About this encyclopedia.

Agents API Encyclopedia is an independent English reference for developers exploring the OpenAI agent ecosystem. It is not affiliated with, sponsored by, or endorsed by OpenAI.

Understand your next integration

Explore the relationship between agent runtimes, tools, compute, state, and your application. Read practical examples, compare ownership boundaries, and follow links to official API documentation.

Technical sources

Follow each topic's source links for API fields and account requirements. API access, beta interfaces, pricing, and limits can change. Examples require your own authorized account when executed; this website does not run agent requests or collect API keys.