This code system http://hl7.org/fhir/capability-statement-kind defines the following codes:

CodeDisplayDefinitionComments
instanceInstanceThe CapabilityStatement instance represents the present capabilities of a specific system instance. This is the kind returned by OPTIONS for a FHIR server end-point.
capabilityCapabilityThe CapabilityStatement instance represents the capabilities of a system or piece of software, independent of a particular installation.Elements marked as 'optional' represent configurable capabilities
requirementsRequirementsThe CapabilityStatement instance represents a set of requirements for other systems to meet; e.g. as part of an implementation guide or 'request for proposal'.