This JIRA openAPIv3 ist created for including the JIRA-API into an API-Gateway. As I could not find any OpenAPI descriptions I did create one for my project. I used this documentation:
This API-description is not meant to be the full API or without any mistakes. But anyway shared to the OpenSource Community, as for my point of view still might saves some time by not creating the whole API-Description :)
If you extend this API-description, or fixing mistakes, please share your work, as others might also appreciate your work