James Harden enlisted the Gucci Gang to get over that crushing playoffs loss to the Warriors ... partying his face off with Lil Pump and Smokepurpp in Miami!!
The Beard's Houston Rockets just got booted from the postseason after losing to the Dubs in Game 6 of the Western Conference Semifinals on Friday ... and naturally, Harden jetted to South Beach for some well-deserved R&R.
The Miami rappers -- along with Adrien Broner -- showed off their ice and partied like rockstars while partying through the night at Mokai Lounge.
The guys danced to a bunch of hits -- including "Yes Indeed" by Drake and Lil Baby and "Put a Date On It" by Yo Gotti and Lil Baby.
But, Pump wasn't done partying after hanging with Harden ... moving on to "rent out" a strip club to himself and throwing singles 'til early in the morning.
#ESKEETIT