Invoices your customers can pay on their phone.

Create an invoice with line items and tax, attach a payment link, and send it. Your customer opens it and pays with the method they already use.

Create an account API reference

What it does

Issue an invoice and collect against it by mobile money, card or PayPal.

Line items, tax and a due date, emailed to the customer with a payment link attached. The customer pays on the hosted checkout and the invoice is marked paid.

Line items and tax

Up to 50 items per invoice, with quantities, unit prices and a tax amount.

A payment link on every invoice

Ask for one when you create the invoice and the customer can pay straight from it.

Sent by email

Branded email with the invoice and a calendar reminder for the due date.

How it works

01
Create
Customer, items, currency and due date, in the dashboard or over the API.
02
Send
The customer gets the invoice by email with a pay button.
03
Collect
Payment on the hosted checkout marks it paid and credits your balance.

invoice

curl https://api.ultraner.com/v1/invoices \
  -H "X-API-Key: uk_test_..." \
  -H "Content-Type: application/json" \
  -d '{
    "customer_name": "Amani Traders",
    "customer_email": "accounts@example.com",
    "currency": "TZS",
    "items": [{ "description": "Website design", "quantity": 1, "unit_price": 750000 }],
    "due_date": "2026-11-30",
    "create_payment_link": true
  }'

Sandbox keys start with uk_test_ and never move real money.

Pricing

What it costs

Collecting

0% Ultraner fee

The gateway's own processing fee may apply. You choose who absorbs it, you or your customer.

Settling to your bank

3% US, 4% elsewhere

Settlement works to your own bank account, in any country. The extra 1% outside the US is the international transfer.

Built for

Agencies and studios
Suppliers billing shops
Consultants
B2B sellers

API reference

Questions

Are automatic reminders included?

Not yet. Reminder schedules, late fees and partial payments are planned as Invoice Pro.

Start with Ultraner Invoices.

Create an account All products