Finding all GitHub Repo Deploy Keys?

Question

I am trying to add a new SSH key to my GitHub account, but it says the key is already in use. I have hundreds of repos, and I don't want to click through each one to find out which is using this SSH key for deployments. Is there a way to automate this?

Answer 1

My approach to list the deploy keys (not the account-level keys) of all my repos:

for repo in `gh repo list | awk '{print $1}'`;\
  do echo "==== $repo ====";\
  gh repo -R $repo deploy-key list;\
done