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REST API · JSON output · 100 free pages/mo

Invoice Extraction API

Automate invoice data capture with a single API call. Extract vendor names, invoice numbers, line items, totals, tax amounts, and due dates from any invoice format. No templates, no training data, no manual entry.

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One API Call to Extract Data from Any Invoice

Send an invoice to the extraction endpoint with a schema defining the fields you need. Get structured JSON back with vendor details, line items, totals, and dates.

request.sh
curl -X POST \
  https://api-parse.conversiontools.io/v1/extract \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@invoice.pdf" \
  -F 'schema={
    "vendor": "string",
    "invoice_number": "string",
    "date": "string",
    "due_date": "string",
    "subtotal": "number",
    "tax": "number",
    "total": "number",
    "line_items": [{
      "description": "string",
      "quantity": "number",
      "unit_price": "number",
      "amount": "number"
    }]
  }'
response.json
{
  "status": "completed",
  "data": {
    "vendor": "Acme Corp",
    "invoice_number": "INV-2026-0342",
    "date": "2026-03-01",
    "due_date": "2026-03-31",
    "subtotal": 2750.00,
    "tax": 522.50,
    "total": 3272.50,
    "line_items": [
      {
        "description": "Web development services",
        "quantity": 40,
        "unit_price": 62.50,
        "amount": 2500.00
      },
      {
        "description": "Hosting (March 2026)",
        "quantity": 1,
        "unit_price": 250.00,
        "amount": 250.00
      }
    ]
  }
}

How Invoice Extraction Works

Three steps to go from a raw invoice to structured data. No templates, no training - the API adapts to any invoice format automatically.

1

Send Your Invoice

Upload any invoice as a PDF or image to the API endpoint. Works with digital invoices, scanned copies, and photos - any vendor, any layout.

2

AI Reads the Invoice

The API understands the invoice layout, identifies vendor details, line items, totals, tax amounts, and dates - matching them to your schema fields.

3

Get JSON, CSV, or Excel

Receive clean, typed JSON with all invoice fields, or download the same result as a CSV or Excel spreadsheet. Ready for your ERP, accounting system, or accounts payable workflow.

Why Developers Choose Parse for Invoice Extraction

Built for developers who need reliable invoice data extraction without the complexity of traditional OCR pipelines or template-based systems.

Handles Any Invoice Layout

No templates or fixed rules. The API adapts to any invoice format - different vendors, languages, and layouts are handled automatically without configuration.

Multi-Currency Support

Extracts amounts in any currency - USD, EUR, GBP, JPY, and more. Correctly identifies currency symbols, codes, and decimal formatting across locales.

Line Item Extraction

Accurately extracts individual line items from invoice tables - descriptions, quantities, unit prices, and amounts - regardless of table formatting.

Tax & Total Calculation

Extracts subtotals, tax amounts, tax rates, discounts, and grand totals. Handles multiple tax lines, VAT, GST, and sales tax across different regions.

Date Parsing

Extracts and normalizes invoice dates, due dates, and payment terms. Handles various date formats - MM/DD/YYYY, DD.MM.YYYY, written months, and more.

Batch Processing

Process hundreds of invoices programmatically. Use the asynchronous endpoint for large volumes, with webhooks or polling to track extraction progress.

Schema-Driven Extraction, Built for Developers

You define the shape once and the API guarantees it on every call. No post-processing, no guessing what the model returned this time.

Schema is the contract

Define the fields once and every response matches that shape. No null checks for "did the model return a string or an object this time" - the structure is fixed by your schema, not by the document.

Auto-generate the schema

Drop one sample invoice in the dashboard and get a full schema built from your own document. Edit it, save it, and reuse it from the API. No hand-writing JSON Schema.

Typed output, not raw text

Totals come back as numbers, dates as ISO strings, line items as an array of objects. Values are ready to write straight to your database or ERP, with no parsing layer in between.

More document extraction use cases

The same schema-driven API works across every document type. Define a schema once, extract from thousands of files.

Data Extraction API

Extract structured JSON from any document with custom schemas.

PDF Parsing API

Parse any PDF into structured JSON, scanned or digital.

Receipt parsing

Store, items, totals, and payment method from receipts.

Purchase order extraction

PO number, vendor, buyer, and SKU-level line items.

Bank statement to JSON

Transactions, running balances, and dates for reconciliation.

Tax form extraction

Box-level data from W-2, 1099, and other tax forms.

Contract data extraction

Parties, dates, governing law, and key clauses.

Bill of lading extraction

Carrier, parties, ports, containers, and cargo.

Frequently Asked Questions

Common questions about the invoice extraction API.

Can the API handle invoices with different layouts?

Yes. Parse uses AI to understand document context rather than relying on fixed templates. It adapts to different invoice formats, whether they come from a small business, a large enterprise, or an international supplier. No configuration or training is needed for new layouts.

Does the API support multi-currency invoices?

Yes. Parse extracts currency symbols, codes, and amounts from invoices in any currency. Whether the invoice uses USD, EUR, GBP, JPY, or any other currency, the API identifies and returns the correct values along with the currency information.

How does the API extract line items from invoices?

Define a line_items array in your schema with the fields you need - description, quantity, unit price, amount, tax rate, etc. The API identifies the table structure in the invoice and extracts each row as a separate object in the array, regardless of table formatting or layout.

Can I use this API for accounts payable automation?

Yes. Parse is designed for integration into AP workflows. Extract vendor names, invoice numbers, dates, due dates, totals, and line items via the API, then feed the structured JSON directly into your ERP, accounting software, or payment system. You can also download any extraction as a CSV or Excel spreadsheet. The free tier includes 100 pages per month to get started.

How accurate is the invoice data extraction?

Parse uses large language models that understand document context, not just OCR pattern matching. This means it correctly identifies fields even when invoice layouts vary significantly. Accuracy depends on document quality, but structured invoices - both digital and scanned - typically achieve high extraction rates for key fields like totals, dates, and vendor information.

Start Extracting Invoice Data Today

Get your API key and extract data from your first invoice in minutes. 100 pages per month free - no credit card required.

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