io.github.stackin-io/stackin

up checked 2026-11-11T08:39:53.268Z

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Publisher-provided title

Stackin

Publisher-provided description

Issue and manage Brazilian fiscal documents: NF-e for goods, NFS-e for services.

Summary by lookupd

Issues, cancels, corrects and tracks Brazilian NF-e and NFS-e fiscal invoices, with lookups for taxpayers and fiscal codes.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http stackin https://mcp.stackin.io/mcp

Codex, remote (streamable-http)

codex mcp add stackin --url https://mcp.stackin.io/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "stackin": {
      "url": "https://mcp.stackin.io/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (16 tools)

Publisher-provided text

• issue_invoice Issue a Brazilian fiscal document: NFS-e or NF-e. This produces a legal fiscal document. Confirm the data with the user before calling when you inferred any fi
• consult_invoice Look up an invoice's current status by its access key. Read-only: it never changes the document.
• cancel_invoice Cancel an authorized invoice. Legal cancellation, with fiscal and accounting effect, inside a window the NFS-e authorizer enforces for the municipality. Ask th
• get_invoice_pdf Return the printable rendering of a document, as a PDF. Works for both types — a DANFE for nfe, a DANFSe for nfse. The PDF comes back base64-encoded in content
• reissue_invoice Retry a rejected invoice after the data that caused the rejection was fixed. Takes the local invoice_id, not the access key: a rejected document never got one.
• correct_invoice File an electronic correction letter (CC-e) against an NF-e. NF-e only: there is no correction letter for an NFS-e, where a wrong document is cancelled and iss
• invalidate_numbering Declare an NF-e numbering range reserved but never used. NF-e numbering has to be continuous, so a gap left by a failed issuance is explained to the SEFAZ with
• list_invoices List the invoices this company issued, newest first. One document type at a time: pass nfse for services or nfe for goods. A company that issues both has to be
• get_invoice_submissions Show every attempt made for one invoice and what came back. This is the tool that answers "why was it rejected". consult_invoice gives the status; this gives t
• validate_invoice_payload Check invoice data against the field rules without issuing anything. Nothing is sent to the tax authority and no document is created. The SDK models check fiel
• list_received_invoices List NF-e documents other companies issued against this one. The mirror of list_invoices: that one shows what this company issued, this one what it received. R
• manifest_received_invoice Declare this company's position on a document issued against it. Legally binding and irreversible once the tax authority accepts it — ask the human to confirm
• lookup_fiscal_code Resolve one code of one classification, when you know both. Use this to confirm a code before putting it on a document — an NCM that does not exist is rejected
• search_fiscal_codes Find a code from a description, or page through a table. This is the tool for "what NCM is a keyboard" — the one the user actually asks. Prefer it over guessin
• list_fiscal_kinds Which classifications this country has data for, right now. Ask this before assuming a classification exists. The answer grows as the source data does, so a na
• lookup_taxpayer Look up one taxpayer by exact tax id, to confirm who it is. Use it to check a recipient's name before issuing against them. It takes the id exactly — punctuati

Details

• Version: 1.0.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 2305 ms
• First indexed: 2026-11-01T09:56:06.780Z
• Last seen in registry: 2026-11-01T09:56:06.780Z
• Repository: https://github.com/stackin-io/stackin-mcp-plugin
• Website: https://docs.stackin.io/mcp

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• Last crawl: 2026-11-11T16:39:06.253Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp