There are several types of APIs with different scopes, benefits, and intended audiences. They can be categorized by audience as Public APIs, Partner APIs, Internal APIs, and Composite APIs. Public APIs are open to developers with minimal restrictions, while Partner APIs are for strategic business partners and require specific entitlement. Internal APIs are hidden from external users and only exposed within the company. Composite APIs combine multiple data or service APIs and are useful in a microservices architecture. Additionally, there are Data APIs, Internal service APIs, External service APIs, and User experience APIs, each serving different purposes. The text also mentions the growing importance of AI APIs and predicts the emergence of new approaches to interaction in 2024.
Source Axway
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