Access to multiple private repo



I am running fastlane match (git) on Circle CI and requires read on an extra certificates repo.

What I did:
I added a Checkout SSH key with a machine user as outline in the documentations but had access error to my repo. The machine user had the correct repo access (later I tried giving it admin access). The access error persisted. I followed the steps in

After looking at multiple discussions, nothing seemed to worked, most of the post just refers back to the documentation


Turns out that I have been using https endpoint for git instead of ssh. which causes username and password to be prompted. Now it works!