Currently, there's no way to link an external app issue such as a Jira story to a Qase test run via the API.

An example use case being an option to specify the associated Jira ticket for an automated test run, say in the form of an environment variable or CLI option.

A suggested is to include the Jira defect link in the run’s description, which is already a parameter in the endpoint. Since the description field supports Markdown, the link could be formatted as follows:

But, it would be better to have the link defined in the designated feature for consistency.