High-performance code intelligence MCP server. Indexes codebases into a persistent knowledge graph — average repo in milliseconds. 158 languages, sub-ms queries, 99% fewer tokens. Single static binary, zero dependencies.

Graphs for Everyone

High-performance open-source in-memory graph database for GraphRAG, AI memory, agentic AI, and real-time graph analytics. Cypher-compatible, built in C++.

Embedded property graph database built for speed. Vector search and full-text search built in. Implements Cypher.

小型金融知识图谱构建流程（neo4j / python / cypher / KG）

利用网络上公开的数据构建一个小型的证券知识图谱/知识库

A graph database as a Redis module

Neo4j + vis.js = neovis.js. Graph visualizations in the browser with data from Neo4j.

TuGraph: A High Performance Graph Database.

Neo4j GraphRAG for Python

Neo4j Bolt driver for Python

Specification of the Cypher property graph query language

[RETIRED] Neo4j graph database driver (REST API client) for Node.js

Nornicdb is a distributed low-latency, Graph+Vector, Temporal MVCC with all sub-ms HNSW search, graph traversal, and writes. Using Neo4j Bolt/Cypher and qdrant's gRPC means you can switch with no changes while adding intelligent features like schemas, managed embeddings, reranking+llm, GPU accel, Auto-TLP, Policy-based Memory Decay, and MCP server.

Library extending Jupyter notebooks to integrate with Apache TinkerPop, openCypher, and RDF SPARQL.

Efficient Graph Algorithms for Neo4j

Grafeo is a pure-Rust, high-performance graph database that can be embedded as a library or run as a standalone database, with optional in-memory or persistent storage. Grafeo supports both LPG and RDF and all major query languages.

NOTE: This project is no longer actively maintained. Please consider using the official Neo4j GraphQL Library (linked in README).

Visual query builder for Neo4j graph database

Neo4j Movies Example application with Flask backend using the neo4j-python-driver