Invoicing, automated.
Built for speed.
Generate, dispatch, and track professional invoices in seconds. Our billing engine handles the operational workflow, while smart checkout links reconcile your accounts receivable on settlement.
Send it, then leave it alone
Every invoice comes with a page to pay on, reminders after the due date, and a receipt at the end.
Build it from your catalogue
Save the things you sell once. Pull them onto an invoice with their price already set.
Send a link, not a PDF
Every invoice gets its own page. Your customer opens it and pays on the spot.
Tax and discounts hold still
Add a rate or a discount before you send. Change your rates next year and old invoices keep the numbers they went out with.
Reminders go out without you
Pick the days after the due date. The emails go out on their own, and you never write one.
Paid another way, still recorded
Someone pays you by transfer or in cash. Mark the invoice paid with the reference and the date it arrived.
The receipt writes itself
A paid invoice gets a numbered receipt the moment it closes. Send it again any time they ask.
Headless Operations
API-driven invoicing.
Hook our billing logic directly into your internal tooling. Trigger invoice generation dynamically when milestones are reached inside your core CRM or backend.
- Trigger generation via webhook
- Fetch PDF blobs programmatically
- Inject custom un-structured metadata
curl -X POST https://api.paymonei.com/v1/invoices \
-H "Authorization: Bearer sec_live_xxx" \
-d '{
"customer": "cus_9s6a8x",
"due_date": "2026-04-25",
"line_items": [
{
"price_data": {
"currency": "usd",
"unit_amount": 120000
},
"quantity": 1
}
],
"auto_advance": true
}'
Get your invoices out the door.
Set up an account in minutes. Free to start, and no card to enter.