cayley

GitHub

An open-source graph database

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Repository: cayleygraph/cayley


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README.md

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!Tests

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

![Get it from the Snap Store](https://snapcraft.io/cayley)

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