Organic acids are metabolites of the Krebs cycle mtabolic pathway such as oxaloacetate, isocitrate, malate, fumarate...
Some organic acids are indeed metabolites, not just of the Krebs cycle, but of many other metabolic pathways. Anything that can be processed by an organism, whether for food, storage, detoxification or excretion is technically a metabolite. A metabolite doesn't have to be an acid. A very simple example is acetic acid. When a human ingests alcohol, that is processed in the liver by alcohol dehydrogenase, which converts it to acetaldehyde, which gets oxidized to acetic acid, which can be incorporated in other metabolic pathways.
Metabolism means the processes of demolition and construction, and also the synthesis of some of the security acids within the organism such as humans
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