Quick Start
Create your first invoice in under 5 minutes
API Reference
Explore the full REST API
AI Invoice Creation
Let AI draft your invoices from plain text
Webhooks
React to invoice events in real time
Get Started
1
Create your account
Sign up at invoice.horizonpay.co or create your first invoice as a guest — no account required to start.
2
Set up your business profile
Add your business name, country, and currency. Invoice AI auto-selects your currency based on your location.
3
Create your first invoice
Use the invoice builder or type a plain-English description like “Invoice Acme $5,000 for brand design” and let AI fill in the details.
4
Send and get paid
Finalize your invoice to assign an invoice number, then share the PDF link or email it directly to your client.
Explore by Topic
Invoices
Lifecycle, statuses, and numbering
Customers
Manage your client list
Products & Prices
Build a reusable catalog
Business Profile
Configure your business details
API Keys
Authenticate API requests
Email Invoices
Send invoices to clients