OpenAI launches Agents API to run the Codex harness as a managed service
The public beta manages context and subagents while letting developers use OpenAI, partner, or self-hosted sandboxes.
By Ryan Merket · Published
Primary source: OpenAI Developers on X
Why it matters
OpenAI is turning the software around its models into a managed platform, competing for the orchestration and compute spending that agent startups currently capture.

OpenAI launched the Agents API on September 10th, putting the harness and cloud infrastructure behind Codex into a managed service for developers building long-running agents.
https://x.com/OpenAIDevs/status/2098130570048045453
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