eu-einvoice: create and validate EU e-invoices (XRechnung, Peppol, ZUGFeRD) in Python, no Java

管理员 — Sat, 24 Oct 2026 06:02:21 +0000

Germany (B2B from 2027), France (from Sept 2026) and Belgium (Peppol since Jan 2026) now require machine-readable e-invoices. Asking Claude to "write an XRechnung XML" usually gives you something that looks right but gets rejected: the VAT breakdown is off by a cent, the Leitweg-ID is missing, or an identifier uses the wrong scheme.

So I packaged the tooling as a skill:

Claude fills a JSON model from your description; the script computes line totals, the VAT breakdown and the document totals.
It generates UBL or CII (or a Factur-X / ZUGFeRD PDF/A-3), then validates the output against the official CEN EN 16931, KoSIT XRechnung and OpenPeppol Schematron rules. They run in Python via Saxon-HE, so no Java is needed.
Rejections come back with the rule ID and a fix. It also checks check digits the official rules miss (Leitweg-ID, SIREN, Belgian enterprise numbers).
It reads and converts received invoices too ("what do I owe in this xrechnung.xml?").

I benchmarked it skill-creator style: the same tasks run by Claude with and without the skill. Both usually get there, but with the skill it's about 2× faster. In one case the user's Leitweg-ID was mistyped: the skill caught it, the baseline didn't. Details and all eval cases are in the repo.

Repo (MIT): https://github.com/uulucky/claude-skill-eu-einvoice

Claude Code: /plugin marketplace add uulucky/claude-skill-eu-einvoice then /plugin install eu-einvoice@uulucky-skills

Python only: pip install eu-einvoice

Built with Claude Code. Feedback from anyone who actually deals with XRechnung or Peppol is very welcome.

DEV Community: 管理员

eu-einvoice: create and validate EU e-invoices (XRechnung, Peppol, ZUGFeRD) in Python, no Java