General Tools

stackin.io

Provides tools for issuing, consulting, cancelling, retrieving PDFs of Brazilian fiscal documents (NFS-e/NF-e), and reissuing rejected invoices.

1 endpoint12 known toolsFirst detected September 9, 2026Last detected September 9, 2026

ENDPOINT 1

https://mcp.stackin.io/mcp

No auth detected

MCP server metadata

Name: stackin
Version: 0.1.0

Capabilities

experimentalpromptsresourcestools

Server instructions

Issue, consult and cancel Brazilian fiscal documents through the Stackin API: NFS-e for services and NF-e for goods. Every amount is in BRL. Correction letters, numbering invalidation and recipient manifestations are NF-e only — an NFS-e has none of them, and a wrong one there is cancelled and issued again. An NF-e needs an ncm and a cfop on every item and a complete recipient address; the SEFAZ refuses a partial one. Never infer either code — they decide the tax owed. An issued document is legally binding: confirm the data with the user rather than inferring it.

Known tools 12

issue_invoice

Issue a Brazilian fiscal document: NFS-e or NF-e.

Inferred read-only

consult_invoice

Look up an invoice's current status by its access key.

Potential side effects

cancel_invoice

Cancel an authorized invoice.

Potential side effects

get_invoice_pdf

Return the printable rendering of a document, as a PDF.

Inferred read-only

reissue_invoice

Retry a rejected invoice after the data that caused the rejection was fixed.

Potential side effects

correct_invoice

File an electronic correction letter (CC-e) against an NF-e.

Inferred read-only

invalidate_numbering

Declare an NF-e numbering range reserved but never used.

Inferred read-only

list_invoices

List the invoices this company issued, newest first.

Inferred read-only

get_invoice_submissions

Show every attempt made for one invoice and what came back.

Potential side effects

validate_invoice_payload

Check invoice data against the field rules without issuing anything.

Potential side effects

list_received_invoices

List NF-e documents other companies issued against this one.

Inferred read-only

manifest_received_invoice

Declare this company's position on a document issued against it.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.stackin]
url = "https://mcp.stackin.io/mcp"
enabled = true

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: stackin
Remote MCP URL: https://mcp.stackin.io/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

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

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "stackin": {
      "type": "http",
      "url": "https://mcp.stackin.io/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "stackin",
  "transport": "streamable-http",
  "url": "https://mcp.stackin.io/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.