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Poland's e-invoicing system has no JavaScript SDK, so I published the validation layer

The Polish Ministry of Finance ships KSeF SDKs for Java and .NET only. Here is a zero-dependency TypeScript package for the checks worth running before you ever call the API.

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lunedì 27 luglio 2026·dev.to
Poland's e-invoicing system has no JavaScript SDK, so I published the validation layer
The Polish Ministry of Finance ships KSeF SDKs for Java and .NET only. Here is a zero-dependency TypeScript package for the checks worth running before you ever call the API.