Is there any API that allows to install an apk in Android?

I want to build an app able to install apps in any Android Device from my PC, I know about adb terminal application..and I could build some kind of an interface for it, but I have been trying to find any api release that allows me to do the same thing without calling to adb.exe. I dont care if is in java or any other language...anyone knows?

Solution

I do not think that an api exists. ADB is a client-server program that includes three components: a client, a server and a daemon, so (I think) it's not too easy to create an api. You must take into account that the ADB is the best option, and maybe you can develop a frontend (Eg: http://forum.xda-developers.com/showthread.php?t=970348 )

But if you are just trying to install xpi:

WHy don't you upload your app to Google Play or alternatives?
Also you can copy the app to your phone and install it via Install File Manager or (you need to install it first)
Try something similar to http://www.apkinstall.com/