memgraph/memgraph

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

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Summary Information

Updated 15 minutes ago
Added to GitGenius on September 15th, 2026
Created on September 21st, 2020
Open Issues & Pull Requests: 815 (+0)
GitHub issues: Enabled
Number of forks: 283
Total Stargazers: 4,561 (+0)
Total Subscribers: 33 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 7.4 hours
Mean response time: 49.2 days
90th percentile: 139.0 days
Tracked items: 867

Most active contributors

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How this project is maintained

Around half of the issues opened in the past year never receive a reply. 87% of open issues come from outside the core team, so the backlog reflects real-world use rather than internal planning. Work labelled "bug" is answered fastest, typically in under an hour, while "Severity - S2" waits about 2 days. 28% of tracked open issues have had no activity in three months. Only 3% of issues opened in the past year have been closed.

Charts & Analytics

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Issue Activity (beta)

Open issues: 682
New in 7 days: 14
Closed in 7 days: 8
Avg open age: 600 days
Stale 30+ days: 275
Stale 90+ days: 206

Recent activity

Opened in 7 days: 12
Closed in 7 days: 8
Comments in 7 days: 0
Events in 7 days: 0

Top labels

  • community (437)
  • bug (432)
  • Priority - Later (380)
  • Severity - S3 (321)
  • Frequency - Monthly (277)
  • Reach - VeryFew (267)
  • Reach - Some (261)
  • Effort - Medium (232)

Detailed Description

Memgraph is a high-performance in-memory graph database built in C++ that combines graph traversal with vector and text search in a single query layer.

The tool addresses the fragmentation problem in AI systems where context retrieval typically requires querying multiple specialized databases—a vector store for semantic search, a text index for keyword matching, and a separate graph system for relationship traversal. Memgraph solves this by integrating vector indexes, text indexes, and graph algorithms into one atomic operation, enabling sub-millisecond multi-hop traversals. It implements the Cypher query language for compatibility with existing graph workflows and provides ACID compliance and high availability for production use.

Teams building GraphRAG pipelines, AI agents with memory systems, or real-time graph analytics should consider Memgraph when they need structured context alongside semantic search without the operational overhead of maintaining separate systems. The tool suits fraud detection, network analysis, and infrastructure monitoring workloads where performance is critical. The MAGE algorithm library includes 40+ graph algorithms in C++, Python, and CUDA, covering PageRank, community detection, and temporal graph networks. The AI Toolkit provides integrations with agentic frameworks and an MCP server for building agent workflows. Real-time schema introspection via SHOW SCHEMA INFO enables Text2Cypher and AI agent integration.

The project maintains active continuous integration with daily builds and testing. Development activity shows consistent engagement across the codebase with regular updates to core functionality and the algorithm library. The team actively maintains documentation and provides community support through Discord.