How many Agamas? And did all Agamas come from Bhagwan Shiv?

I was reading about Agamas on Wikipedia to know about them. And there they mentioned that there are 24 Shaiv Agamas, 64 Shakta Agamas and 108 Vaishnav Agamas. But they also talked about Trika and that there are 64 Bhairav Agamas. Now that made me confused because Trika Bhairav Agamas were identified separately, but officially they called for 64 Shakta Agamas.

Are Bhairav Agamas and Shakta Agamas essentially same books? Or different sets?

(Before you criticize me, yes I read Wikipedia because it gives centralised, but I don't take it as my primary source of info, so hence I'm confirming information by asking here as well)