A unified API and an embedded iPaaS are two integration tools that serve to simplify SaaS app integrations, yet they operate differently and cater to distinct needs. A unified API consolidates multiple APIs within a single software category, like HRIS, into one endpoint, streamlining development by abstracting the complexities of individual APIs and normalizing data schemas. This approach is optimal for creating broad, standardized integrations within a single app category. In contrast, an embedded iPaaS offers flexibility for building complex, configurable integrations across various software categories, accommodating uncommon or vertical-specific apps through custom connectors. While unified APIs are generally easier to implement and require less development effort, embedded iPaaS allows for greater customization and customer self-service, including workflow automations. The choice between the two depends on the complexity of the integration needs, the technical expertise available, and whether the focus is on speed to market or long-term flexibility. Some companies may adopt a hybrid approach, using unified APIs for standard integrations and embedded iPaaS for more complex requirements.