Introducing the Agents API
The Agents API exposes a managed Codex-based harness for orchestration, long-running sessions, and tool use, reducing the agent runtime a builder must operate directly.
The **Agents API** is a managed service for building and launching cloud agents. It uses the **Codex harness** for orchestration, long-running sessions, and tool use.
Builders should compare this managed runtime with their current agent loop, especially where session continuity and tool orchestration create operational work outside the application itself.
The **Agents API** is a managed service for building and launching cloud agents. It uses the **Codex harness** for orchestration, long-running sessions, and tool use. Builders should compare this managed runtime with their current agent loop, especially where session continuity and tool orchestration create operational work outside the application itself. The material does not specify supported tools, persistence guarantees, pricing, deployment controls, or failure behavior, so the operational boundary remains unclear.
This places Codex’s harness behind a managed cloud-agent boundary, potentially removing application-owned work around long-running sessions and tool orchestration. It confirms a wider move toward hosted persistent runtimes, while sharpening the unresolved build-versus-buy boundary: persistence, permissions, portability, failure recovery, and deployment control remain unspecified.