Availability : Open Source.

Written in : Java.

Supported Programming Language: .Net, C, C++, Java, JavaScript, PHP, Python, Ruby.

It supports the Blueprints and RDF/SPARQL APIs, which is an ultra-scalable, high-performance graph database.

It allows the processing up to 50 Billion edges on a single machine.

Native graph database with High Performance.

Apache TinkerPop API or RDF/SPARQL.

Single machine data storage to ~50B triples/quads (RWStore).

REST API with embedded and/or webapp deployment (NanoSparqlServer).

Reusable named subqueries.