Brazil Invoice MCP 🇧🇷 — How can my AI agent issue an NFS-e (nota fiscal de serviço) in Brazil?

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Use it in 60 seconds

Paste this into your MCP client config (Claude Desktop, Cursor, Windsurf, or any MCP-capable agent):

{
  "mcpServers": {
    "brazil-invoice": {
      "type": "http",
      "url": "https://inv-br.wishpool.app/mcp"
    }
  }
}

Nothing to install. Credentials, when you need them, travel as HTTP headers on each request and are never stored — see the threat model.

Or run it yourself

Would you rather not send production credentials to a server you do not control? Deploy this identical code to your own account and point your agent at your own URL:

git clone https://github.com/junter1989k-ai/brazil-invoice-mcp && cd brazil-invoice-mcp && npx vercel --prod

MIT-licensed. Self-hosting removes us from the picture entirely, at no cost and with no loss of function.

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Remote MCP server that lets any AI agent issue Brazil NFS-e electronic service invoices (nota fiscal de serviço eletrônica, authorized by the municipality/prefeitura) via Focus NFe. Stateless, bring-your-own credentials, never stores anything.

Live endpoint: https://inv-br.wishpool.app/mcp · Registry: app.wishpool/brazil-invoice-mcp

Quick start

{
  "mcpServers": {
    "brazil-invoice": {
      "type": "http",
      "url": "https://inv-br.wishpool.app/mcp",
      "headers": { "x-focusnfe-token": "your_homologacao_token" }
    }
  }
}

Free homologação (sandbox) tokens from focusnfe.com.br issue test NFS-e with no fiscal effect. Add "x-focusnfe-mode": "production" with your produção token to issue real ones (sandbox is the default). Your digital certificate and inscrição municipal stay in your own Focus NFe account — this server never sees them.

Tools

Tool	What it does
create_invoice	Submit an NFS-e (nota fiscal de serviço) — provider CNPJ + inscrição municipal, buyer name + CPF/CNPJ, valor_servicos + discriminacao + item_lista_servico in, a ref out. Async: returns PROCESSING; poll query_invoice.
query_invoice	Status check by ref: PROCESSING, AUTHORIZED (with numero + codigo_verificacao + url), ERROR (with message), or CANCELED.
cancel_invoice	Void an authorized NFS-e at the prefeitura with a justificativa (15–255 chars).

Owner policy guardrails ride optional headers (x-agentpay-max-amount, x-agentpay-approval-above, x-agentpay-allowed-tools) — set by the human owner in client config; the agent cannot relax them.

Async flow

NFS-e authorization at the prefeitura is asynchronous. create_invoice returns status: PROCESSING and a ref; call query_invoice with that ref until it reads AUTHORIZED (nota autorizada) or ERROR.

Develop

node test/serve.js   # local server on :3227
node test/e2e.js     # protocol + validation + fake-token live probes (real homologação endpoint)

Safety

Pure stateless translation layer. The prefeitura/SEFAZ authorization burden sits with Focus NFe; credentials travel per-request in headers, nothing is stored. Privacy policy.

Roadmap

v1 covers NFS-e (service invoices) — the fit for digital and service merchants. NF-e (nota fiscal eletrônica for physical goods) is planned for v2.

Sister servers

Mexico CFDI invoices are live: inv-mx.wishpool.app. Local payments in 81 countries, one family: mcp.wishpool.app · Taiwan e-invoice 電子發票 included. More invoice countries coming: Chile DTE · Peru CPE · India GST · Poland KSeF · Romania e-Factura · Italy SdI.

MIT licensed.