# SignaBras Certificados Digitais (remote · signabras.com.br)

Catálogo de certificados digitais ICP-Brasil A1 (e-CPF, e-CNPJ), políticas e pedido com Pix.

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

## Channel facts

- Endpoint: `https://signabras.com.br/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**: 71/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 735 tokens (~147/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 80/100
  - Stability observed for 24 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 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the SignaBras Certificados Digitais MCP server?

SignaBras Certificados Digitais is a hosted endpoint at https://signabras.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 signabras-certificados-signabras 'https://signabras.com.br/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "signabras-certificados-signabras": {
      "url": "https://signabras.com.br/mcp"
    }
  }
}
```

### VS Code

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

### Codex

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

### opencode

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

### OpenClaw

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

### Hermes

```yaml
mcp_servers:
  signabras-certificados-signabras:
    url: "https://signabras.com.br/mcp"
```

### Netclaw

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

### Vellum

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

### Other

```json
{
  "mcpServers": {
    "signabras-certificados-signabras": {
      "type": "http",
      "url": "https://signabras.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.

### 2026-11-04 (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.

### 2026-11-02 (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.

### 2026-10-31 (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 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-27 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 79, +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.

### 2026-10-23 (score 78, +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.

### 2026-10-20 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (5)

### `search_products` (~92 tokens)

Buscar certificados

Lista os certificados digitais à venda na SignaBras (só A1: e-CPF para pessoa física, e-CNPJ para empresa/MEI) com preço atual em BRL, validade, requisitos e campos obrigatórios do pedido. Filtro livre opcional (ex.: "cnpj", "pessoa física", "mei").

Input parameters:

- `query` (string): Texto livre para filtrar (opcional).

### `get_product` (~53 tokens)

Detalhar certificado

Detalha um certificado pelo slug: preço atual, validade, requisitos, campos obrigatórios do pedido e URLs.

Input parameters:

- `slug` (string, required): Slug do produto (ex.: e-cpf-a1-12m).

### `get_policies` (~54 tokens)

Políticas e prazos

Políticas da SignaBras: reembolso e garantia, requisitos de emissão, renovação, prazos, formas de pagamento, termos, privacidade e contato. Conteúdo estável, com links para as páginas completas.

### `create_pix_order` (~353 tokens)

Criar pedido com Pix

Cria um pedido de certificado em nome do titular e devolve o Pix (QR Code copia-e-cola, imagem e validade) e o link de acompanhamento. Pix-only. Antes de chamar, confirme com o titular produto, preço, requisitos e dados. Exige Authorization: Bearer sb_live_... (chave do operador do agente) no request HTTP ao /mcp. O titular paga o Pix e faz a videoconferência; o agente nunca paga por ele.

Input parameters:

- `agent_name` (string, required): Nome do agente/assistente que faz o pedido.
- `agent_platform` (string): Plataforma do agente (claude, chatgpt, app próprio...).
- `birthdate` (string, required): Data de nascimento, YYYY-MM-DD.
- `city_ibge` (integer, required): Código IBGE do município do titular (7 dígitos).
- `cnpj` (string): CNPJ (obrigatório para produtos PJ).
- `company_name` (string): Razão social (obrigatória para produtos PJ).
- `cpf` (string, required): CPF do titular (com ou sem máscara).
- `email` (string, required): E-mail do próprio titular (recebe o link da videoconferência).
- `idempotency_key` (string): Chave única por pedido; repetir a chamada com a mesma chave não cria outro pedido (24 h).
- `name` (string, required): Nome completo do titular, igual ao da Receita Federal.
- `phone` (string, required): Celular do titular com DDD (ex.: 11999998888).
- `product_slug` (string, required): Slug do produto, de search_products/get_product (ex.: e-cpf-a1-12m).

### `get_order_status` (~68 tokens)

Status do pedido

Consulta o status de um pedido criado por create_pix_order (pagamento, videoconferência, emissão), o Pix ativo e os links. Só pedidos da mesma chave de API. Sem dados pessoais do titular.

Input parameters:

- `order_uuid` (string, required): order_uuid devolvido por create_pix_order.

## Diagnostics

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

## Score history

- 2026-11-05: 84
- 2026-11-04: 84
- 2026-11-03: 83
- 2026-11-02: 83
- 2026-11-01: 82
- 2026-10-31: 82
- 2026-10-30: 81
- 2026-10-29: 81
- 2026-10-28: 80
- 2026-10-27: 80
- 2026-10-26: 79
- 2026-10-25: 79
- 2026-10-24: 78
- 2026-10-23: 78
- 2026-10-22: 77
- 2026-10-21: 77
- 2026-10-20: 77
- 2026-10-19: 76
- 2026-10-18: 76
- 2026-10-17: 75
- 2026-10-16: 75
- 2026-10-15: 74
- 2026-10-14: 74
- 2026-10-13: 73
- 2026-10-12: 73

## Common questions

### What is the SignaBras Certificados Digitais MCP server?

SignaBras Certificados Digitais is an MCP server listed in the public MCP registry as io.github.SignaBras-Certificados/signabras. Catálogo de certificados digitais ICP-Brasil A1 (e-CPF, e-CNPJ), políticas e pedido com Pix. This page covers its hosted endpoint (https://signabras.com.br/mcp).

### Is the SignaBras Certificados Digitais MCP server safe to use?

SignaBras Certificados Digitais 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 SignaBras Certificados Digitais MCP server expose?

SignaBras Certificados Digitais exposes 5 tools: search_products, get_product, get_policies, create_pix_order, get_order_status. Their descriptions and schemas cost roughly 620 tokens of context every time the server is loaded.

### Does the SignaBras Certificados Digitais MCP server require authentication?

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

### Is the SignaBras Certificados Digitais MCP server still maintained?

SignaBras Certificados Digitais 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://signabras.com.br/mcp
- Website: https://signabras.com.br/agents.md
- Changelog RSS feed: https://verifymcp.io/servers/signabras-certificados-signabras/signabras.xml
- Changelog JSON feed: https://verifymcp.io/servers/signabras-certificados-signabras/signabras.json
- HTML version of this page: https://verifymcp.io/servers/signabras-certificados-signabras/signabras