"It's such a well documented and straight forward API"

– Marc Creutzberg , Lead developer at Fri BikeShop

Born as an API first platform

“There are no differences between the API we use internally and the API our external partners use. Therefore, we are highly focused on maintaining and upgrading our tech stack to ensure that the system and API run as expected.”

– Lasse Melbye, CTO and Co-founder of Customers 1st.

For once build the cool stuff you dream of

Everything is possible with our open API. Customize your commerce experience. Everything is available; you choose what to do.

We are in this boat together. We want to build the winning shopping experiences of the future. We will gladly join and support your journey.

Build your own customer features

Let data flow across platforms in real time and create custom integrations easily.

Create custom inventory management

Our inventory management system is easy to integrate with other systems.

Create specific events using webhooks

We’ve got you covered with webhooks for any event you want data from in the system.

Pick and choose data for your needs

Do you need data for BI in other systems? That is not a problem with our API.

Never miss a beat. Great stability and compliance

We have a strong focus on stability, and we’re proud to share our excellent uptime track record. Our system runs on a multi-location scalable AWS setup with backup and redundancy as its backbone.

"Such a great team to work with"

“We have been working with Customers 1st for four years now. It’s such a well documented api and it just works. Whenever we had any needs or missed something, they have been super quick to implement it. We’ve used Slack for direct communications with their Dev team, who all are very skilled and know what we want.

As a developer and CTO, I can highly recommend their team and platform.”

– Peter Köhn , Lead developer at Flows.systems