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You keep all rights to the invoices you check. Only send invoices you are allowed to share with a service like this one. See the privacy policy for how they are handled.
Plain-English terms for using this site, its MCP server and its API.
The validator, the MCP server and the API are free to use. We may change, limit or stop the service at any time.
We check invoices against the official published rule sets and work hard to keep them current, but the service is provided as is, without any warranty. A pass here does not guarantee that a recipient, platform or authority will accept your invoice. To the extent the law allows, we are not liable for any loss arising from using it.
Results and explanations describe what the technical rules require. They are not legal, tax or accounting advice. For those, ask a qualified adviser.
Use the site, MCP server and API for checking your own or your clients' invoices. Do not overload the service, scrape it in bulk, try to break it or use it to process data you have no right to. We may rate-limit or block traffic that harms the service for others.
You keep all rights to the invoices you check. Only send invoices you are allowed to share with a service like this one. See the privacy policy for how they are handled.
Email [email protected].
Last updated: 15.10.2026