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TARGET_SYSTEM: snelstart Snelstart is a Dutch cloud-based accounting software that helps small businesses and accountants manage bookkeeping, invoicing, and financial administration.
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
= Not supported by Maesn at this time
= Not supported by Snelstart

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How to connect to Snelstart

To set up an integration with Snelstart, you’ll need two keys: a Connection Key and a Subscription Key.
1

Prerequisites

Before you begin, make sure you have the following:
2

Retrieve the Connection Key

  1. Go to the Snelstart login page and sign in with your credentials.
  2. In the left sidebar, click “Koppelingen” (Links).
  3. Under “Koppelingen”, find “Maatwerk” (Custom integration) and select it.
  4. Click “Koppeling instellen” (Set up connection), agree to the scopes, and save your Connection Key somewhere safe.
3

Retrieve the Subscription Key

  1. Visit the Snelstart Developer Portal and log in.
  2. If you don’t already have an active subscription, navigate to Products and select a suitable plan (you can start with Ontwikkeling & Test – development and testing).
  3. Choose a name for your subscription, agree to the terms, and subscribe.
  4. Once your subscription is created, go to your Profile and copy one of your two Subscription Keys (the Primary Key is recommended).
4

Set Up maesn Connect

  1. Contact your maesn representative and provide the following information:
    • Your Snelstart Subscription Key
  2. In maesn Connect, paste your Connection Key into the API Key field and click Submit.
  3. If the key is valid, the connection will be established and a confirmation message will appear. Your Snelstart account is now successfully connected!

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Becoming a Snelstart Partner

To use the Snelstart API in production, you must become an official Snelstart Partner. Once approved, your application gains access to live customer environments (beyond the default test company). For detailed instructions and partner requirements, visit the Snelstart Developer Portal.