mcp-fattura-elettronica-it 🇮🇹
<!-- mcp-name: io.github.cmendezs/mcp-fattura-elettronica-it -->
!License   
A Python MCP server for Italian electronic invoicing in FatturaPA XML format (SDI / Agenzia delle Entrate standard, version 1.2.3). 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 42 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 (v1.2.3), XML generation, parsing, JSON export, SDI filename generation, withholding tax (ritenuta d'acconto) calculation, digital signatures (XAdES-BES and CAdES-BES), direct SDI transmission via SDICoop SOAP, SDI notification parsing, and conservazione sostitutiva (legally compliant archiving per AgID). Licensed under Apache 2.0.
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🚀 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 .env---
⚙️ Configuration
The available environment variables are:
| Variable | Description | Default | |----------|-------------|---------| | LOG_LEVEL | Log level (DEBUG, INFO, WARNING, ERROR) | INFO | | FATTURA_XSD_PATH | Path to the FatturaPA XSD file | schemas/FatturaPA_v1.2.3.xsd | | SDI_ENVIRONMENT | SDI environment: test or production | test | | SDI_CERT_PATH | Path to the PKCS#12 mTLS certificate for SDI | (none) | | SDI_CERT_PASSWORD | Passphrase for the PKCS#12 file | (none) | | SDI_ENDPOINT_URL | SDICoop endpoint URL override | (auto from environment) | | SDI_CHANNEL_ID | Channel ID assigned during AdE accreditation | (none) | | EINVOICING_SIGNER_SOCKET | Unix socket for the signer microservice | (none) | | EINVOICING_SIGNER_TOKEN | Auth token for the signer microservice | (none) | | CONSERVAZIONE_STORAGE_PATH | Local archive storage path (dev only) | .conservazione/ |
🤖 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_transmission_header | Build DatiTrasmissione block: ProgressivoInvio, CodiceDestinatario, PECDestinatario | | validate_cedente_prestatore | Validate seller block: IdFiscaleIVA, Anagrafica, Sede, RegimeFiscale codes | | validate_cessionario | Validate buyer block: IdFiscaleIVA or CodiceFiscale, Sede | | get_regime_fiscale_codes | Return all valid RegimeFiscale codes with descriptions (RF01-RF19) | | validate_partita_iva | Validate Italian VAT number (Partita IVA) format and checksum (11 digits) | | generate_progressivo_invio | Generate a unique ProgressivoInvio identifier (max 10 alphanumeric chars) | | lookup_codice_destinatario | Return info about a CodiceDestinatario (6-char SDI code) or PEC address |
Body: FatturaElettronicaBody (7 tools)
| Tool | Description | |------|-------------| | build_dati_generali | Build DatiGenerali block: TipoDocumento, Divisa, Data, Numero, Causale | | get_tipo_documento_codes | Return all TD01-TD28 codes with descriptions and use cases (incl. cross-border) | | add_linea_dettaglio | Add a DettaglioLinee entry: NumeroLinea, Descrizione, Quantita, PrezzoUnitario | | compute_totali | Compute DatiRiepilogo: imponibile, imposta, AliquotaIVA from line items | | get_natura_codes | Return all Natura codes (N1-N7 and sub-codes) for VAT exemption with legal references | | build_dati_pagamento | Build DatiPagamento: CondizioniPagamento (TP01/02/03), ModalitaPagamento (MP01-MP23) | | add_allegato | Attach a base64-encoded document to the Allegati block with name and format |
Global: generation and validation (7 tools)
| Tool | Description | |------|-------------| | generate_fattura_xml | Generate a complete FatturaPA XML file from structured input data | | validate_fattura_xsd | Validate a FatturaPA XML string against the official XSD schema v1.2.3 | | parse_fattura_xml | Parse an existing FatturaPA XML string and return a structured JSON dict | | export_to_json | Export a parsed FatturaPA structure to clean JSON format | | validate_partita_iva_format | Validate Partita IVA format and Luhn-like checksum (11-digit Italian VAT) | | get_sdi_filename | Generate the official SDI filename: IT{PartitaIVA}_{ProgressivoInvio}.xml | | check_ritenuta_acconto | Check and compute ritenuta d'acconto (withholding tax) for professional invoices |
Simplified invoices: FatturaSemplificata VFSM10 (3 tools)
| Tool | Description | |------|-------------| | generate_fattura_semplificata | Generate a simplified invoice XML (TD07/TD08/TD09) using VFSM10 format | | validate_fattura_semplificata_xsd | Validate a simplified invoice XML against the VFSM10 XSD v1.0.2 | | parse_fattura_semplificata_xml | Parse a simplified invoice XML into a structured dict |
Simplified invoices (art. 21-bis DPR 633/72) are valid for transactions up to EUR 400 (tax-inclusive). They use a flatter structure than ordinary FatturaPA: no per-line VAT breakdown, no DatiRiepilogo. Each DatiBeniServizi entry carries its own Descrizione, Importo, and DatiIVA. The VFSM10 format uses namespace v1.0 and is separate from the EN 16931 CIUS used by ordinary invoices.
Digital signatures (2 tools)
| Tool | Description | |------|-------------| | sign_fattura_xades | Apply XAdES-BES enveloped XML signature (.xml). Requires PKCS#12 cert. | | sign_fattura_cades | Apply CAdES-BES CMS/PKCS#7 attached signature (.xml.p7m). Requires PKCS#12 cert. |
Both signature formats are accepted by SDI (Specifiche tecniche SDI v1.8.4, section 2.1). Supports dual mode: signer microservice (keeps keys out of the MCP process) or direct PKCS#12 loading. Requires cryptography>=42.0.0 (installed via the [xml-sign] extra on mcp-einvoicing-core).
SDI integration (5 tools)
| Tool | Description | |------|-------------| | submit_to_sdi | Submit a signed invoice to SDI via SDICoop SOAP (mTLS) | | check_sdi_status | Check submission status by IdentificativoSDI | | parse_sdi_notification | Parse SDI notification XML (RC/NS/MC/NE/EC/SE/DT/MT/AT) | | send_esito_committente | Send acceptance (EC01) or rejection (EC02) to SDI | | get_sdi_channel_info | Show current SDI channel configuration |
Requires AdE accreditation for production use. Configure via SDI_CERT_PATH, SDI_CERT_PASSWORD, SDI_ENVIRONMENT (test/production), and SDI_ENDPOINT_URL (override) environment variables.
Conservazione sostitutiva / archiving (5 tools)
| Tool | Description | |------|-------------| | archive_invoice | Archive a signed invoice with SHA-256 hash and 10-year retention | | retrieve_archived_invoice | Retrieve an archived document by ID | | verify_archive_integrity | Verify SHA-256 hash integrity of an archived document | | list_archived_invoices | List all archived invoices | | build_pacchetto_versamento | Build a PdV ZIP archive for transfer to an AgID-accredited conservator |
Per AgID circolare 65/2014 and DM 17/06/2014, electronic invoices must be archived for a minimum of 10 years. The local filesystem backend is for development only; production requires integration with an AgID-accredited conservazione provider.
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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 v1.2.3
├── FatturaValidator(BaseDocumentValidator) ← lxml XSD v1.2.3
└── 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 | fatturapa.gov.it | | Official XSD v1.2.3 | Schema v1.2.2, Agenzia delle Entrate | | XML namespace | http://ivaservizi.agenziaentrate.gov.it/docs/xsd/fatture/v1.2 | | SDI, Sistema di Interscambio | Agenzia delle Entrate | | Withholding tax (ritenuta d'acconto) | Art. 25 DPR 600/73, Modello 770 |
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🧪 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 -v---
Roadmap
| Version | Features | |---------|----------| | v0.1.0 | XML generation, XSD validation, parsing, 21 MCP tools, withholding tax | | v0.2.0 | Simplified invoices (TD07/TD08/TD09), FPA12 batch invoicing, Codice Fiscale validation, VAT rate warnings, 30 MCP tools | | v0.3.0 | SdI lifecycle scope boundary documented, transmission field defaults removed | | v0.5.0 (current) | XAdES-BES and CAdES-BES digital signatures, direct SDI integration (SDICoop SOAP), conservazione sostitutiva (AgID archiving), 42 MCP tools | | v0.6.0 | SFTP channel, AgID-accredited provider API integration |
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Other e-invoicing MCP servers
| Country | Server | |---------|--------| | 🌍 Global | mcp-einvoicing-core | | 🇧🇪 Belgium | mcp-einvoicing-be | | 🇧🇷 Brazil | mcp-nfe-br | | 🇫🇷 France | mcp-facture-electronique-fr | | 🇩🇪 Germany | mcp-einvoicing-de | | 🇮🇹 Italy | mcp-fattura-elettronica-it | | 🇵🇱 Poland | mcp-ksef-pl | | 🇪🇸 Spain | mcp-facturacion-electronica-es |
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📄 License
This project is distributed under the Apache 2.0 license. See the LICENSE file for full details.
Copyright 2026 cmendezs
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Project maintained by cmendezs. For questions about the FatturaPA standard implementation, please open an Issue.
