E-Invoicing-Compliance, eingebaut in dein Produkt.

import Factora from "@factora/sdk";

const factora = new Factora({ apiKey: process.env.FACTORA_API_KEY });

const invoice = await factora.invoices.atomic({
  seller:  { name: "Muster GmbH", vat_id: "DE123456789" },
  buyer:   { name: "Kunde AG", country: "DE" },
  items:   [{ name: "Beratung Q1", quantity: 1,
              unit_price: "500.00", tax_percent: "19.00" }],
  output_formats: ["zugferd_pdf", "xrechnung_xml"],
}, { idempotencyKey: crypto.randomUUID() });

// → invoice.validation.kosit === "valid"

from factora import Factora
import os, uuid

client = Factora(api_key=os.environ["FACTORA_API_KEY"])

invoice = client.invoices.atomic(
    seller={"name": "Muster GmbH", "vat_id": "DE123456789"},
    buyer={"name": "Kunde AG", "country": "DE"},
    items=[{"name": "Beratung Q1", "quantity": 1,
            "unit_price": "500.00", "tax_percent": "19.00"}],
    output_formats=["zugferd_pdf", "xrechnung_xml"],
    idempotency_key=str(uuid.uuid4()),
)

# → invoice.validation.kosit == "valid"

HTTP/1.1 201 Created

{
  "data": {
    "id": "inv_abc123",
    "invoice_number": "RE-2026-0042",
    "status": "created",
    "total_gross": "595.00",
    "files": {
      "zugferd_pdf": "/files/inv_abc123.pdf",
      "xrechnung_xml": "/files/inv_abc123.xml"
    },
    "validation": {
      "kosit":  "valid",
      "schema": "valid",
      "vies":   "verified"
    }
  },
  "errors": [],
  "meta": { "request_id": "req_xyz789" }
}