Is it possible to get commit logs/messages of a remote git repo without git clone

If you are looking to see the last few commits of a branch, try:

git clone -b [branch name] --single-branch [repo url] --depth=3

This will clone only the last 3 commits on the branch you are interested. Once done you can get into the cloned repo and view the history.

There is no way to view a remote log using git log without having a local (cloned) copy. You will need to clone the repository then do what you are wanting. Once cloned, you can then fetch different remotes and do a git log <remote>/<branch>. An alternative method would be to use software on the server that would allow you to view remote git history through some type of service (such as Stash, GitHub Enterprise, etc.)

See Commit history on remote repository

If you'd like to read more about it, this is a great resource: http://git-scm.com/book/en/Git-Basics-Viewing-the-Commit-History

Not the exact, but a way around.

Use GitHub Developer API

1. Opening this will get you the recent commits.

    https://api.github.com/repos/learningequality/ka-lite/commits

    You can get the specific commit details by attaching the commit hash in the end of above url.

2. All the files ( You need sha for the main tree)

    https://api.github.com/repos/learningequality/ka-lite/git/trees/7b698a988683b161bdcd48a949b01e2b336b4c01

I hope this may help.