Embedded iPaaS vs Unified APIs: How to Choose in 2026
Blog post from Unified.to
In 2026, the integration infrastructure landscape has evolved with distinct architectural options, particularly in the context of AI agent use cases. Embedded Integration Platform as a Service (iPaaS) solutions have incorporated Model Context Protocol (MCP) servers, but remain fundamentally workflow-based, managing customer-facing integration with stored credentials and workflow states. Conversely, sync-based and real-time unified APIs offer differing approaches; sync-based options cache normalized data for consistent performance, albeit with potential data freshness issues and expanded compliance scope due to data residency. In contrast, real-time unified APIs, exemplified by Unified.to, provide a stateless, pass-through model ensuring current data state and minimizing compliance burdens, albeit with higher per-call latency. This distinction is crucial for SaaS engineering teams when selecting integration infrastructure tailored to their specific needs, such as customer-configurable workflows, bulk data operations, or real-time AI agent interactions.