Gather Merge Request related to Pipeline via API

Hello,

It is not possible to to get from a pipeline id to the potential mergerequest id with the current API, without listing each mergerequest manually. From the UI, we can got in the pipeline page, click on the commit and a the mergerequest (if applicable) id is given to the user. Is it possible to access to this feature from the v4 REST API? The UI performs a call to an JSON API: https://gitlab.server/path/to/project/commit/80dda390d116c06e1382390bb0a2ccc604141757/merge_requests.json