OpenAI Agents API
Build and run long-lived cloud agents with OpenAI's managed Codex harness, tools, environments, and subagents.
About
OpenAI Agents API is a public-beta API for building production agents on the managed harness and infrastructure behind Codex. It handles long-running sessions, context management, tool use, subagents, and execution environments while letting developers define the task, model, tools, files, and compute location. Agents can use OpenAI-hosted sandboxes, a team's own infrastructure, or supported sandbox providers.
Data Analysis
September 2026 estimate · Source: Similarweb
259M
Total visits in September 2026
Bounce rate
54.9%
Pages / visit
