OpenAI Introduces Managed Agents API for Cloud AI Workflows

OpenAI has introduced the Agents API, a managed service for building and launching cloud-based AI agents. The product is powered by the Codex harness and is designed to handle orchestration, long-running sessions, and tool use without requiring developers to build that infrastructure themselves. OpenAI describes the API as a way to create agents that can continue working across extended tasks while interacting with tools as needed. The accompanying official video introduces the service alongside the product announcement. The release extends OpenAI’s developer platform beyond simple model calls toward managed agent execution, where applications can coordinate multi-step work over time. It targets developers who want to deploy persistent cloud agents while relying on OpenAI to operate more of the underlying runtime and orchestration layer.

OpenAI, News – Introducing the Agents API – 10th September 2026