Best unified API platforms to consider in 2025

Unified APIs offer a simplified integration solution for AI agents or SaaS products by providing a single interface to interact with multiple underlying APIs, thus streamlining the process of integrating with external systems. These platforms are particularly beneficial for shallow integrations across many APIs or for creating custom APIs tailored to specific product needs. The text analyzes several unified API platforms available in 2025, each with its strengths and weaknesses. Nango is highlighted for its custom unified API capabilities, allowing full control over data models and integration logic, suitable for complex use cases. Kombo, Merge, Apideck, and Unified.to are also discussed, each offering varying degrees of pre-built integrations and customization options, with specific focuses such as HRIS or e-commerce. The choice of platform depends on the specific integration requirements, the need for customization, and the level of control desired, with core product integrations often necessitating a more bespoke approach.