API testing

What you really need to build an API sandbox

Integration is the most dangerous phase of the API lifecycle. Learn the infrastructure requirements for building a true API sandbox that validates stateful business logic, not just HTTP contracts.

By Adam AltmanApril 24, 2026

The sandbox reality check

Organizations want org-level sandbox environments for thousands of APIs. Here are the proven patterns that work at scale—and why they require platform building blocks, not just automation.

By Adam AltmanJanuary 13, 2026