Wumex Billing

Send invoices directly to your customers

With Wumex Billing, send invoices via our API — your customers receive them in the Wumex app with push notifications, automatic categorization, and payment tracking.

How it works

Digital invoicing in three simple steps

API Integration

Integrate our REST API into your existing system in just minutes.

Send invoices

Send invoices to your customers' email addresses — automatically and reliably.

Real-time status

Receive notifications when invoices are delivered, opened, or paid.

Transparent pricing

Choose the plan that fits your business

Get started free

Free

CHF 0/ month

50 invoices / month
Email matching
Push notifications
Status tracking (delivered, opened, paid)
REST API access

Recommended

Pro

CHF 49/ month

500 invoices / month
Everything in Free, plus:
Priority support
Webhook notifications
Advanced analytics

For companies

Business

CHF 199/ month

5,000 invoices / month
Everything in Pro, plus:
Custom branding (logo on invoices)
Dedicated account manager
SLA 99.9% uptime
Batch import (CSV)

Custom

Enterprise

Custom pricing

Unlimited invoices
Everything in Business, plus:
Custom API limits
Custom SLA agreement
White-label option
Personal onboarding

Register now

Fill out the form and we'll get back to you within 24 hours.

Frequently asked questions

What is Wumex Billing?

Wumex Billing is an API-based solution that allows businesses to send invoices digitally to their customers. Customers receive invoices in the Wumex app with push notifications and can track payment status in real time.

How does the API integration work?

Our REST API can be integrated in just minutes. You'll receive API keys and comprehensive documentation. Invoices are sent via POST request to our endpoint and automatically delivered to the recipient. Find all details in our API documentation.

Is the Free plan really free?

Yes, the Free plan is permanently free. You can send up to 50 invoices per month at no cost. There are no hidden fees.

How are my customers notified?

When an invoice is sent via the API, the customer receives a push notification in the Wumex app. The invoice is automatically categorized and displayed in the customer's billing section.

What does the Business plan offer?

The Business plan is designed for companies with high invoice volumes. It includes up to 5,000 invoices per month, custom branding with your logo, a dedicated account manager, 99.9% uptime SLA, and batch import via CSV.

How does the Enterprise plan work?

The Enterprise plan is tailored to your individual needs. It offers unlimited invoices, custom API limits, a custom SLA agreement, white-label option, and personal onboarding. Contact us for a customized offer.

Ready to get started?

Start with Wumex Billing today and digitize your invoicing.