I've installed memcache and now how do I really view the data in memcache?

Is there any way to see the data present in cache inside memcache?

How do I really know whether memcache is getting data stored inside it?

Note: I don't want to write any program to see the data inside memcache. Basically, memcache server is already installed in my environment and it is caching the data as well. But I would like to know if there are any utility programs available which will show me the cached data inside memcache or if there is any command which will show me the data cached so far.