Our crockpot brings any contents to a good boil on the high setting.
All Phaseolus vulgaris beans contain the toxin, the red kidney the highest, but the high setting will destroy the worst of it, rendering them safe for the most nervous Nellies.
Pinto beans belong to the same species.

A stray thought- the camp cook or cocinero who cooked the dry beans for cowboys on cattle drives used dry beans, and often undercooked them.
Did the cowboy yodel develop from the painful yelps of poisoned cowboys?