OpenAPI integration in ToolJet allows developers to connect to any API with well-defined specs. ToolJet simplifies API testing, custom endpoint interactions, and streamlines external service connections for building custom, API-driven applications. With OpenAPI, ToolJet developers automate data retrieval, interact with third-party services, and enhance applications with external APIs. It’s perfect for building dashboards, integrating third-party tools, or creating complex API aggregators.