Merge is an integration platform that simplifies connecting with various software systems by offering a unified API, which allows seamless communication across multiple platforms without dealing with their individual differences. The platform is particularly useful for managing applicant tracking systems (ATS) by enabling users to add candidates to different ATS platforms using a single API call, thereby eliminating the need to manually input data into each system. Merge supports over forty ATSs, including popular ones like Greenhouse, BambooHR, and Workable, and offers SDKs in multiple programming languages, such as Python, Java, and Ruby. The article provides a tutorial on using the Merge Python SDK to add candidates to ATS platforms like Workable and Breezy HR, demonstrating how to set up a demo environment, connect ATS platforms, and execute scripts to add candidates efficiently. By reducing the complexity of data integration, Merge enhances operational efficiency and allows organizations to focus on other critical tasks, making it a valuable tool for businesses seeking to streamline their software integration processes.