List installed cocoapods and versions

EDIT: As stated in @DougAmos' answer you should check your Podfile.lock to see this information using cat Podfile.lock

This doesn't currently exist in CocoaPods. Personally I would just do a cat Podfile to learn about what the project was including. I would suggest you create an issue (or even better a pull request) on the main repository about this!

I developed a little script

llpod

available here.

Nevertheless, up until now I listed pods with cat:

cat Podfile.lock

And refine search with grep:

cat Podfile.lock | grep Alamo

pod outdated lists installed pods with version numbers and the latest versions available.

From the root directory of your project:

cat Podfile.lock

(I know this has been mentioned in a comment, but this should be an answer in it's own right)