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Trusted by winning dev teams
Sync Customer and Supplier
Effortlessly sync bidirectional bills, invoices and customer data between your solution and your customers' Qonto account.
Sync Accounts, Payments and Journal Entries
Effortlessly sync transactions and payments data between your solution and your customers' Qonto account.
Sync Documents as Invoices, Bills or Credit Notes
Sync offers and expenses between your solution and your customers' Qonto account. Use structured data to create documents in Qonto.
"Adding Qonto to our existing integrations was a piece of cake with Maesn. It is a game changer for our customers with all the integration cababilites!"
Juri Preis
CEO @ Smarta
The Maesn difference
Built faster and sell more with Maesn
Stop keeping your engineers busy with building one integration after the other. Focus on your core value: Your product.
Focus on your core product
Engineering focus
Enable your sales team to have what your leads want. Launch a portfolio of integrations in days, not quarters. Accelerate your sales.
Stop losing deals due to integrations
Sales enablement
Integrations reduce churn - dramatically. Increase your customer satisfaction with end-to-end integration to all relevant systems.
Tie your customers for ever
Higher customer retention
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Learn more on Fortnox API
Why companies choose Maesn
3 Reasons why it is better to integrate Fortnox API with Maesn
Secure & Compliant
We have a strong relationship to Fortnox. This ensures that the Maesn API is always up-to-date and any maintenance is covered on our end.
Post & Pull data
Post and Pull data via our REST API and forget about any system specifics or authentication challanges.
Fortnox Sandbox
We provide you with everything you need, so you can focus on what counts.
You can read and write data in Fortnox related to accounts, bank accounts, bills, invoices, credit notes, booking proposals, customer and supplier data, expenses, offers, payments, transactions, balances, journals, journal entries, projects and more. Learn more about how Maesn integrates to Fortnox here.
In comparison to other Unified API vendors, you can always sync data when you want with Maesn. This can be done in real-time using webhooks or in your favorite interval like hourly, daily, weekly etc.
If a request fails, Maesn automatically responds with a corresponding error code. Further information can be found here.
You can monitor the status of your requests and resolve any errors using the Maesn Dashboard, which provides real-time observability and logs for better issue detection.
Setting up a Fortnox integration through Maesn typically takes anywhere from a few hours to a few days, based on the complexity of your use-cases. The greatest thing is, once the integration is implemented, you can access more than a dozen additional accounting integrations, including DATEV, Exact Online, Qonto and Sage.
Maesn uses HTTPS for all data transfer. All connections are secured using TLS with industry-standard, state-of-the-art encryption.
We don't store any of your customer data at Maesn to be 100% GDPR compliant - our platform is hosted at Microsoft Azure in Frankfurt, Germany.Connecting Fortnox via Maesn is faster, easier to maintain and the best thing: you get immediate access to dozens of other financial and ERP systems, while saving months of engineering effort spent on handling OAuth, sandbox quirks, filtering gaps, pagination and compliance edge cases across providers.
FAQ on Fortnox API Integration
