cayleygraph/cayley repository overview

Cayley is an open-source database for Linked Data⁠. It is inspired by the graph database behind Google's Knowledge Graph⁠ (formerly Freebase⁠).

⁠Documentation⁠

⁠Features

• Built-in query editor, visualizer and REPL
• Multiple query languages:
  • Gizmo⁠: query language inspired by Gremlin⁠
  • GraphQL⁠-inspired query language
  • MQL⁠: simplified version for Freebase⁠ fans
• Modular: easy to connect to your favorite programming languages and back-end stores
• Production ready: well tested and used by various companies for their production workloads
• Fast: optimized specifically for usage in applications

⁠Performance

Rough performance testing shows that, on 2014 consumer hardware and an average disk, 134m quads in LevelDB is no problem and a multi-hop intersection query -- films starring X and Y -- takes ~150ms.

⁠Community

• Website: cayley.io⁠
• Slack: cayleygraph.slack.com⁠ -- Invite here⁠
• Discourse list: discourse.cayley.io⁠ (Also acts as mailing list, enable mailing list mode)
• Twitter: @cayleygraph⁠
• Involvement: Contribute⁠