These are all evolving technologies and it's pretty evident that the big AI labs are trying different things to see what sticks. Some of it does and they keep evolving it.
The reason MCPs are so powerful are less a technological advantage over other tools and more how ridiculously easy they are to install and use.
Also given it's an official standard now (AAIF), it's easy for sharing across differently agent harnesses and tools.
Those are the two main reasons imho, they are still a mainstay.
If you'll allow some shameless plugs, my co-host and I talk about it in our podcast:
The reason MCPs are so powerful are less a technological advantage over other tools and more how ridiculously easy they are to install and use.
Also given it's an official standard now (AAIF), it's easy for sharing across differently agent harnesses and tools.
Those are the two main reasons imho, they are still a mainstay.
If you'll allow some shameless plugs, my co-host and I talk about it in our podcast:
https://fragmentedpodcast.com/episodes/302/