Build an Expense Tracking App on the DocuParse API

Let users snap a receipt and get back merchant, date, total, tax, and line items as structured JSON — ready to store and categorize.

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97%

97% field-level accuracy

across header fields on a 100-invoice benchmark

The workflow

1

Capture

A user uploads a receipt photo or PDF from your app.

2

Extract

Send it to the extraction endpoint and get named fields back.

3

Categorize

Use the merchant and line items to auto-categorize the expense.

4

Store

Save the structured record to your database with the confidence score.

The one call that powers it

curl -X POST https://docuparseapi.com/api/v1/extract   -H "Authorization: Bearer YOUR_API_KEY"   -F "file=@document.pdf"

Fields you get

merchantdatecurrencysubtotaltaxtotalpayment_methodline_items[]confidence

Try it on your own document

Upload an invoice or receipt and see the structured JSON. No signup needed.

Drop your receipt or invoice here

or

PDF, JPG, or PNG · Max 5MB · One document

Demo uploads are limited to 5 MB. Sign in to upload documents up to 10 MB.

Or try a sample: Sample receipt · Sample invoice

Trusted by developers worldwide to automate document workflows.

{
  "success": true,
  "status": "processing",
  "data": {
    "merchant": "...",
    "total": "..."
  }
}
How the extraction works
  1. Read — the document is converted to text with OCR (for images) or parsed directly (for digital PDFs).
  2. Parse — deterministic rules pull out each field and line item and normalize dates and amounts.
  3. Check — the result is scored for confidence: totals are reconciled (subtotal + tax = total), required fields are verified, and formats are validated.
  4. Review — if confidence is below 100, the document is sent for a second pass by an AI model that re-checks only the uncertain fields. High-confidence results skip this step entirely.

Every response includes a confidence score and a needs_review flag, so you always know which results to trust and which to double-check.

Start extracting in minutes

20 documents a month, free. Full API access. No credit card required.

Start for Free — No Credit Card