Best practices for building a unified API

Building a unified API can streamline development and reduce maintenance for product integrations, but it's crucial to apply best practices for success. Unified APIs are most effective when multiple APIs within a category share core functionalities and similar data models. Starting with a focused scope and gradually expanding, using an internal data model, and maintaining a clean abstraction are vital steps. While not all integrations should be unified, popular systems may require dedicated API-specific integrations to leverage unique features. Ensuring a robust technical foundation with observability, data validation, and handling common challenges like rate limits and token refreshes is essential. Tools like Nango can aid in developing a unified API infrastructure by providing built-in support for authentication, data syncing, and webhook handling. Unified APIs are not a one-size-fits-all solution, but when implemented thoughtfully, they can significantly enhance development efficiency.