
Description: GraphStack.io is an open-source platform for building knowledge graphs and executing graph queries. It allows importing data from various sources, defining ontologies, and exploring connections in the data.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: AllegroGraph is a high-performance graph database optimized for storing and querying RDF triplestores. It provides support for Sparql queries, geospatial data, and other advanced features for knowledge graph applications.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API