# facturai

facturai is a German B2B e-invoicing product for AI agents, automation tools, and backend services.

Primary product:
- Remote MCP server: https://fakturai.de/mcp
- German homepage: https://fakturai.de/de
- English homepage: https://fakturai.de/en
- REST API docs: https://fakturai.de/de/docs/api and https://fakturai.de/en/docs/api
- API key signup: https://fakturai.de/de/signup and https://fakturai.de/en/signup

Core use cases:
- Generate German B2B e-invoices as ZUGFeRD / Factur-X hybrid PDFs.
- Generate machine-readable invoice XML alongside buyer-readable PDFs.
- Connect Claude, Cursor, n8n, and backend automations to invoice generation.

Public tools:
- Free validator page: https://fakturai.de/de/validator and https://fakturai.de/en/validator
- Legacy validator redirects: https://fakturai.de/validate, https://fakturai.de/validieren, and https://fakturai.de/validator

Billing:
- Metered generation billing is €0.09 per generated invoice.
- Monthly subscription packages start at €29/month with included volume.
- The free validator does not require an account.

Site map:
- Home: https://fakturai.de/de
- English home: https://fakturai.de/en
- API docs: https://fakturai.de/de/docs/api
- Signup: https://fakturai.de/de/signup
- Validator: https://fakturai.de/de/validator
- Blog index: https://fakturai.de/de/blog
- Sitemap XML: https://fakturai.de/sitemap.xml