What is Moloni ON?
Moloni ON is a billing and invoicing software by Moloni. It helps businesses manage invoices, receipts, products and customers - handling everything from simple invoicing to complex multi-warehouse and multi-company setups.
Moloni ON exposes a GraphQL API that allows you to integrate directly with your billing data. Whether you need to automate invoice creation, sync product catalogs, pull financial reports or build custom workflows, the API provides full programmatic access.
Getting API Access
You can create API Clients (for OAuth 2.0 web app flows) or API Keys (for machine-to-machine integrations) at any time via the Account → API page. No additional add-ons are required; endpoints that are not company-specific are available immediately.
To access company-related endpoints, you will need the API Access add-on enabled for your specific Moloni ON company.
About these docs
This site contains three main sections:
- Guides — Step-by-step tutorials covering authentication, product management, document creation, pagination, filtering, and more.
- API Reference — Auto-generated documentation for every query, mutation, type, input, enum, and scalar in the GraphQL schema.
- Explorer — An interactive GraphiQL interface to write and run queries against the live API directly in your browser.