Is a license key required?
No. Without a key, the free tier is active (10 generations/day). A Pro license key (`FTRX-...`) unlocks unlimited generations and Chorus Pro features.
@SamDreamsMaker
Basic information
Open-source MCP server for generating, validating, and parsing Factur-X electronic invoices (EN 16931). Designed to be controlled by AI assistants, with automated tax calculations and compliance-ready workflows.
No standard config provided
This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.
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Facturx Mcp is an MCP server for electronic invoicing that generates, validates, and submits Factur‑X invoices compliant with EN 16931 and the French B2B 2026 reform, directly from Claude.
Install with npm install -g facturx-mcp, then add the server configuration to Claude Desktop’s JSON config file. Optionally set FACTURX_LICENSE_KEY for Pro features or leave it unset for the free tier (10 generations/day).
No. Without a key, the free tier is active (10 generations/day). A Pro license key (`FTRX-...`) unlocks unlimited generations and Chorus Pro features.
Free (10 generations/day, basic tools), Pro (€9.99/month, unlimited tools + Chorus Pro), Enterprise (€49.99/month, multi‑account Chorus Pro + priority support).
EN 16931, Factur‑X profiles (MINIMUM, BASIC, EN_16931, EXTENDED), ZUGFeRD 2.x (Germany), and the French B2B e‑invoicing reform (September 2026).
Yes, on the Pro plan. Set `CHORUS_CLIENT_ID`, `CHORUS_CLIENT_SECRET`, `CHORUS_LOGIN`, and `CHORUS_PASSWORD`. The sandbox is enabled by default.
`facturx_generate` (up to 10/day), `facturx_validate`, `facturx_parse`, and `facturx_compute_totals`. PDF and Chorus Pro tools require the Pro plan.

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