Neo4j 1.9.8 API

Graph database

org.neo4j.graphdb	The core graph database API.
org.neo4j.graphdb.config	Configuration.
org.neo4j.graphdb.event	Event framework.
org.neo4j.graphdb.factory	Create database instances.
org.neo4j.graphdb.index	Integrated API for node and relationship indexing.
org.neo4j.graphdb.traversal	Traversal framework.

Query language

org.neo4j.cypher.javacompat

Execute Cypher queries from Java code.

Graph algorithms

org.neo4j.graphalgo

Scalable graph algorithms like shortest path and others for Neo4j which can be easily accessed via GraphAlgoFactory.

Management

org.neo4j.jmx

Management support using JMX.

Management (Enterprise edition)

org.neo4j.management

Advanced management support using JMX.

Tooling

org.neo4j.tooling

Import

org.neo4j.unsafe.batchinsert

Tools for high-performance data insertion; make sure to read the instructions before using.

Server Plugin API

org.neo4j.server.helpers
org.neo4j.server.plugins
org.neo4j.server.rest.repr
org.neo4j.server.rest.web

Helpers

org.neo4j.helpers	Common Java utilities.
org.neo4j.helpers.collection	Collections utilities - Iterator/Iterable utilities and creating Maps.

Backup (Enterprise edition)

org.neo4j.backup

Legacy Indexes

org.neo4j.index.lucene	Contains QueryContext and ValueContext which is part of the public API for an Index backed by Lucene.
org.neo4j.index.lucene.unsafe.batchinsert

Graph matching

org.neo4j.graphmatching	Facilities for finding occurrences of patterns in a Neo4j graph.
org.neo4j.graphmatching.filter	Filters that allow you to filter out based on properties on nodes and relationships.

Other Packages

org.neo4j.kernel	Implementation for embedding a Neo4j graph database in an application.
org.neo4j.kernel.extension
org.neo4j.kernel.lifecycle
org.neo4j.kernel.monitoring