Getting it all together haaaalp meh please

I recently got my MPC X SE and I am trying to run a few other instruments through it.
I will be running a mini freak, a Hydrasynth, a roland tr6 s, and a microphone.
I am playing through a pair of Krk rokit 8 monitors.
I am just a bit confused as to what I may need in order go make this vison of mine come true.
Will I need a mixer or can i just run everything through the mpc x?
I do not plan to use the synths to control the mpc but rather to play through it so that i may record any of these instruments on the mpc at any given time.
I know I may be coming off a bit of a noob here but any advice would help. I need to know what cords to get and how many. If i need a mixer. Whatever it is that i need. Thank you so much in advance.

yeah, a mixer is the best solution. you hook up all the instruments to it, then use some outputs from the mixer (be it aux sends or better a group out or bus) and hook it up to the mpc inputs, so when you want you can record sounds from one or more instruments directly in the mpc (sampler or audio track or even the looper).

Another option would be to get a USB soundcard like a UMC1820, then you will have 8 inputs instead of 4, and mix everything inside the MPC.