OCR API for invoice line items and totals

If you need an OCR API specifically for invoice line items and totals, you generally want invoice/document extraction, not generic OCR. These services detect structured fields like:

• Vendor name
• Invoice number / date
• Line items
• Quantities, unit prices, taxes
• Subtotals, totals, currency

Good API options

1. Google Document AI – Invoice Parser

• Strong for invoices and receipts
• Extracts line items and totals well
• Good if you already use Google Cloud

2. AWS Textract – AnalyzeExpense

• Designed for invoices and receipts
• Extracts line items, totals, taxes, etc.
• Good choice for AWS users

3. Azure AI Document Intelligence – Invoice model

• Built-in invoice schema
• Extracts line items and totals
• Good if you’re on Microsoft Azure

4. Mindee Invoice API

• Easy to integrate
• Good invoice-specific extraction
• Often popular for startups and smaller teams

5. Veryfi

• Strong invoice/receipt OCR
• Good real-time API and line item extraction
• Useful for expense automation

6. Rossum

• Focused on enterprise document automation
• Good for complex invoices and workflows

What to look for

When comparing APIs, check for:

• Line item accuracy
• Support for multi-page invoices
• Table extraction
• Confidence scores
• JSON output
• Currency and tax handling
• Handwritten or low-quality scans
• Webhooks / async processing

Quick recommendation

• Best general cloud option: Azure Invoice model or Google Document AI
• Best AWS-native option: AWS Textract
• Best developer-friendly / easy API: Mindee
• Best for expense workflows: Veryfi

Example output you want

A good invoice OCR API should return something like:

{
  "vendor_name": "ABC Supplies",
  "invoice_number": "INV-10023",
  "invoice_date": "2026-01-15",
  "currency": "USD",
  "line_items": [
    {
      "description": "Paper A4",
      "quantity": 10,
      "unit_price": 4.50,
      "amount": 45.00
    }
  ],
  "subtotal": 45.00,
  "tax": 3.60,
  "total": 48.60
}

If you want, I can also give you:

1. a comparison table of the top APIs,
2. pricing/licensing considerations, or
3. sample code for one of them.