HQ | Developers

Everything you need to build delightful integrations around the HQ

HQ developers portal


Easily expand your process beyond the HQ

While the HQ beautifully manages most core agency and consulting project processes, there is so much more you can do in combination with your other favorite tools. Developers use our API to connect almost anything: time trackers, task management, invoicing, you name it. Or just go ahead and build something new! Here you should find all the developer resources you need.

Open REST Api for the HQ


The HQ API is a powerful REST/ OData interface to both data and logic of the HQ. Retrieve data, query entities or trigger workflows from your client application.

SDK for faster HQ development


Our C# SDK makes it even easier to integrate with the HQ. The SDK provides convenient access to entities and features of the API. View on GitHub...

Complete documentation of HQ coding guidelines


Our developer guides contain all resources you'll need for you HQ apps. It includes a public forum and complete API docs.

Webhooks for advanced automation


Want to get notified of changes in the HQ instead of polling our API? Use powerful web hooks to receive notifications about created, updated and deleted entities. Coming soon.

Developer forum


The developer forum gives you the help you need to get your HQ integration started. Need help with a query? Visit the forum and we'll find a solution for you.

Examples for developers


To get you started even faster, we created examples for you in different languages and frameworks. Need a different language? Post in the forum! Coming soon.


How our customers have integrated their apps with the HQ


The HQ is already connected to your favourite tools

You don’t have to reinvent the wheel when it comes to important integrations to tools like JIRA, Exchange, Office365 and DATEV. Just use our pre-built connectors to get your process up and running in minutes.

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