Cloud agents, run on OpenAI's Codex harness
OpenAI's managed version of the Codex harness to build cloud agents with one API call instead of your own orchestration. Handles long sessions, smart tool use, and subagents working in parallel. Runs on OpenAI or partner sandboxes. No extra fees beyond token and tool usage. Open source harness, public beta now.
OpenAI Agents API launched on Product Hunt on 2026-09-15 and has 182 upvotes and 2 comments so far.
This tool is open source.