This document discusses different types of software components in the cloud, including Platform as a Service (PaaS) and Infrastructure as a Service (IaaS). It notes that there are barriers to entry for both app authors and component providers when putting everything in the cloud. The document proposes ways to reduce these barriers, such as allowing no-code integration of APIs in 5 minutes and offering free APIs with traffic limits. It also discusses options for pay-per-use APIs without requiring a merchant account and taking only 10% of API revenue. The document emphasizes that pay APIs are not about converting existing APIs but making things people already pay for more convenient via APIs.