Alibaba Qwen3.5 2B

Explain what an API is to someone who has never written code. Do not use a restaurant or waiter analogy. Plain prose only — no headings, bullet points, or markdown formatting. Maximum 50 words.

An API acts like a standard interface between applications. It allows one program to ask another for data securely without writing complex internal connections. This lets software share information freely across the web by connecting servers.

A two-person startup is deciding whether to build their own user authentication or use a hosted provider. Give them a clear recommendation, then the single strongest argument against your own recommendation. Plain prose only — no headings, bullet points, or markdown formatting. Maximum 150 words.

For a two-person startup, I recommend using a third-party hosted authentication provider like Auth0 over building it from scratch because maintaining security infrastructure without specialized knowledge is often a burden that exceeds the team’s capacity. However, the single strongest argument against this recommendation is that if your host provider ever fails or shuts down unexpectedly, you are completely unable to authenticate users without rebuilding or paying extra fees for backup services, which delays critical market entry and increases risk of user data exposure since you lack control over internal logs and audit trails.