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

A developer released eu-einvoice, an MIT-licensed Python package and Claude Code skill for creating and validating EU e-invoices in XRechnung, Peppol and ZUGFeRD formats without requiring Java. In skill-creator-style benchmarks, Claude completed the same e-invoice tasks about twice as fast with the skill as without it, and in one case the skill caught a mistyped Leitweg-ID that the baseline missed. The tool targets new machine-readable invoicing mandates in Germany (B2B from 2027), France (from September 2026) and Belgium (Peppol since January 2026).

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: 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 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.