Google Cloud's API management platform for publishing, securing, monitoring, and monetizing APIs. It includes access control (API keys, OAuth), rate limiting, usage analytics, and a developer portal.
In CDL it is associated with application modernization: exposing legacy systems through APIs without rewriting them and building partner ecosystems (for example, Open Banking). Question: expose APIs to partners, control their usage, and charge for access → Apigee.
Apigee is a concept that can show up on the exam. Check the full guide to see it in context.