API access for programmers to connect QM to other apps is not available yet.
The only API we currently provide is for Zapier integration.
Zapier integration allows Quickmail users to connect with hundreds of apps that are supported by Zapier as well.
You can check this article for a more in-depth guide on how to set up Zapier integration - Zapier Integration
Feel free to send us an email (firstname.lastname@example.org) about your desired integration set up so we may be able to give you directions.