We've invested heavily in design time and API lifecycle tool chain. Why do we need to add yet another platform?

It is a fair question. Teams that have already invested in API design tools, gateways, contract testing, and lifecycle management platforms reasonably wonder whether active runtime monitoring is redundant overhead or genuinely additive.

This video addresses the question directly: what design-time and lifecycle tools do well, what they cannot see by nature, and the specific cases where runtime monitoring produces information that no other layer in the API toolchain can provide.