mem0-agent-memory 1.0.0

MCP server for Mem0 agent memory management with multi-backend support

Mem0 Agent Memory

MCP server for Mem0 agent memory management with multi-backend support.

Features

• Multi-backend: FAISS (local), OpenSearch (AWS), Mem0 Platform (cloud)
• Auto user detection: Uses system username when no user_id provided
• Relevance filtering: Returns memories with score > 0.7
• Complete memory operations: store, search, list, get, delete, history
• Pagination support: Handle large memory collections efficiently
• Recent memory tracking: Get latest updates for session continuity
• Robust error handling: Graceful fallbacks and clear error messages

Installation

pip install mem0-agent-memory

Quick Start

# Run directly with uvx
uvx mem0-agent-memory

# Or install and run
pip install mem0-agent-memory
python -m mem0_agent_memory

Configuration

Environment Variables

# FAISS (default - uses .mem0/memory in current directory)
export FAISS_PATH="/path/to/memory/storage"  # Optional

# OpenSearch
export OPENSEARCH_HOST="your-opensearch-endpoint"
export AWS_REGION="us-west-2"

# Mem0 Platform
export MEM0_API_KEY="your-api-key"

# User/Agent ID (optional - auto-detects if not provided)
export MEM0_USER_ID="custom-user-id"      # Defaults to system username
export MEM0_AGENT_ID="custom-agent-id"    # Defaults to workspace name

MCP Client Setup

Amazon Q CLI

Create or edit the MCP configuration file:

Global Scope: ~/.aws/amazonq/mcp.json Local Scope: .amazonq/mcp.json (project-specific)

{
  "mcpServers": {
    "mem0-agent-memory": {
      "command": "uvx",
      "args": ["mem0-agent-memory"],
      "env": {
        "FAISS_PATH": "/Users/yourname/.mem0/agent",
        "MEM0_USER_ID": "john",
        "MEM0_AGENT_ID": "my-project"
      }
    }
  }
}

KIRO

Add to your KIRO MCP configuration:

{
  "mcpServers": {
    "mem0-agent-memory": {
      "command": "uvx",
      "args": ["mem0-agent-memory"],
      "env": {
        "FAISS_PATH": "/Users/yourname/.mem0/agent",
        "MEM0_USER_ID": "john",
        "MEM0_AGENT_ID": "my-project"
      }
    }
  }
}

Tools

• store_memory(content, user_id?, agent_id?, metadata?) - Store memory with metadata
• search_memories(query, user_id?, agent_id?, limit?, page?, page_size?) - Search with relevance filtering & pagination
• list_memories(user_id?, agent_id?, page?, page_size?) - List all memories with pagination
• get_memory(memory_id) - Get specific memory by ID
• delete_memory(memory_id) - Delete memory by ID (permanent)
• get_memory_history(memory_id) - Get change history for memory
• get_recent_memory(days?, limit?, user_id?, agent_id?) - Get recent memories for session continuity

Usage Examples

Store Memory

// Auto-detect user
{"content": "User prefers React over Vue"}

// With metadata
{"content": "API endpoint changed", "metadata": {"type": "technical", "priority": "high"}}

// Specific user
{"content": "Project deadline is next Friday", "user_id": "john"}

Search Memories

// Basic search
{"query": "React preferences"}

// With pagination
{"query": "API endpoints", "limit": 5, "page": 2}

// Specific user
{"query": "project status", "user_id": "john"}

List Memories

// Auto-detect user with pagination
{"page": 1, "page_size": 10}

// Specific user
{"user_id": "john", "page": 2, "page_size": 25}

Get Recent Memories

// Last week (default)
{}

// Last 3 days, limit 5
{"days": 3, "limit": 5}

// Specific user
{"days": 7, "user_id": "john"}

Memory Management

// Get specific memory
{"memory_id": "cafdf73c-f8c7-4729-b840-e88ce7d8a67c"}

// Get memory history
{"memory_id": "cafdf73c-f8c7-4729-b840-e88ce7d8a67c"}

// Delete memory (permanent)
{"memory_id": "cafdf73c-f8c7-4729-b840-e88ce7d8a67c"}

Architecture

Backend Auto-Detection

1. Mem0 Platform: If MEM0_API_KEY is set
2. OpenSearch: If OPENSEARCH_HOST is set
3. FAISS: Default fallback (local storage in .mem0/memory)

Auto User/Agent Detection

When neither user_id nor agent_id is provided, automatically detects:

• user_id: MEM0_USER_ID env var → system username
• agent_id: MEM0_AGENT_ID env var → workspace name (current directory)

This enables dual memories: user memories are personal, agent memories are workspace-specific.

Relevance Filtering

Search results automatically filtered to return only memories with relevance score > 0.7, ensuring high-quality results.

Error Handling

• Automatic fallback to /tmp if FAISS path is not writable
• Clear error messages for missing dependencies
• Graceful handling of network issues and invalid parameters

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Citation

If you use this software in your research or project, please cite it as:

@software{selvam_mem0_agent_memory_2024,
  author = {Selvam, Arunkumar},
  title = {Mem0 Agent Memory - MCP Server},
  url = {https://github.com/arunkumars-mf/mem0-agent-memory},
  version = {1.0.0},
  year = {2024}
}

License

MIT