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ksef-client-ts

v0.10.0

Published

TypeScript client for the Polish National e-Invoice System (KSeF) API

Vulnerabilities

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Links

Git

Maintainers

flopbutflopbut

Keywords

ksefe-invoicee-fakturainvoicefakturafa3xmlxsdvalidationpolandtaxtypescriptnodesdkcli

Readme

ksef-client-ts

TypeScript client for the Polish National e-Invoice System (KSeF) API v2.

Documentation · GitHub

Install

npm i ksef-client-ts      # library
npm i -g ksef-client-ts   # ksef CLI

Requires Node.js 18+. Dual ESM/CJS output via tsup.

Quick start

import { KSeFClient } from 'ksef-client-ts';

const client = new KSeFClient({ environment: 'TEST' });
await client.crypto.init();

const challenge = await client.auth.getChallenge();
// ... authenticate, open a session, send invoices
ksef auth login --token "$KSEF_TOKEN" --nip "$KSEF_NIP"
ksef session open              # 1. Open online session (required)
ksef invoice send invoice.xml  # 2. Send invoice
ksef session invoices          # 3. Verify invoice status

Node-only helpers (filesystem storage, native XSD validation) are available from the ksef-client-ts/node entry point.

Documentation

The full feature list, guides, API and CLI reference, and the v0.10 migration guide live in the documentation and the GitHub README:

License

MIT