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    Factur x France

    by Nex AI

    2

    Generate and validate Factur-X/ZUGFeRD hybrid e-invoices compliant with the French EN16931 mandate.

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    About this skill

    Advanced Factur-X & ZUGFeRD E-Invoicing

    Modernize your billing stack for the French e-invoicing mandate with this professional-grade Factur-X engine. This skill automates the creation and validation of hybrid electronic invoices: a human-readable PDF/A-3 that carries a machine-readable EN16931-compliant XML file embedded within it.

    What it does

    • Generation: Produces valid PDF/A-3 files with embedded factur-x.xml (CII) using your structured JSON data.
    • Validation: Performs deep inspection of both PDF metadata (XMP extension schemas) and XML content to ensure EN16931 compliance.
    • Extraction: Automatically parses incoming Factur-X PDFs to extract structured data for seamless ERP or accounting integration.
    • Arithmetic Guardrails: Built-in logic cross-checks VAT rates, line items, and totals to prevent invalid invoice issuance.

    Why this is better than manual prompting

    Generating a Factur-X invoice requires precise PDF/A-3 metadata, specific XML namespaces (urn:cen.eu:en16931:2017), and exact attachment relationships (AFRelationship) that general LLMs cannot produce reliably on their own. This skill provides the specialized Python tooling and validation logic necessary to meet legal requirements for the upcoming French 2026-2027 rollout without relying on expensive third-party APIs.

    Supported Standards

    • Factur-X / ZUGFeRD (Hybrid Invoice Standard)
    • EN16931 (Cross Industry Invoice)
    • PDF/A-3 (ISO 19005-3)
    • French E-invoicing mandate requirements (SIREN/TVA integration)
    finance
    e-invoicing
    factur-x
    fintech
    python
    pdf-a-3
    xml-validation

    Details

    How to install

    Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.

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    Security Scanned

    Passed automated security review

    Permissions

    Allowed Hosts

    www.w3.org
    www.aiim.org
    purl.org
    ns.adobe.com

    File Scopes

    factur-x-france/**

    Creator

    Nex AI

    Founder of Nex AI. I build production-grade Claude Skills from systems that actually run: multi-tenant SaaS, Telegram agents, Raspberry Pi infrastructure, 3D multiplayer rooms. Every skill ships battle-tested patterns, not theory. 33+ open source skills published, commercial catalog growing.

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