SignaBras Certificados Digitais
REMOTE · SIGNABRAS.COM.BR
Catálogo de certificados digitais ICP-Brasil A1 (e-CPF, e-CNPJ), políticas e pedido com Pix.
Available components
Last scanned (34 minutes ago)
Scores higher than 89% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
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. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability71
- AI-judged instruction clarity (good).Pass
- 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. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management80
- Stability observed for 24 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +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.
- 2 Nov 26 +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.
- 31 Oct 26 +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.
- 29 Oct 26 +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.
- 27 Oct 26 +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.
- 25 Oct 26 +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.
- 23 Oct 26 +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.
- 20 Oct 26 +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.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://signabras.com.br/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=signabras.com.br | CN=YE1,O=Let's Encrypt,C=US | 10 Oct 2026 | 8 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 654e34efc2a2dedcdc71451dd0e9d52c0c1 |
| SANs: *.signabras.com.br, signabras.com.br | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of signabras.com.br. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| br. | present | 38298 | 13 | Verified |
| com.br. | present | 50930 | 13 | Verified |
| signabras.com.br. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=15552000 |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://signabras.com.br/mcp | Verified | 200 | |
| http (plaintext) | http://signabras.com.br/mcp | HTTPS enforced | 301 | https://signabras.com.br/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
create_pix_order Criar pedido com Pix ~353
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.
| Name | Type | Req | Description |
|---|---|---|---|
| agent_name | string | yes | Nome do agente/assistente que faz o pedido. |
| agent_platform | string | – | Plataforma do agente (claude, chatgpt, app próprio...). |
| birthdate | string | yes | Data de nascimento, YYYY-MM-DD. |
| city_ibge | integer | yes | 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 | yes | CPF do titular (com ou sem máscara). |
| string | yes | 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 | yes | Nome completo do titular, igual ao da Receita Federal. |
| phone | string | yes | Celular do titular com DDD (ex.: 11999998888). |
| product_slug | string | yes | Slug do produto, de search_products/get_product (ex.: e-cpf-a1-12m). |
No output schema declared.
No examples provided.
get_order_status Status do pedido ~68
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.
| Name | Type | Req | Description |
|---|---|---|---|
| order_uuid | string | yes | order_uuid devolvido por create_pix_order. |
No output schema declared.
No examples provided.
get_policies Políticas e prazos ~54
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_product Detalhar certificado ~53
Detalha um certificado pelo slug: preço atual, validade, requisitos, campos obrigatórios do pedido e URLs.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Slug do produto (ex.: e-cpf-a1-12m). |
No output schema declared.
No examples provided.
search_products Buscar certificados ~92
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").
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | – | Texto livre para filtrar (opcional). |
No output schema declared.
No examples provided.
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.
remote · signabras.com.br
claude mcp add --transport http signabras-certificados-signabras 'https://signabras.com.br/mcp'
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.