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TARGET_SYSTEM: sevdesk
ReadCreateUpdateDeleteWebhook
Accounts
Async task
Bank accounts
Bills
Bill lines
Booking proposals
Contacts
Customers
Credit notes
Dimensions
Expenses
Files
Goods receipts
Goods receipt lines
Invoices
Invoice lines
Items
Journals
Journal entries
Offers
Offer lines
Open items
Payments
Payment terms
Projects
Purchase orders
Purchase order lines
Sales orders
Sales order lines
Suppliers
Tax rates
Transactions
Trial balance
Units
Users
Vendor credits
= Supported by Maesn
= On demand - contact us
= Not supported by sevdesk

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How to connect to sevdesk

As a customer of sevdesk, you can easily retrieve the API key used for connecting to your sevdesk accounting data.
1

Prerequisites

Before you begin, make sure you have the following:
  • A sevdesk account with administrator permissions to retrieve the API key.
2

Retrieve the API key

Navigate to the sevdesk login page.Log in to sevdesk using your account credentials and retrieve the API key.
3

maesn Connect setup

Paste your sevdesk API key in to the ‘API key’ field in maesn Connect and press ‘submit’. If the API key is valid, the connection will be established and a success message will be displayed.Your sevdesk account is now connected!

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Becoming a sevdesk Partner

Anyone can develop an integration and become a sevdesk technology partner. The requirements and steps to become a partner are detailed here (in German only). Essentially, there is no approval process or registration required. Simply build the integration with maesn’s unified API and register for the sevdesk partner program once you have onboarded your first ten users.
Last modified on January 27, 2026