MemoGraph MCP Server

MemoGraph 🧠

A graph-based memory system for LLMs with intelligent retrieval. MemoGraph provides a powerful solution to the LLM memory problem by combining knowledge graphs, hybrid retrieval, and semantic search.

✨ Features

• 🤖 Smart Auto-Organization Engine: Automatically extract structured information from memories using LLMs
  • Topics, subtopics, and recurring themes
  • People with roles and organizations
  • Action items with assignees and deadlines
  • Decisions, questions, and sentiment analysis
  • Risks, ideas, and timeline events
• Graph-Based Memory: Navigate knowledge using bidirectional wikilinks and backlinks
• Hybrid Retrieval: Combines keyword matching, graph traversal, and optional vector embeddings
• Markdown-Native: Human-readable markdown files with YAML frontmatter
• Memory Types: Support for episodic, semantic, procedural, and fact-based memories
• Smart Indexing: Efficient caching system that only re-indexes changed files
• CLI & Python API: Use via command line or integrate into your Python applications
• Multiple LLM Providers: Works with Ollama, Claude, and OpenAI
• Context Compression: Intelligent token budgeting for optimal context windows
• Salience Scoring: Memory importance ranking for better retrieval

🚀 Quick Start

Installation

pip install memograph

Install with optional dependencies:

# For OpenAI support
pip install memograph[openai]

# For Anthropic Claude support
pip install memograph[anthropic]

# For Ollama support
pip install memograph[ollama]

# For embedding support
pip install memograph[embeddings]

# Install everything
pip install memograph[all]

Python Usage

from memograph import MemoryKernel, MemoryType

# Initialize the kernel attached to your vault path
kernel = MemoryKernel("~/my-vault")

# Ingest all notes in the vault
stats = kernel.ingest()
print(f"Indexed {stats['indexed']} memories.")

# Programmatically add a new memory
kernel.remember(
    title="Meeting Note",
    content="Decided to use BFS graph traversal for retrieval.",
    memory_type=MemoryType.EPISODIC,
    tags=["design", "retrieval"]
)

# Retrieve context for an LLM query
context = kernel.context_window(
    query="how does retrieval work?",
    tags=["retrieval"],
    depth=2,
    top_k=8
)

print(context)

🔌 MCP Server (Model Context Protocol)

MemoGraph includes a full-featured MCP server for seamless integration with AI assistants like Cline and Claude Desktop.

19 Available Tools

Quick Setup for Cline

Add to your ~/.cline/mcp_settings.json:

{
  "mcp": {
    "servers": {
      "memograph": {
        "command": "python",
        "args": ["-m", "memograph.mcp.run_server"],
        "env": {
          "MEMOGRAPH_VAULT": "/path/to/your/vault"
        }
      }
    }
  }
}

Quick Setup for Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "memograph": {
      "command": "python",
      "args": ["-m", "memograph.mcp.run_server", "--vault", "/path/to/your/vault"]
    }
  }
}

Install from MCP Registry

NEW: MemoGraph is now available in the official MCP Registry!

# Install via MCP CLI (if available)
mcp install io.github.indhar01/memograph

# Or manually configure in your MCP client:

{
  "mcpServers": {
    "memograph": {
      "command": "python",
      "args": ["-m", "memograph.mcp.run_server"],
      "env": {
        "MEMOGRAPH_VAULT": "~/my-vault"
      }
    }
  }
}

Benefits of MCP Registry:

• ✅ Official registry backed by Anthropic, GitHub, and Microsoft
• ✅ Automatic version updates from PyPI
• ✅ Discoverable by all MCP-compatible clients
• ✅ Verified and trusted installation

See MCP_REGISTRY_GUIDE.md for complete submission and configuration guide.

Usage Examples

Once configured, use natural language with your AI assistant:

"Search my vault for memories about Python"
"Create a memory titled 'Project Ideas' with content '...'"
"Update memory abc-123 to have salience 0.9"
"Delete memory xyz-456"
"What tools are available?"
"Get vault statistics"

See CONFIG_REFERENCE.md for complete MCP configuration guide.

🎯 CLI Usage

MemoGraph comes with a powerful CLI for managing your vault and chatting with it.

Ingest

Index your markdown files into the graph database:

memograph --vault ~/my-vault ingest

Force re-indexing all files:

memograph --vault ~/my-vault ingest --force

Remember

Quickly add a memory from the command line:

memograph --vault ~/my-vault remember \
    --title "Team Sync" \
    --content "Discussed Q3 goals." \
    --tags planning q3

Context Window

Generate context for a query:

memograph --vault ~/my-vault context \
    --query "What did we decide about the database?" \
    --tags architecture \
    --depth 2 \
    --top-k 5

Ask (Interactive Chat)

Start an interactive chat session with your vault context:

memograph --vault ~/my-vault ask --chat --provider ollama --model llama3

Or ask a single question:

memograph --vault ~/my-vault ask \
    --query "Summarize our design decisions" \
    --provider claude \
    --model claude-3-5-sonnet-20240620

Diagnostics

Check your environment and connection to LLM providers:

memograph --vault ~/my-vault doctor

📖 Core Concepts

Memory Types

MemoGraph supports different types of memories inspired by cognitive science:

• Episodic: Personal experiences and events (e.g., meeting notes)
• Semantic: Facts and general knowledge (e.g., documentation)
• Procedural: How-to knowledge and processes (e.g., tutorials)
• Fact: Discrete factual information (e.g., configuration values)

Graph Traversal

The library uses BFS (Breadth-First Search) to traverse your knowledge graph:

# Retrieve nodes with depth=2 (2 hops from seed nodes)
nodes = kernel.retrieve_nodes(
    query="graph algorithms",
    depth=2,  # Traverse up to 2 levels deep
    top_k=10  # Return top 10 relevant memories
)

Salience Scoring

Each memory has a salience score (0.0-1.0) that represents its importance:

---
title: "Critical Architecture Decision"
salience: 0.9
memory_type: semantic
---

We decided to use PostgreSQL for better ACID guarantees...

🏗️ Project Structure

MemoGraph/
├── memograph/          # Main package
│   ├── core/           # Core functionality
│   │   ├── kernel.py   # Memory kernel
│   │   ├── graph.py    # Graph implementation
│   │   ├── retriever.py # Hybrid retrieval
│   │   ├── indexer.py  # File indexing
│   │   └── parser.py   # Markdown parsing
│   ├── adapters/       # LLM and embedding adapters
│   │   ├── embeddings/ # Embedding providers
│   │   ├── frameworks/ # Framework integrations
│   │   └── llm/        # LLM providers
│   ├── storage/        # Storage and caching
│   ├── mcp/            # MCP server implementation
│   └── cli.py          # CLI implementation
├── tests/              # Test suite
├── examples/           # Example usage
└── scripts/            # Utility scripts

🤝 Contributing

We welcome contributions! Please see our Contributing Guide for details.

Development Setup

1. Clone the repository:

   git clone https://github.com/Indhar01/MemoGraph.git
   cd MemoGraph
   

2. Install in development mode:

   pip install -e ".[all,dev]"
   

3. Install pre-commit hooks:

   pre-commit install
   

4. Run tests:

   pytest
   

Code Quality

We maintain high code quality standards:

• Linting: Ruff for fast Python linting
• Formatting: Ruff formatter for consistent code style
• Type Checking: MyPy for static type analysis
• Testing: Pytest with comprehensive test coverage
• Pre-commit Hooks: Automated checks before each commit

📚 Documentation

• MCP Registry Guide - Publishing to official MCP Registry
• AGENTS.md - Guide for AI agents working with this codebase
• Contributing Guide - How to contribute to the project
• Code of Conduct - Community guidelines
• Security Policy - Security reporting and best practices
• Changelog - Version history and changes

🔒 Security

See our Security Policy for reporting vulnerabilities.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🌟 Acknowledgments

Inspired by the need for better memory management in LLM applications. Built with:

• Graph-based knowledge representation
• Hybrid retrieval strategies
• Cognitive science principles

📬 Contact & Support

• Issues: GitHub Issues
• Discussions: GitHub Discussions

🚦 Status

Current Version: 0.1.0 (Alpha - Marketplace Ready)

This project is in active development with a focus on code quality and stability:

• ✅ Core functionality is stable and tested
• ✅ All linter checks passing (Ruff)
• ✅ Type checking configured (MyPy)
• ✅ Pre-commit hooks enabled
• ✅ Comprehensive test suite
• ⚠️ API may change in minor versions until v1.0.0

Recent Improvements:

• 🎉 Published to official MCP Registry (io.github.indhar01/memograph)
• Enhanced code quality with Ruff linting and formatting
• Added comprehensive type checking with MyPy
• Improved project structure and organization
• Updated MCP server with 19 tools including autonomous features and graph operations
• Added AGENTS.md for AI assistant integration
• Created comprehensive MCP Registry submission guide

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Made with ❤️ for better LLM memory management