)
- `salaryBasis` (string)
- `salaryBasisLabel` (string)
- `sources` (array)
- `status` (string)
- `valeTransporteDiario` (number)

### `calcular_salario_liquido` (~134 tokens)

Calcular salário líquido

Estima o salário líquido mensal de uma babá a partir do salário bruto, dependentes e vale-transporte informados. Retorna INSS, IRRF, transporte, fontes e premissas. Não presume dados da conta nem interpreta vínculos individuais.

Input parameters:

- `dependentes` (integer)
- `diasUteisMes` (integer): Dias úteis no mês; se não informado, 22.
- `salarioBruto` (number, required): Salário bruto mensal em reais.
- `valeTransporteDiario` (number): Custo diário de vale-transporte em reais; se não informado, zero.

Output parameters:

- `basisYear` (number)
- `breakdown`
- `caveat` (string)
- `dependentes` (number)
- `diasUteisMes` (number)
- `kind` (string)
- `message` (string)
- `salarioBruto` (number)
- `sources` (array)
- `status` (string)
- `valeTransporteDiario` (number)

### `mostrar_busca_e_custo` (~180 tokens)

Mostrar perfis e custo

Consulta perfis públicos consentidos e calcula custo de contratação em um cartão interativo com detalhes ajustáveis. Exige cidade e UF informadas pela pessoa na conversa. Refaz a consulta e o cálculo para exibir dados atuais. Sem salário bruto informado, usa referência estadual vigente identificada como exemplo. Não calcula distância nem classifica a qualidade das profissionais.

Input parameters:

- `cidade` (string, required): Cidade brasileira informada pela pessoa, sem endereço ou bairro.
- `diasUteisMes` (integer): Dias úteis no mês; se não informado, 22.
- `salarioBruto` (number): Salário bruto mensal em reais.
- `uf` (string, required): Sigla da unidade federativa, por exemplo SP.
- `valeTransporteDiario` (number): Custo diário de vale-transporte em reais; se não informado, zero.

Output parameters:

- `cost` (object)
- `kind` (string)
- `search` (object)

### `mostrar_salario_liquido` (~137 tokens)

Mostrar salário líquido

Calcula e apresenta salário líquido estimado em um cartão interativo com os descontos detalhados e valores ajustáveis. Requer salário bruto informado. Aceita dependentes, vale-transporte e dias úteis. Retorna dados atuais da calculadora com fontes e premissas.

Input parameters:

- `dependentes` (integer)
- `diasUteisMes` (integer): Dias úteis no mês; se não informado, 22.
- `salarioBruto` (number, required): Salário bruto mensal em reais.
- `valeTransporteDiario` (number): Custo diário de vale-transporte em reais; se não informado, zero.

Output parameters:

- `basisYear` (number)
- `breakdown`
- `caveat` (string)
- `dependentes` (number)
- `diasUteisMes` (number)
- `kind` (string)
- `message` (string)
- `salarioBruto` (number)
- `sources` (array)
- `status` (string)
- `valeTransporteDiario` (number)

## Diagnostics

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

## Score history

- 2026-11-05: 81
- 2026-11-04: 81
- 2026-11-03: 81
- 2026-11-02: 81
- 2026-11-01: 81
- 2026-10-31: 80
- 2026-10-30: 80
- 2026-10-29: 80
- 2026-10-28: 79
- 2026-10-27: 79
- 2026-10-26: 78
- 2026-10-25: 78
- 2026-10-24: 77
- 2026-10-23: 77
- 2026-10-22: 76
- 2026-10-21: 76
- 2026-10-20: 75
- 2026-10-19: 75
- 2026-10-18: 74
- 2026-10-17: 74
- 2026-10-16: 73
- 2026-10-15: 73
- 2026-10-14: 73
- 2026-10-13: 72
- 2026-10-12: 72
- 2026-10-10: 71
- 2026-10-06: 69
- 2026-10-04: 68
- 2026-10-03: 67

## Common questions

### What is the Babá Certa MCP server?

Babá Certa is an MCP server listed in the public MCP registry as br.com.babacerta/babacerta. Encontre babás por cidade e calcule o custo da contratação e o salário líquido no Brasil. This page covers its hosted endpoint (https://plugin.babacerta.com.br/claude/mcp).

### Is the Babá Certa MCP server safe to use?

Babá Certa scores 81 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 Babá Certa MCP server expose?

Babá Certa exposes 5 tools: buscar_babas_publicas, calcular_custo_baba, calcular_salario_liquido, mostrar_busca_e_custo, mostrar_salario_liquido. Their descriptions and schemas cost roughly 709 tokens of context every time the server is loaded.

### Does the Babá Certa MCP server require authentication?

No. We connected to Babá Certa without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Babá Certa MCP server still maintained?

Babá Certa 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://plugin.babacerta.com.br/claude/mcp
- Website: https://babacerta.com.br/
- Changelog RSS feed: https://verifymcp.io/servers/br-com-babacerta-babacerta/claude-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/br-com-babacerta-babacerta/claude-mcp.json
- HTML version of this page: https://verifymcp.io/servers/br-com-babacerta-babacerta/claude-mcp