sevdesk API Integration
Sevdesk is a cloud accounting platform for SMEs and freelancers in Germany and Austria. It covers invoicing, expense management, contacts, and financial accounting with support for German GoBD compliance.
Integrate sevdesk alongside dozens of other accounting and ERP systems through Maesn Unified API.
technology partner
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Have a sevdesk
integration in days
Simple authentication
sevdesk authenticates via API key. Maesn abstracts this behind the same unified auth interface as every other system, so you don't have to worry.
Sandbox included
Maesn provides a sevdesk sandbox so you can start building immediately — no sevdesk account setup required to get going.
One integration, dozens of systems
Once your sevdesk integration is live via Maesn, every other supported accounting and ERP system is immediately accessible through the same API.
How Clockin Got 800+ Integration-Driven Inbound Leads in 2 Weeks
Clockin helps small and mid-sized businesses digitize time tracking. From work hours to project times. User log everything via app or terminal, even offline, eliminating paper-based processes entirely.
"We use Maesn to successfully leverage integrations and partnerships as a key driver for lead generation and expansion into new markets and customer segments. By connecting Clockin to our customers' accounting systems, project data flows directly into their existing tools, ensuring a smooth, reliable data exchange with the systems they already use."
Fabian Ebbert
CSO @ Clockin
One API for sevdesk
and every system that comes after.
Unified. Certified. Production-ready.
Post and pull invoices, bills and credit notes with sevdesk.
Sync invoice and billing data bidirectionally between your product and sevdesk. Create, read, and update invoices, bills, credit notes, and all related line items through one unified API call.
Invoices, bills & credit notes with line items
Bidirectional sync out of the box
Same unified interface as every other system
Webhooks for sevdesk — even without native support.
Sevdesk does not offer webhooks natively. Maesn fills this gap with synthetic webhooks, covering every object and every event in a normalized payload, consistent with every other system in your stack.
Synthetic webhooks for every sevdesk object
Normalized payloads across all systems
Real-time events without native webhook support
Sync contacts, customers and suppliers with sevdesk.
Keep customer and supplier master data in sync between your product and sevdesk. Maesn covers full contact management including create, read, and update operations.
Customers, suppliers & contacts fully supported
Create and update master data in real time
Consistent with every other system in your stack
Become a sevdesk technology partner with Maesn.
Build your sevdesk integration via Maesn and register for the sevdesk partner program to benefit from the ecosystem of one of the elading SMB accounting software for Germany and Austria.
Your app, your name — maximum growth effect
Get official sevdesk partner
Full integration support & co-marketing by maesn
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Everything you need to start your sevdesk API integration today.
The Maesn docs cover every sevdesk endpoint, authentication flow, and implementation detail — plus a full overview of the current coverage, which is continuously being expanded.
Full sevdesk endpoint & authentication documentation
Current coverage overview at a glance
Continuously expanding endpoints & integrations
Get sevdesk partner with Maesn
Get your product and brand name listed at sevdesk,
reaching a large, concentrated base of german and austrian customers directly.
Whitepaper: European ERP & accounting market
Get insights and learn about the most imoportant systems in our country-by-country view of the European ERP and Accounting software landscape.
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3 Reasons why it is better to integrate sevdesk API with Maesn
Webhooks — only with Maesn
Sevdesk doesn't offer webhooks natively. Maesn fills this gap with synthetic webhooks, covering every object and event.
Headless auth, zero friction.
Maesn supports headless auth for sevdesk, letting you authenticate users programmatically without any UI interaction.
Work with a proven partner
Maesn powers sevdesk integrations trusted by hundreds of companies — we know what works.
We are European.
Enterprise-grade security & compliance are our foundation.
Built and hosted in Germany to meet the highest security and compliance standards, Maesn processes API calls in real time without storing customer data and is fully ISO 27001 & GDPR compliant.
Read more in our related blog articles.
Everything you need to know about sevdesk
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Frequently asked
questions
You have more questions? We are looking forward hearing from you - book a meeting now!
What is sevdesk?
Sevdesk is one of the leading SMB accounting platforms in Germany and Austria, offering tools for invoicing, bookkeeping, expense management, and more.
Why should I integrate sevdesk via Maesn instead of directly?
Integrating via Maesn is faster, easier to maintain, and gives you immediate access to dozens of other accounting and ERP systems. Maesn handles authentication, pagination, and all sevdesk-specific implementation details in the background.
Does sevdesk support webhooks?
Sevdesk does not offer webhooks natively. Maesn fills this gap with synthetic webhooks, covering every object and every event in a normalized payload, consistent with every other system in your stack.
What data can I sync with sevdesk via Maesn?
Maesn supports a wide range of sevdesk data, including invoices, bills, credit notes, customers, suppliers, contacts, payments, transactions, open items, journal entries, expenses, offers, purchase orders, and more.
How does sevdesk authentication work with Maesn?
Sevdesk uses API key authentication. Maesn supports headless auth for sevdesk, letting you authenticate users programmatically without any UI interaction, fully integrated into your own product experience.
How do I become a sevdesk technology partner?
There is no upfront approval process or registration required. Build your integration via Maesn and register for the sevdesk partner program once you have onboarded your first users.
How long does it take to integrate sevdesk with Maesn?
Most teams have a working sevdesk integration within days. Maesn provides sandbox access, thorough documentation, and direct support to get you to production fast.
How is my customers' data handled and stored?
Maesn uses HTTPS and TLS for all data transfer. Maesn does not store any customer data. The platform is hosted on Microsoft Azure in Frankfurt, Germany, and is fully GDPR compliant.
What happens if a sevdesk API request fails?
Maesn automatically returns a corresponding error code. You can monitor the status of all requests and resolve errors in real time via the Maesn portal, which provides full request and response logs.