Business tier

API documentation

A simple REST API for CA firms, ERPs, and accounting tools. POST an invoice, receive structured JSON ready to push into Tally, Zoho Books, or your own database. First 5 extractions are free, then ₹15 per invoice. Extraction runs on InvoiceForge servers — your API key authenticates you; OpenRouter/OpenAI keys stay on our side.

Authentication

All requests require a Bearer token. Generate keys from your Developers dashboard.

POST /v1/extract

Send an invoice (PDF, JPG, PNG, WEBP). Max 10 MB. Examples for cURL, PowerShell, CMD, Node.js, and Python.

cURL

curl https://invoiceforge.site/api/v1/extract \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@invoice.pdf"

Response (200 OK)

JSON

{
  "vendor": "Sharma Electronics Pvt Ltd",
  "invoice_no": "INV-2024-0892",
  "gstin": "27AAPCS1234A1Z5",
  "date": "2024-11-15",
  "line_items": [
    { "item": "USB-C Cables", "qty": 20, "rate": 160, "amount": 3200 },
    { "item": "HDMI Adapters", "qty": 10, "rate": 250, "amount": 2500 }
  ],
  "subtotal": 5700,
  "gst": { "rate": 18, "amount": 1026 },
  "total": 6726
}

Billing

First 5 API extractions per account are free.
After that, ₹15 per invoice — deducted from prepaid credits or added to your monthly usage.
If a previous month's balance is unpaid, API access is suspended until cleared.

Manage API keys & billing →

99.4%

Field accuracy on GST invoices

~6s

Average latency per page

1000 rpm

Default rate limit (Business)