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Tellra

APIs & integrations

Connect your systems – stop doing things twice

Every time someone types the same customer into two systems, copies an order into the books or forwards a booking by hand, it takes time and goes wrong. We build the connection that does it automatically.

Right for you if

  • you re-key orders or bookings into your accounting
  • you want a form on your site to land in your CRM, calendar or a Google Sheet
  • you want to sync customers, products or stock between two systems
  • you have a system with an API that nobody has connected to anything

Systems we work with

  • Fortnox and Visma via their APIs – customer-specific connections
  • Booking systems and calendars (Google Calendar, Microsoft 365)
  • Google Sheets, email, SMS
  • CRM and email tools with open APIs
  • Webhooks and custom REST APIs between your systems

Price

Fixed price after a short call.

In the call we go through which systems need to talk and what should happen. Then you get a fixed price. You own the code, and the integration runs on your own Vercel or server account.

Honest about tools like Zapier

For a simple connection – a new form response becomes a row in a sheet – Zapier or Make for a few hundred SEK a month is often enough, and we will say so. A custom integration is right when volume is high, when the logic is specific, or when monthly fees start to cost more than a one-off build.

Common questions

Are you a Fortnox partner?
No. We build customer-specific connections through the Fortnox developer portal, which does not require partnership. You need an integration licence on your Fortnox account.
What does an integration cost?
A simple one-way connection is a small project; a two-way sync with error handling is a larger one. We always give a fixed price before we start.
What happens when one of the systems changes its API?
With the maintenance plan we keep the connection running. Without it we quote a fixed price for the update when needed.

Tell us what you need

Write a few lines or call. We reply within 24 hours on weekdays.

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