Open source cypher projects
Every project in the registry tagged cypher, ranked by real GitHub adoption.
High-performance code intelligence MCP server. Indexes codebases into a persistent knowledge graph — average repo in milliseconds. 158 languages, sub-ms queries
Graphs for Everyone
High-performance graph computing for scalable data analysis
AgensGraph, a high performance transactional graph database based on PostgreSQL
A SQLite extension that adds graph database capabilities with Cypher query language support and built-in graph algorithms.
Related tags
Frequently asked questions
How many open source cypher projects are there?
This registry tracks 5 projects tagged cypher, with 72,159 GitHub stars between them. The most-adopted is codebase-memory-mcp at 48,082 stars.
Are these cypher projects free to use?
Yes — 4 of the 5 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which cypher project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these cypher projects still maintained?
5 of the 5 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.