Use Case

Accounts Payable Automation with Invoice Parser API

Automate your accounts payable workflow by parsing vendor invoices into structured JSON. Extract invoice ID, vendor, due date, total, tax, and line items — then feed directly into AP approval and payment systems.

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Who this is for

This use case is for developers building accounts payable software, finance automation tools, or ERP integrations where vendor invoices need to be extracted and routed without manual data entry.

Accounts payable software

ERP invoice intake modules

Finance automation tools

Internal AP portals

AP automation workflow

Invoice → structured JSON → AP record → approval workflow

STEP 1

Receive vendor invoice

Invoice PDF arrives via email, upload portal, or storage bucket.

STEP 2

Parse with DocuParse API

Send the invoice to the extraction endpoint. Receive named fields.

STEP 3

Receive invoice JSON

Get vendor, invoice ID, due date, total, tax, and line items.

STEP 4

Create AP record

Create an AP entry and trigger your approval or payment workflow.

Fields extracted for AP automation

Vendor / merchant

Supplier name for vendor matching and routing

Invoice ID

Unique invoice number for duplicate detection

Invoice date

Date of invoice issuance

Due date

Payment due date for scheduling and overdue tracking

Total

Amount due for payment authorization

Tax

Tax amount for compliance and deduction tracking

Subtotal

Pre-tax amount for expense reporting

Currency

Currency code for multi-currency AP systems

Line items

Itemized services or products for GL coding

Code example

Parse invoice and create AP record

When a vendor invoice arrives, call DocuParse API to extract the fields, then create an AP record and trigger your approval workflow.

// Process an incoming vendor invoice for AP workflow
async function processInvoice(invoiceFile) {
  const form = new FormData();
  form.append('file', invoiceFile);

  const res = await fetch('https://docuparseapi.com/api/v1/extract', {
    method: 'POST',
    headers: { 'Authorization': 'Bearer YOUR_API_KEY' },
    body: form,
  });

  const invoice = await res.json();

  // Create AP record and trigger approval workflow
  const apRecord = await db.invoices.create({
    vendor: invoice.merchant,
    invoiceNumber: invoice.invoice_id,
    invoiceDate: invoice.date,
    dueDate: invoice.due_date,
    amount: parseFloat(invoice.total),
    tax: parseFloat(invoice.tax),
    currency: invoice.currency,
    lineItems: invoice.line_items,
    status: 'pending_approval',
  });

  // Trigger approval notification
  await notificationService.sendApprovalRequest(apRecord);
}

Sample response

{
  "success": true,
  "document_type": "invoice",
  "merchant": "Acme Software LLC",
  "invoice_id": "INV-2026-0441",
  "document_id": "INV-2026-0441",
  "date": "2026-05-01",
  "due_date": "2026-06-01",
  "subtotal": "2400.00",
  "tax": "240.00",
  "total": "2640.00",
  "currency": "USD",
  "line_items": [
    {
      "description": "Annual software license",
      "quantity": 1,
      "amount": "2400.00"
    }
  ],
}

Frequently asked questions

How does invoice parsing help with accounts payable?

Invoice parsing extracts structured fields — vendor, invoice ID, due date, total, tax, and line items — from incoming vendor invoices. These fields can feed directly into AP systems for automated data entry, approval routing, and payment scheduling.

Can it extract due dates for payment scheduling?

Yes. DocuParse API extracts both the invoice date and due date, which are critical fields for AP payment scheduling and overdue tracking.

Does it work with PDF invoices from different vendors?

Yes. DocuParse API handles varied invoice layouts without requiring per-vendor template configuration. It processes PDF, JPG, PNG, and CSV files.

Can I route extracted invoices to an approval workflow automatically?

Yes. Once you have the structured JSON, you can trigger approval workflows based on any field — amount thresholds, vendor names, or due dates — using your existing workflow tooling.

Start automating accounts payable