You can use API management software to organize a catalog of APIs for use by developers and AI agents; manage relationships between producers of APIs and their human and agentic users; and create new API-based products, business models, and agentic processes. But to realize these benefits, you’ll first have to select from a diverse set of vendors that vary by size, type of offering, geography, and use case differentiation. IT leaders should use this report to understand the value they can expect from an API management software vendor, learn how vendors differ, and investigate options by size and market focus.