Summary

Alongside the OpenAI Agents SDK and Agents API launch on September 10, 2026, E2B shipped a native integration that runs agent sessions inside isolated E2B sandboxes with full filesystem, terminal, and network access. Agents can keep temporary workspace state across steps, produce reviewable artifacts, and run many sandboxes in parallel; sandboxing is supported first in the Python Agents SDK.

What changed

E2B released a native OpenAI Agents SDK integration that lets SandboxAgent instances run inside isolated E2B sandboxes with filesystem, terminal, and network access, parallel sessions, and persistent per-run workspace state, starting with the Python SDK.

Why it matters

Managed agent runtimes still need a secure place to execute code, and becoming an OpenAI launch partner positions E2B as a default execution layer for long-running agents. It intensifies competition among agent sandbox providers as orchestration moves to managed APIs.

Evidence excerpt

E2B provides a native integration that lets you run SandboxAgent instances inside isolated E2B sandboxes, giving agents full filesystem, terminal, and network access, with E2B supporting OpenAI as a launch partner.

Sources