It is anticapitalist by nature in that capitalism is a system where a person can own the means of production and use that ownership to acquire profits. That ownership is a form of domination and creates an arbitrary hierarchy, who makes all the decisions: the owner, why do they make all the decisons: because they had the wealth to buy the company.

You can have organization and markets though without capitalism, such as with anarcho-syndaclism. Basically you have a bunch of coops that are run and controlled by elected workers councils that can trade with each other voluntarily.