Unleash the Power of Paychex APIs Open up a world of possibilities for your business with direct access to our APIs See available APIs Use cases Check out real world scenarios for using our APIs Documentation Explore our library of APIs and use them to automate, standardize and simplify Paychex integrations Developer Resources Connect better by learning from simple code and answers to frequently asked questions News Tune into updates, tutorials, latest trends and happenings in Paychex side Try our available integrations Everything you need, connected. Get started