curl -X GET 'https://api.anyformat.ai/workflows/550e8400-e29b-41d4-a716-446655440000/results/?output_format=json' \
  -H 'x-api-key: YOUR_API_KEY'

{
  "invoice-001.pdf": {
    "file_name": "invoice-001.pdf",
    "status": "processed",
    "results": {
      "invoice_number": {
        "value": "INV-12345",
        "confidence": 95,
        "evidence": [{"text": "Invoice #INV-12345", "page_number": 1}]
      },
      "total_amount": {
        "value": "1250.00",
        "confidence": 92,
        "evidence": [{"text": "Total: $1,250.00", "page_number": 1}]
      }
    }
  },
  "invoice-002.pdf": {
    "file_name": "invoice-002.pdf",
    "status": "processed",
    "results": {
      "invoice_number": {
        "value": "INV-12346",
        "confidence": 98,
        "evidence": [{"text": "Invoice Number: INV-12346", "page_number": 1}]
      },
      "total_amount": {
        "value": "875.50",
        "confidence": 94,
        "evidence": [{"text": "Amount Due: $875.50", "page_number": 2}]
      }
    }
  }
}