mcp-fattura-elettronica-it
This server is an MCP implementation for Italian electronic invoicing (FatturaPA XML v1.6.1), offering 21 tools to manage the full lifecycle of electronic invoices — generation, validation, parsing, and analysis — conforming to SDI/Agenzia delle Entrate specifications, with no external API calls required.
Transmission & Header
Build DatiTrasmissione blocks with SDI codes, PEC addresses, and
ProgressivoInvioidentifiersValidate seller (
CedentePrestatore) and buyer (CessionarioCommittente) blocks including VAT numbers, addresses, and fiscal regimesValidate Italian VAT numbers (Partita IVA) with 11-digit format and modulo-10 checksum
Look up and validate
CodiceDestinatario(6-char SDI code) or PEC address format
Invoice Body
Build
DatiGeneraliwith document type (TD01–TD28), date, number, and currencyAdd line items (
DettaglioLinee) with quantity, unit price, VAT rate, and exemption codesAutomatically compute VAT summaries (
DatiRiepilogo) grouped by VAT rate andNaturacodes (N1–N7)Build payment blocks with conditions (TP01–TP03), methods (MP01–MP23), and IBAN
Attach base64-encoded documents (PDF, XML, ZIP, etc.)
Compute withholding tax (
ritenuta d'acconto) with RT01–RT06 type codes
XML Generation & Validation
Assemble all blocks into a complete, standards-compliant FatturaPA XML document
Validate XML against the official XSD schema v1.6.1
Parse existing FatturaPA XML into structured JSON
Export parsed data to clean, indented JSON
Generate the official SDI filename (
IT{PartitaIVA}_{ProgressivoInvio}.xml)
Reference Codes
Retrieve all official code tables:
RegimeFiscale(RF01–RF19),TipoDocumento(TD01–TD28), andNatura(N1–N7) with descriptions and legal references
mcp-fattura-elettronica-it 🇮🇹
A Python MCP server for Italian electronic invoicing in FatturaPA XML format (SDI / Agenzia delle Entrate standard, version 1.6.1). It enables AI agents (Claude, IDEs) to generate, validate, and analyze B2B, B2G, and cross-border electronic invoices that are directly compliant with the technical specifications of the Sistema di Interscambio (SDI).
This is a Model Context Protocol (MCP) server exposing 21 tools covering the full lifecycle of a FatturaPA XML document: transmission header construction, seller/buyer validation, document type codes (TD01-TD28), line items, VAT summary computation, payment terms, XSD validation against the official Agenzia delle Entrate schema (v1.6.1), XML generation, parsing, JSON export, SDI filename generation, and withholding tax (ritenuta d'acconto) calculation. The server requires no external API calls, as all logic runs locally. Licensed under Apache 2.0.
🚀 Installation
Via PyPI (recommended)
pip install mcp-fattura-elettronica-itmcp-einvoicing-core is installed automatically as a dependency.
lxml is also required and included, so no extra steps are needed.
Without prior installation, using uvx:
uvx mcp-fattura-elettronica-itFrom source
git clone https://github.com/cmendezs/mcp-fattura-elettronica-it.git
cd mcp-fattura-elettronica-it
python -m venv .venv
source .venv/bin/activate # Windows: .venv\Scripts\activate
pip install -e ".[dev]"
cp .env.example .envRelated MCP server: mcp-facture-electronique-fr
⚙️ Configuration
The server does not require external credentials in v0.1.0. The available environment variables are:
Variable | Description | Default |
| Log level ( |
|
| Path to the FatturaPA XSD file |
|
🤖 Claude Desktop integration
Add the following to your claude_desktop_config.json file:
{
"mcpServers": {
"fattura-elettronica-it": {
"command": "uvx",
"args": ["mcp-fattura-elettronica-it"]
}
}
}⌨️ Cursor integration
Configuration file (~/.cursor/mcp.json or .cursor/mcp.json in the project folder):
{
"mcpServers": {
"fattura-elettronica-it": {
"command": "uvx",
"args": ["mcp-fattura-elettronica-it"]
}
}
}🪐 Kiro integration
{
"mcpServers": {
"fattura-elettronica-it": {
"command": "uvx",
"args": ["mcp-fattura-elettronica-it"],
"disabled": false,
"autoApprove": []
}
}
}🧰 Available MCP tools
Header: FatturaElettronicaHeader (7 tools)
Tool | Description |
| Build DatiTrasmissione block: ProgressivoInvio, CodiceDestinatario, PECDestinatario |
| Validate seller block: IdFiscaleIVA, Anagrafica, Sede, RegimeFiscale codes |
| Validate buyer block: IdFiscaleIVA or CodiceFiscale, Sede |
| Return all valid RegimeFiscale codes with descriptions (RF01-RF19) |
| Validate Italian VAT number (Partita IVA) format and checksum (11 digits) |
| Generate a unique ProgressivoInvio identifier (max 10 alphanumeric chars) |
| Return info about a CodiceDestinatario (6-char SDI code) or PEC address |
Body: FatturaElettronicaBody (7 tools)
Tool | Description |
| Build DatiGenerali block: TipoDocumento, Divisa, Data, Numero, Causale |
| Return all TD01-TD28 codes with descriptions and use cases (incl. cross-border) |
| Add a DettaglioLinee entry: NumeroLinea, Descrizione, Quantita, PrezzoUnitario |
| Compute DatiRiepilogo: imponibile, imposta, AliquotaIVA from line items |
| Return all Natura codes (N1-N7 and sub-codes) for VAT exemption with legal references |
| Build DatiPagamento: CondizioniPagamento (TP01/02/03), ModalitaPagamento (MP01-MP23) |
| Attach a base64-encoded document to the Allegati block with name and format |
Global: generation and validation (7 tools)
Tool | Description |
| Generate a complete FatturaPA XML file from structured input data |
| Validate a FatturaPA XML string against the official XSD schema v1.6.1 |
| Parse an existing FatturaPA XML string and return a structured JSON dict |
| Export a parsed FatturaPA structure to clean JSON format |
| Validate Partita IVA format and Luhn-like checksum (11-digit Italian VAT) |
| Generate the official SDI filename: IT{PartitaIVA}_{ProgressivoInvio}.xml |
| Check and compute ritenuta d'acconto (withholding tax) for professional invoices |
Usage examples
Example 1: Generate a complete B2B invoice
1. validate_partita_iva_format("01234567897")
→ { "valid": true }
2. generate_progressivo_invio(sequence=1)
→ { "progressivo_invio": "00001" }
3. build_transmission_header(id_paese="IT", id_codice="01234567897",
progressivo_invio="00001", formato_trasmissione="FPR12",
codice_destinatario="ABC123")
4. validate_cedente_prestatore(id_paese="IT", id_codice="01234567897",
denominazione="ACME Srl", regime_fiscale="RF01",
indirizzo="Via Roma 1", cap="00100", comune="Roma", nazione="IT")
5. validate_cessionario(denominazione="Buyer Srl",
id_paese="IT", id_codice="98765432109",
indirizzo="Via Verdi 2", cap="20100", comune="Milano")
6. build_dati_generali(tipo_documento="TD01", data="2026-01-15",
numero="2026/001", divisa="EUR")
7. add_linea_dettaglio(numero_linea=1, descrizione="Consulenza informatica",
quantita=8, unita_misura="ORE", prezzo_unitario=100.0,
prezzo_totale=800.0, aliquota_iva=22.0)
8. compute_totali(linee=[{"prezzo_totale": 800.0, "aliquota_iva": 22.0}])
→ { "totale_fattura": "976.00" }
9. build_dati_pagamento(condizioni_pagamento="TP02", modalita_pagamento="MP05",
importo_pagamento=976.0, iban="IT60X0542811101000000123456")
10. generate_fattura_xml(...all previous blocks...)
→ { "xml": "<?xml ...", "filename": "IT01234567897_00001.xml" }
11. validate_fattura_xsd(xml_string=...)
→ { "valid": true }Example 2: Professional invoice with withholding tax
check_ritenuta_acconto(imponibile=1000.0, tipo_ritenuta="RT02",
causale_pagamento="A")
→ {
"DatiRitenuta": {
"TipoRitenuta": "RT02",
"ImportoRitenuta": "200.00",
"AliquotaRitenuta": "20.00",
"CausalePagamento": "A"
},
"importo_ritenuta": "200.00"
}Example 3: Look up VAT exemption codes
get_natura_codes()
→ codes: [
{ "code": "N3.1", "description": "Non imponibili — esportazioni",
"legal_ref": "Art. 8 DPR 633/72" },
{ "code": "N6.1", "description": "Inversione contabile — rottami",
"legal_ref": "Art. 74 c. 7-8 DPR 633/72" },
...
]Architecture
mcp-fattura-elettronica-it (this package, standalone MCP server)
├── ItalyPartyValidator(BasePartyValidator) ← Partita IVA modulo-10
├── FatturaGenerator(BaseDocumentGenerator) ← FatturaPA XML v1.6.1
├── FatturaValidator(BaseDocumentValidator) ← lxml XSD v1.6.1
└── FatturaParser(BaseDocumentParser) ← lxml xpath
↑ extends
mcp-einvoicing-core (shared foundation, installed as dependency)
├── BaseDocumentGenerator / Validator / Parser / PartyValidator
├── InvoiceDocument, InvoiceParty, InvoiceLineItem … (Pydantic)
├── xml_utils, logging_utils, exceptions
└── EInvoicingMCPServer (optional multi-country aggregator)📚 Reference standards
Resource | Link |
FatturaPA specifications | |
Official XSD v1.6.1 | |
XML namespace |
|
SDI, Sistema di Interscambio | |
Withholding tax (ritenuta d'acconto) | Art. 25 DPR 600/73, Modello 770 |
🧪 Tests
# Install development dependencies
pip install -e ".[dev]"
# Run all tests
pytest tests/ -v
# Run only MCP integration tests
pytest tests/test_mcp_integration.py -vRoadmap
Version | Features |
v0.1.0 (current) | XML generation, XSD validation, parsing, 21 MCP tools, withholding tax |
v0.2 | CAdES-BES and XAdES digital signatures (smart card, HSM, P12) |
v0.3 | Direct SDI integration via SDICoop SOAP and SFTP, sending and receiving |
v0.4 | Simplified invoice (TD07/TD08/TD09), amounts up to 400 EUR |
v0.5 | Legally compliant archiving, integration with AgID-accredited providers |
Other e-invoicing MCP servers
Country | Server |
🌍 Global | |
🇧🇪 Belgium | |
🇧🇷 Brazil | |
🇫🇷 France | |
🇩🇪 Germany | |
🇮🇹 Italy | |
🇵🇱 Poland | |
🇪🇸 Spain |
📄 License
This project is distributed under the Apache 2.0 license. See the LICENSE file for full details.
Copyright 2026 cmendezs
Project maintained by cmendezs. For questions about the FatturaPA standard implementation, please open an Issue.
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