The hot spot is named 1587 Prime (a nod the duo's jersey numbers) ... but their business partners over at the Noble 33 hospitality group say their involvement goes far beyond that.

Entrepreneur Tosh Berman -- who runs several popular restaurants with Noble 33 -- says Mahomes and Kelce have been "instrumental" with input about the place's concept ... and have shared cool, original ideas to bring to the business.

The two-story, 10,000-square foot eatery -- which will be located inside the Loews Hotel in downtown -- is slated to open in early 2025 ... and it sounds super fancy, with a meat display as the focal point of the whole thing, as well as "hyper-subtle" nods to the Super Bowl champions' on-field accomplishments.

There will also be a massive wine collection, which will be one of the largest in the state.

Mahomes -- who also teamed up with his favorite target by investing in Chicken N Pickle -- spoke about the decision to join forces with Kelce again ... saying, "Travis and I have become frequent visitors of Noble 33 restaurants in other cities so it only made sense to bring something special to our own community in Kansas City."

Kelce added ... "We're excited to be a part of this journey with Noble 33 to create a one-of-a-kind dining experience, and what better place to start than our very own, Kansas City."

The guys are essentially attached at the hip both on and off the field ... and now they got the perfect place to double date with Brittany Mahomes and Taylor Swift!!