# JavaDocs

See the [Modules Page](/docs/getting_started/modules.html) for more information on the various modules in HAPI FHIR.

* [Core API](/apidocs/hapi-fhir-base/) - hapi-fhir-base
* [Model API (DSTU2)](/apidocs/hapi-fhir-structures-dstu2/) - hapi-fhir-structures-dstu2
* [Model API (DSTU2)](/apidocs/hapi-fhir-structures-dstu3/) - hapi-fhir-structures-dstu3
* [Model API (R4)](/apidocs/hapi-fhir-structures-r4/) - hapi-fhir-structures-r4
* [Model API (R5)](/apidocs/hapi-fhir-structures-r5/) - hapi-fhir-structures-r5
* [Client API](/apidocs/hapi-fhir-client/) - hapi-fhir-client
* [Plain Server API](/apidocs/hapi-fhir-server/) - hapi-fhir-server
* [JPA Server - API](/apidocs/hapi-fhir-jpaserver-api/) - hapi-fhir-jpaserver-api
* [JPA Server - Model](/apidocs/hapi-fhir-jpaserver-model/) - hapi-fhir-jpaserver-model
* [JPA Server - Base](/apidocs/hapi-fhir-jpaserver-base/) - hapi-fhir-jpaserver-base
* [Version Converter API](/apidocs/hapi-fhir-converter/) - hapi-fhir-converter
* [Server API (JAX-RS)](/apidocs/hapi-fhir-jaxrsserver-base/) - hapi-fhir-jaxrsserver-base
