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PopNx MCPMCP servers for people who use AI · explained in plain words

MCP Afip

by codesparversion 0.2.0-alpha.3i★ 279 (Stars for the whole repo)iRuns on your computer
Registry nameio.github.codespar/mcp-afip

How to install

What it does

AFIP — Argentine tax authority, electronic invoicing (Factura Electrónica)

  • Connects Runs on your computer
  • Account or key Needs AFIP_KEY_PATH · 2 settings to fill in (AFIP_CERT_PATH, AFIP_CUIT)
  • Category Accounting, finance & tax

Install

Pick the AI app you use, then copy the settings.

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a MCP Afip key (create it on the maker’s site) · 2 setting(s) to fill in (AFIP_CERT_PATH, AFIP_CUIT) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a MCP Afip key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Fill in 2 setting(s)

    These are program settings, not keys. No sign-up needed; fill them in as the maker describes.

    • AFIP_CERT_PATH Path to AFIP certificate (.crt)
    • AFIP_CUIT CUIT number

    Descriptions are as written by the maker.

  4. Open the Claude desktop app’s settings file

    SettingsDeveloperEdit Config

  5. Paste these settings and save the file

    {
      "mcpServers": {
        "afip": {
          "command": "npx",
          "args": [
            "-y",
            "@codespar/mcp-afip"
          ],
          "env": {
            "AFIP_CERT_PATH": "your-value",
            "AFIP_KEY_PATH": "your-value",
            "AFIP_CUIT": "your-value"
          }
        }
      }
    }

    Paste the key only into the app’s field, never into a chat or to anyone

  6. Quit Claude and open it again

  7. Try it

    Use MCP Afip and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using MCP Afip or shows a MCP Afip tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect MCP Afip yet

MCP Afip runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect MCP Afip

  • You need a MCP Afip key (create it on the maker’s site) · 2 setting(s) to fill in (AFIP_CERT_PATH, AFIP_CUIT) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
  • You need a MCP Afip key (create it on the maker’s site) · 2 setting(s) to fill in (AFIP_CERT_PATH, AFIP_CUIT) · Install Node.js on your computer first (one time)
  • You need a MCP Afip key (create it on the maker’s site) · 2 setting(s) to fill in (AFIP_CERT_PATH, AFIP_CUIT) · Install Node.js on your computer first (one time)
  • You need a MCP Afip key (create it on the maker’s site) · 2 setting(s) to fill in (AFIP_CERT_PATH, AFIP_CUIT) · Install Node.js on your computer first (one time)

B · Others in Accounting, finance & tax that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Works with Claude Code, with some setup first

You need a MCP Afip key (create it on the maker’s site) · 2 setting(s) to fill in (AFIP_CERT_PATH, AFIP_CUIT) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a MCP Afip key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Fill in 2 setting(s)

    These are program settings, not keys. No sign-up needed; fill them in as the maker describes.

    • AFIP_CERT_PATH Path to AFIP certificate (.crt)
    • AFIP_CUIT CUIT number

    Descriptions are as written by the maker.

  4. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  5. Paste this command and press Enter

    claude mcp add --scope user afip --env AFIP_CERT_PATH=your-value --env AFIP_KEY_PATH=your-value --env AFIP_CUIT=your-value -- npx -y @codespar/mcp-afip

    Replace “your-value” with your key before pressing Enter

    Paste the key only into the app’s field, never into a chat or to anyone

  6. Type /mcp in Claude Code

    You should see MCP Afip listed as connected

  7. Try it

    Use MCP Afip and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using MCP Afip or shows a MCP Afip tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a MCP Afip key (create it on the maker’s site) · 2 setting(s) to fill in (AFIP_CERT_PATH, AFIP_CUIT) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a MCP Afip key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Fill in 2 setting(s)

    These are program settings, not keys. No sign-up needed; fill them in as the maker describes.

    • AFIP_CERT_PATH Path to AFIP certificate (.crt)
    • AFIP_CUIT CUIT number

    Descriptions are as written by the maker.

  4. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  5. Fill in your key

    In the MCP Afip settings, AFIP_KEY_PATH, AFIP_CERT_PATH, AFIP_CUIT is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  6. Open the AI chat in Cursor in Agent mode

  7. Try it

    Use MCP Afip and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using MCP Afip or shows a MCP Afip tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a MCP Afip key (create it on the maker’s site) · 2 setting(s) to fill in (AFIP_CERT_PATH, AFIP_CUIT) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a MCP Afip key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Fill in 2 setting(s)

    These are program settings, not keys. No sign-up needed; fill them in as the maker describes.

    • AFIP_CERT_PATH Path to AFIP certificate (.crt)
    • AFIP_CUIT CUIT number

    Descriptions are as written by the maker.

  4. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  5. Fill in your key

    In the MCP Afip settings, AFIP_KEY_PATH, AFIP_CERT_PATH, AFIP_CUIT is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  6. Open the AI chat in VS Code in Agent mode

  7. Try it

    Use MCP Afip and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using MCP Afip or shows a MCP Afip tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use MCP Afip💬 Discussion →
For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user afip --env AFIP_CERT_PATH=your-value --env AFIP_KEY_PATH=your-value --env AFIP_CUIT=your-value -- npx -y @codespar/mcp-afip

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "afip": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-afip"
      ],
      "env": {
        "AFIP_CERT_PATH": "your-value",
        "AFIP_KEY_PATH": "your-value",
        "AFIP_CUIT": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "afip": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-afip"
      ],
      "env": {
        "AFIP_CERT_PATH": "your-value",
        "AFIP_KEY_PATH": "your-value",
        "AFIP_CUIT": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "afip": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-afip"
      ],
      "env": {
        "AFIP_CERT_PATH": "your-value",
        "AFIP_KEY_PATH": "your-value",
        "AFIP_CUIT": "your-value"
      }
    }
  }
}

Values you fill in

  • AFIP_CERT_PATH required env
    Path to AFIP certificate (.crt)
  • AFIP_KEY_PATH secret required env
    Path to AFIP private key (.key)
  • AFIP_CUIT required env
    CUIT number

Descriptions are as written by the maker.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub starsi
279 (Stars for the whole repo)
This repo holds several MCP listings; its stars count once in rankings
Downloads per weeki
52/wk
Connection
Runs on your computer
Latest versioni
0.2.0-alpha.3
Published to registryi
Jun 23, 2026
Code last changedi
Nov 13, 2026
Maker
codespar
Packages
npm: @codespar/mcp-afip
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

All apps, with pros and cons →

Related guides

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 14, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account codespar, which owns the repo

  • ✓ Pass

    Still maintained

    Code last changed yesterday

  • ✓ Pass

    Has a licence

    Uses MIT

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

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User reviews

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Compared with others in Accounting, finance & taxi

  • More stars than 0% of the other 3213 servers in this category
  • Published to the registry more recently than 13% of the other 3213 servers in this category
  • Basic checks equal to or better than 100% of the other 3213 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is MCP Afip safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: AFIP_KEY_PATH

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed yesterday, and the latest version (0.2.0-alpha.3) reached the registry 5 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: CCXT, Finance Toolkit, AKQuant

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

CCXT

Official CCXT MCP server - Market data and trading across 100+ exchanges and prediction markets

by ccxtWidely used↓ 667/wk★ 44.9K Stars for the whole repoUpdated 2 months ago

Runs on your computer

Finance Toolkit

500+ transparent financial methods calculated from raw statements, not third-party endpoints.

by JerBoumaWidely used↓ 15.6K/wk★ 5.5KUpdated 5 days ago

Computer or cloud

AKQuant

Write and backtest trading strategies with AKQuant: API lookup, strategy checks, backtest runs

by akfamilyWidely used↓ 3.3K/wk★ 2.6KUpdated yesterday

Runs on your computer

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

@codespar/mcp-afip

MCP server for AFIP, the Argentine tax authority (Administracion Federal de Ingresos Publicos), for electronic invoicing (Factura Electronica) with CAE authorization

Alpha release — published under the alpha npm dist-tag. Endpoint paths follow public docs and BACEN/provider conventions but have not been fully live-validated. Pin exact versions during 0.x.x-alpha. Install with npm install @codespar/mcp-afip@alpha.

Quick Start

# Set your credentials

export AFIP_CERT_PATH="/path/to/cert.crt" export AFIP_KEY_PATH="/path/to/key.key" export AFIP_CUIT="20123456789"

Run via stdio

npx -y @codespar/mcp-afip@alpha

Run via HTTP

MCP_HTTP=true MCP_PORT=3000 npx -y @codespar/mcp-afip@alpha

Environment Variables

VariableRequiredDescription
AFIP_CERT_PATHYesPath to AFIP certificate (.crt)
AFIP_KEY_PATHYesPath to AFIP private key (.key)
AFIP_CUITYesCUIT number of the taxpayer
AFIP_ENVNo"production" or "homologation" (default: homologation)
MCP_HTTPNoSet to "true" to enable HTTP transport
MCP_PORTNoHTTP port (default: 3000)

Tools (20)

ToolPurpose
create_invoiceCreate an electronic invoice (Factura Electrónica) via AFIP
get_invoiceGet invoice details by type, point of sale, and number
get_last_invoice_numberGet last authorized invoice number for a point of sale and type
get_cae_statusCheck CAE authorization status for an invoice
list_invoice_typesList available invoice types (Factura A, B, C, etc.)
list_tax_typesList available tax types (IVA, percepciones, retenciones, etc.)
get_server_statusCheck AFIP web-service availability (WSFE status)
get_authorized_points_of_saleList authorized puntos de venta for the CUIT
create_invoice_batchCreate a batch of invoices in a single CAE request (FECAESolicitar, up to 250)
create_credit_noteIssue a credit note (Nota de Crédito A/B/C: types 3, 8, 13) referencing an original invoice
create_debit_noteIssue a debit note (Nota de Débito A/B/C: types 2, 7, 12) referencing an original invoice
cancel_invoiceCancel/void an authorized invoice (FECancel — limited to certain types/conditions)
get_invoice_total_x_requestMax number of records allowed per FECAESolicitar request (FECompTotXRequest)
list_concept_typesList available concept types (FEParamGetTiposConcepto: 1=Products, 2=Services, 3=Both)
list_doc_typesList document/identifier types (FEParamGetTiposDoc: 80=CUIT, 86=CUIL, 96=DNI, 99=Consumer Final)
list_iva_typesList IVA tax aliquots (FEParamGetTiposIva: 21%, 10.5%, 27%, 0%, etc.)
list_currency_typesList supported currencies (FEParamGetTiposMonedas)
get_currency_rateGet FX rate (cotización) for a currency vs ARS (FEParamGetCotizacion)
lookup_taxpayerPadrón lookup by CUIT (WS_SR_PADRON A4/A5/A13 — fiscal status, name, address)
get_registration_certificateGet constancia de inscripción (registration certificate) for a CUIT

Auth

Uses certificate-based WSAA authentication (SOAP). The MCP server wraps AFIP's SOAP services (WSFE) internally using a REST approach. You need a valid certificate issued by AFIP. For testing, use the homologation environment.

API Reference


Enterprise

Need governance, budget limits, and audit trails for agent payments? CodeSpar Enterprise adds policy engine, payment routing, and compliance templates on top of these MCP servers.

Authentication

Set these environment variables before launching the server:

  • AFIP_CERT_PATH *(required)* — Path to AFIP certificate (.crt)
  • AFIP_KEY_PATH *(required, secret)* — Path to AFIP private key (.key)
  • AFIP_CUIT *(required)* — CUIT number

Issue credentials at the provider's developer portal: https://www.afip.gob.ar/ws.

License

MIT