Does the Missouri bar have reciprocity with other states?

Yes. To find out which states with which Missouri has reciprocity, see the Missouri Bar Examiners website: www.mble.org. Note that most states which have reciprocity with other states require that a person seeking reciprocity go through a specific process and that they have served as a licensed attorney in the other state for a pre-determined period of time. Best bet is to call the state bar you wish to practice in.