br.com.brasilnfe/fiscal
REMOTE · API.BRASILNFE.COM.BR · SCANNED SEP 24
Brazilian fiscal MCP server - issue NF-e, NFC-e, NFS-e, CT-e, MDF-e and DC-e via SEFAZ.
Available components
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 Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: this server exposes a tool marked destructive (evento_cancelar) and its handshake is open, but we could not confirm whether a tool call is gated, so we do not assert it is callable unauthenticated. View diagnostics → Unverified
- 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 Usability73
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 10356 tokens (~295/item across 35 items; 34 tools + 1 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 Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage86
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 50% of tool parameters carry a description.Partial
- Structured output schemas are declared (85% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 34 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 36 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
How do I install the br.com.brasilnfe/fiscal MCP server?
br.com.brasilnfe/fiscal is a hosted endpoint at https://api.brasilnfe.com.br/services/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 · api.brasilnfe.com.br
claude mcp add --transport http br-com-brasilnfe-fiscal 'https://api.brasilnfe.com.br/services/Mcp'
{
"mcpServers": {
"br-com-brasilnfe-fiscal": {
"url": "https://api.brasilnfe.com.br/services/Mcp"
}
}
} {
"servers": {
"br-com-brasilnfe-fiscal": {
"type": "http",
"url": "https://api.brasilnfe.com.br/services/Mcp"
}
}
} [mcp_servers.br-com-brasilnfe-fiscal] url = "https://api.brasilnfe.com.br/services/Mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"br-com-brasilnfe-fiscal": {
"type": "remote",
"url": "https://api.brasilnfe.com.br/services/Mcp",
"enabled": true
}
}
} openclaw mcp add br-com-brasilnfe-fiscal --url 'https://api.brasilnfe.com.br/services/Mcp' --transport streamable-http
mcp_servers:
br-com-brasilnfe-fiscal:
url: "https://api.brasilnfe.com.br/services/Mcp" {
"McpServers": {
"br-com-brasilnfe-fiscal": {
"Transport": "http",
"Url": "https://api.brasilnfe.com.br/services/Mcp"
}
}
} assistant mcp add br-com-brasilnfe-fiscal -t streamable-http -u 'https://api.brasilnfe.com.br/services/Mcp'
{
"mcpServers": {
"br-com-brasilnfe-fiscal": {
"type": "http",
"url": "https://api.brasilnfe.com.br/services/Mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 11 Sept 26 0
- MCP protocol: Implements a current MCP spec version (2026-07-28). functional
- MCP protocol version: 2025-11-25 → 2026-07-28 functional
- 8 Sept 26 +7
- HTTPS: unverified → pass ▲ security
- HSTS header: fail → pass ▲ security
- 7 Sept 26 −7
- HTTPS: pass → unverified ▼ security
- HSTS header: pass → fail ▼ security
- 3 Sept 26 0
- “nfe_emitir” added an optional parameter “ValorFrete” cosmetic
- “nfe_emitir” added an optional parameter “ValorTotal” cosmetic
2 cosmetic changes on this day. Switch on “Show cosmetic changes” to see them.
- 2 Sept 26 0
- “nfe_emitir” added an optional parameter “NFPagamentoAntecipado” cosmetic
- “nfe_emitir” reworded the description of “TpNFCredito” cosmetic
2 cosmetic changes on this day. Switch on “Show cosmetic changes” to see them.
- 26 Aug 26 79
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 22 Aug 26 0
- “nota_listar” added an optional parameter “TipoParticipacao” cosmetic
1 cosmetic change on this day. Switch on “Show cosmetic changes” to see it.
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 24 Sept 2026 · Probed https://api.brasilnfe.com.br/services/Mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=brasilnfe.com.br | CN=WE1,O=Google Trust Services,C=US | 3 Sept 2026 | 2 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | cb1413e3267290070e808019785d0ccc |
| SANs: brasilnfe.com.br, *.brasilnfe.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 api.brasilnfe.com.br. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| br. | present | 38298 | 13 | Verified |
| com.br. | present | 2557 | 13 | Verified |
| brasilnfe.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=2592000 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.brasilnfe.com.br/services/Mcp | Verified | 200 | |
| http (plaintext) | http://api.brasilnfe.com.br/services/Mcp | HTTPS enforced | 307 | https://api.brasilnfe.com.br/services/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 →
tributacao_criar Cadastrar nova regra de tributacao ~303
Cadastra uma nova regra de tributacao (CFOP + CSTs + aliquotas). Tipo 1=NFe, 2=NFCe, 3=Energia/Comunicacao. CstIbsCbs e obrigatorio (Reforma Tributaria).
| Name | Type | Req | Description |
|---|---|---|---|
| AliqCbs | number|null | – | – |
| AliqCofins | number | – | – |
| AliqDiferimento | number|null | – | – |
| AliqIbsMun | number|null | – | – |
| AliqIbsUf | number|null | – | – |
| AliqIcms | number | – | – |
| AliqIpi | number|null | – | – |
| AliqPis | number | – | – |
| AliqReducao | number|null | – | – |
| ApiCode | string|null | – | – |
| AutoAliq | boolean | – | – |
| Cfop | integer | yes | – |
| CodBeneficioFiscal | string|null | – | – |
| CstCofins | string|null | – | – |
| CstIbsCbs | string|null | – | – |
| CstIcms | string|null | – | – |
| CstIpi | string|null | – | – |
| CstPis | string|null | – | – |
| Descricao | string | yes | – |
| EnquadramentoIpi | string|null | – | – |
| Id | integer|null | – | – |
| Observacao | string|null | – | – |
| Tipo | integer | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| Erro | string|null | – | – |
| Id | integer|null | – | – |
| Ok | boolean | – | – |
| Tributacao | object|null | – | – |
No examples provided.
tributacao_editar Editar regra de tributacao ~306
Atualiza uma regra de tributacao existente. Id obrigatorio. ATENCAO: envie o payload COMPLETO - campos omitidos sao zerados. Faca tributacao_consultar antes pra ter os dados atuais, depois envie tudo + o que muda. Valida ownership por IdEmpresa.
| Name | Type | Req | Description |
|---|---|---|---|
| AliqCbs | number|null | – | – |
| AliqCofins | number | – | – |
| AliqDiferimento | number|null | – | – |
| AliqIbsMun | number|null | – | – |
| AliqIbsUf | number|null | – | – |
| AliqIcms | number | – | – |
| AliqIpi | number|null | – | – |
| AliqPis | number | – | – |
| AliqReducao | number|null | – | – |
| ApiCode | string|null | – | – |
| AutoAliq | boolean | – | – |
| Cfop | integer | yes | – |
| CodBeneficioFiscal | string|null | – | – |
| CstCofins | string|null | – | – |
| CstIbsCbs | string|null | – | – |
| CstIcms | string|null | – | – |
| CstIpi | string|null | – | – |
| CstPis | string|null | – | – |
| Descricao | string | yes | – |
| EnquadramentoIpi | string|null | – | – |
| Id | integer|null | – | – |
| Observacao | string|null | – | – |
| Tipo | integer | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| Erro | string|null | – | – |
| Id | integer|null | – | – |
| Ok | boolean | – | – |
| Tributacao | object|null | – | – |
No examples provided.
What is the br.com.brasilnfe/fiscal MCP server?
br.com.brasilnfe/fiscal is an MCP server listed in the public MCP registry as br.com.brasilnfe/fiscal. Brazilian fiscal MCP server - issue NF-e, NFC-e, NFS-e, CT-e, MDF-e and DC-e via SEFAZ. This page covers its hosted endpoint (https://api.brasilnfe.com.br/services/Mcp).
Is the br.com.brasilnfe/fiscal MCP server safe to use?
br.com.brasilnfe/fiscal scores 79 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 br.com.brasilnfe/fiscal MCP server expose?
br.com.brasilnfe/fiscal exposes 34 tools: nfe_emitir, nfe_emitir_complementar, nfe_previsualizar, nfenercom_gerar_arquivo, nfenercom_emitir, and 29 more. Their descriptions and schemas cost roughly 10,148 tokens of context every time the server is loaded.
Does the br.com.brasilnfe/fiscal MCP server require authentication?
No. We connected to br.com.brasilnfe/fiscal without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the br.com.brasilnfe/fiscal MCP server still maintained?
br.com.brasilnfe/fiscal is still listed as active in the MCP registry. We last reached this channel on 24 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.