Document Extraction API: Invoices, DDT and Orders to Structured JSON

Add AI document data extraction to your own product or workflow. Data Alchemy exposes its Intelligent Document Processing engine through a REST API and webhooks: send invoices, delivery notes (DDT), orders or contracts and get back structured, validated JSON — 99.8% accuracy with Claude, around 12 seconds for a one-page document (average time with Claude Sonnet), ready to post into your ERP.

The REST API and webhooks are included in every licence: Basic, Business and Enterprise.

One request, structured data back

Authenticate with your API key, POST the document as multipart/form-data with its document_type, and read the validated fields from a GET on the document id — or let the HMAC-signed webhook push them to you when processing completes.

curl -X POST https://api.data-alchemy.ai/v1/documents \
  -H "Authorization: Bearer $DATA_ALCHEMY_API_KEY" \
  -H "Content-Type: multipart/form-data" \
  -F "file=@invoice.pdf" \
  -F "document_type=invoice"

{
  "id": "doc_8a7f2c91",
  "status": "processing",
  "document_type": "invoice",
  "created_at": "2026-06-04T09:12:33Z",
  "webhook_url": "https://yourapp.example.com/hooks/data-alchemy"
}

curl https://api.data-alchemy.ai/v1/documents/doc_8a7f2c91 \
  -H "Authorization: Bearer $DATA_ALCHEMY_API_KEY"

{
  "document_type": "invoice",
  "header": {
    "supplier": {
      "name": "Rossi Forniture S.r.l.",
      "vat_number": "IT01234567890"
    },
    "invoice_number": "2026/00417",
    "issue_date": "2026-05-28",
    "currency": "EUR"
  },
  "line_items": [
    {
      "sku": "ART-0042",
      "description": "Cartone 30x20x15",
      "quantity": 12,
      "unit_price": 8.50,
      "total": 102.00,
      "vat_rate": 22
    }
  ],
  "totals": { "net": 102.00, "vat": 22.44, "gross": 124.44 },
  "validation": { "status": "validated", "erp_match": true }
}

The same payload reaches your endpoint on the document.processed event when you prefer an asynchronous pipeline, signed with HMAC SHA-256 in the X-Data-Alchemy-Signature header. For the full endpoint reference, every accepted document_type, the complete output schema and error handling, see the developer API documentation.

Everything you need to integrate invoice, DDT and order extraction

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