You can play Pixelmon MMO by adding the server in the Minecraft launcher.
On Minecraft Bedrock Edition, open the Minecraft launcher or Minecraft app. Go to the “Servers” tab and press “Add Server.” Enter the Pixelmon MMO IP Address mc.pixelmonmmo.comin the “Server Address” and the Pixelmon MMO port 19132 in the “Port.” Then press “Save” and start playing.