Pricing
Start free. Scale when it counts.
The validator is free and needs no account. With an account you generate 5 ZUGFeRD/Factur-X invoices (EN 16931, B2B) per month for free via the hosted MCP server and REST API. XRechnung (B2G) is not generated yet. You can check XRechnung files in the validator.
Free
5 generated invoices per month with an account. The validator works without an account.
- 5 generated ZUGFeRD/Factur-X invoices per month
- Generation then stops until next month (HTTP 402)
- Free validation, fair use: 10 checks per hour
- PDF/A compliance check
- Validator works without an account
Pay as you go
In preparation, not yet bookable. Planned for low or spiky generation volume.
- Coming soon
- Planned: billing per generated invoice
- MCP server access
- REST API
- PDF + CII XML output
- One rotatable API key per workspace
Starter
Coming soon, not yet bookable. For predictable recurring invoice volume.
- 500 invoices per month
- Hard monthly cap: generation stops at the limit until next month or an upgrade (HTTP 402)
- MCP + REST API
- One rotatable API key per workspace
- Usage overview
Business
Coming soon, not yet bookable. For higher-volume teams and automation workflows.
- 2,500 invoices per month
- Hard monthly cap: generation stops at the limit until next month or an upgrade (HTTP 402)
- MCP + REST API
- One rotatable API key per workspace
- Personal onboarding by email by arrangement
Paid plans are not switched on yet. Until then you get 5 generated invoices per month for free. For pilot access with more volume, email kontakt@fakturai.de. See what gets checked.
What the price covers — and what it does not
Every generated invoice runs through the same technical KoSIT-accept gate as the free validator: PDF/A structure, EN 16931 XSD, the EN 16931 business rules (Schematron) for ZUGFeRD/Factur-X and the official KoSIT validator. There is no cheaper tier that skips this check — the gate is the product.
fakturai enforces technical format conformity. It does not replace tax advice or bookkeeping and makes no promise about content correctness or legal consequences.
Next step: validate an existing invoice for free or read the API & MCP docs.