NotaMCP
REMOTE · NOTAMCP.COM.BR
Issue Brazilian service invoices (NFS-e Nacional) from your AI, with preview and confirmation.
Available components
Last scanned (20 hours ago)
Scores higher than 66% of remote servers
Reachable. Last reached 4 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 Security83
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. View diagnostics → Pass
- HTTPS check failed: the endpoint is reachable over plaintext HTTP. See how to fix → View diagnostics → Fail
- 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
- The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents. View diagnostics → Partial
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability67
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1554 tokens (~155/item across 10 items; 10 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 Management23
- Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage97
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 92% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 11 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 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.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 28 Oct 26 73
First indexed and scored.
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 4 Nov 2026 · Probed https://notamcp.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=notamcp.com.br | CN=WE1,O=Google Trust Services,C=US | 13 Oct 2026 | 11 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | 946cc5d24447e93b136faa9f1d5fbdb0 |
| SANs: notamcp.com.br, *.notamcp.com.br | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of notamcp.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 |
| notamcp.com.br. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Enforced and verified
The endpoint asked for a token and published valid RFC 9728 metadata describing how to get one.
| Result | Enforced and verified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
WWW-Authenticate challenge Bearer resource_metadata="https://notamcp.com.br/.well-known/oauth-protected-resource"
Bearer resource_metadata="https://notamcp.com.br/.well-known/oauth-protected-resource"| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains |
| content-security-policy | default-src 'self'; script-src 'self' https://www.clarity.ms https://scripts.clarity.ms https://static.cloudflareinsights.com https://accounts.google.com/gsi/client; connect-src 'self' https://*.clarity.ms https://cloudflareinsights.com https://accounts.google.com/gsi/; frame-src https://accounts.google.com/gsi/; img-src 'self' data: blob: https://*.clarity.ms https://c.bing.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com https://accounts.google.com/gsi/style; font-src 'self' data: https://fonts.gstatic.com; base-uri 'self'; object-src 'none'; frame-ancestors 'none'; form-action 'self'; upgrade-insecure-requests |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=(), payment=() |
Protected resource metadata
| Document | https://notamcp.com.br/.well-known/oauth-protected-resource |
|---|---|
| Retrieved | Yes |
| Resource | https://notamcp.com.br/mcp |
| Authorisation server | https://notamcp.com.br/api/auth |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://notamcp.com.br/mcp | Verified | 200 | |
| http (plaintext) | http://notamcp.com.br/mcp | Served over HTTP | 200 |
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 →
cancelar_nota Cancelar uma nota ~125
Cancela uma NFS-e autorizada na SEFIN. Exige confirmar=true — peça confirmação explícita ao usuário antes. O crédito da emissão NÃO volta (a nota existiu); o cancelamento é grátis.
| Name | Type | Req | Description |
|---|---|---|---|
| codigo_motivo | integer | – | 1=erro na emissão · 2=serviço não prestado · 4=duplicidade. |
| confirmar | boolean | yes | Precisa ser true — confirmação do usuário nesta conversa. |
| motivo | string | yes | Motivo em texto (vai para a SEFIN). |
| nota_id | integer | yes | – |
No output schema declared.
No examples provided.
comprar_creditos Adicionar créditos de notas ~97
Gera um link de pagamento (Pix/cartão) para adicionar créditos de notas. Entregue o link ao usuário — o pagamento acontece no navegador dele e as notas entram após a confirmação.
| Name | Type | Req | Description |
|---|---|---|---|
| valor_centavos | integer | yes | Valor da recarga em centavos: 1000 (R$10), 2500 (R$25), 5000 (R$50) ou 10000 (R$100). |
No output schema declared.
No examples provided.
confirmar_emissao Confirmar e emitir a NFS-e ~94
Emite DE VERDADE a nota da prévia. Chame apenas depois que o usuário aprovou a prévia nesta conversa. Idempotente: o mesmo token nunca emite duas vezes. Autorizada, devolve danfse_url (PDF) e xml_url — links para o usuário abrir, que você não consegue baixar.
| Name | Type | Req | Description |
|---|---|---|---|
| confirmacao_token | string | yes | Token devolvido por emitir_nota. |
No output schema declared.
No examples provided.
consultar_nota Consultar uma nota ~48
Situação de uma nota desta conta (status, número, chave de acesso, erro).
| Name | Type | Req | Description |
|---|---|---|---|
| nota_id | integer | yes | Id da nota (veio da emissão ou de listar_notas). |
No output schema declared.
No examples provided.
emitir_nota Preparar emissão de NFS-e (prévia) ~290
Prepara uma NFS-e e devolve a PRÉVIA + confirmacao_token. NÃO emite nada. Mostre a prévia ao usuário e chame confirmar_emissao só depois do OK explícito dele. Tomador: informe tomador_id (salvo) OU tomador_doc + tomador_razao.
| Name | Type | Req | Description |
|---|---|---|---|
| competencia | string | – | Mês de referência YYYY-MM. Vazio = mês atual. |
| configuracao | object | – | Configuração fiscal só desta nota. Campos omitidos herdam o cadastro/configuracao_id. Nunca invente códigos fiscais. |
| configuracao_id | string | – | Id de uma combinação devolvida por listar_configuracoes. |
| discriminacao | string | yes | Descrição do serviço, como sai impressa na nota. |
| tomador_doc | string | – | CNPJ (14 dígitos) ou CPF (11) do tomador. |
| tomador_id | string | – | Id de um tomador salvo (listar_tomadores). |
| tomador_pais | string | – | País ISO2 do tomador estrangeiro (ex.: "SG"). |
| tomador_razao | string | – | Razão social ou nome do tomador. |
| tomador_tipo | string | – | Use "exterior" para tomador estrangeiro. |
| valor | string | yes | Valor do serviço em reais, ex.: "1250,00". |
No output schema declared.
No examples provided.
listar_configuracoes Listar configurações fiscais recentes ~76
Últimas combinações realmente usadas de serviço, CNAE, NBS e tributação. Use configuracao_id em emitir_nota. Se houver ambiguidade, pergunte ao usuário — não escolha nem invente código fiscal.
| Name | Type | Req | Description |
|---|---|---|---|
| limite | integer | – | Máximo de combinações (1–20, padrão 8). |
No output schema declared.
No examples provided.
listar_notas Listar notas ~62
Histórico de notas da conta, com filtros opcionais.
| Name | Type | Req | Description |
|---|---|---|---|
| competencia | string | – | Filtro YYYY-MM. |
| limite | integer | – | Máx. de notas (1–100, padrão 20). |
| status | string | – | Filtro por status. |
No output schema declared.
No examples provided.
listar_tomadores Listar tomadores salvos ~107
Tomadores salvos desta conta (use o id em emitir_nota). Passe `busca` com o NOME que o usuário falou para achar o tomador sem precisar do CNPJ — ignora acento, caixa e pontuação. Se voltar mais de um, pergunte qual antes de emitir.
| Name | Type | Req | Description |
|---|---|---|---|
| busca | string | – | Nome (ou parte) da empresa, ou o documento. Ex.: "acai" acha "Açaí & Cia Ltda". |
No output schema declared.
No examples provided.
saldo Créditos de notas e limites ~33
Quantidade de notas disponíveis, preço por nota, ambiente e teto diário. O nome técnico saldo é mantido por compatibilidade.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
salvar_tomador Salvar tomador ~85
Salva/atualiza um tomador frequente (ex.: "salva a Shopee como tomador").
| Name | Type | Req | Description |
|---|---|---|---|
| doc | string | – | CNPJ ou CPF (só números ou formatado). |
| pais | string | – | ISO2, só para exterior. |
| razao | string | yes | Razão social ou nome. |
| tipo | string | – | – |
No output schema declared.
No examples provided.
How do I install the NotaMCP MCP server?
NotaMCP is a hosted endpoint at https://notamcp.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 · notamcp.com.br
claude mcp add --transport http csseocao-notamcp 'https://notamcp.com.br/mcp'
What is the NotaMCP MCP server?
NotaMCP is an MCP server listed in the public MCP registry as io.github.CssEoCAO/notamcp. Issue Brazilian service invoices (NFS-e Nacional) from your AI, with preview and confirmation. This page covers its hosted endpoint (https://notamcp.com.br/mcp).
Is the NotaMCP MCP server safe to use?
NotaMCP scores 76 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 NotaMCP MCP server expose?
NotaMCP exposes 10 tools: emitir_nota, listar_configuracoes, confirmar_emissao, consultar_nota, listar_notas, and 5 more. Their descriptions and schemas cost roughly 1,017 tokens of context every time the server is loaded.
Does the NotaMCP MCP server require authentication?
Yes. NotaMCP asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the NotaMCP MCP server still maintained?
NotaMCP is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.