LifeTracker MCP Server

MCP server for LifeTracker DynamoDB integration.

Files

• main.py - FastMCP server with activity logging tools

• fastmcp.json - Deployment configuration

• GSI_SETUP.md - Guide for creating DynamoDB Global Secondary Index

Related MCP server: Amplify Data API MCP Server

Prerequisites

Required DynamoDB GSI

For optimal performance and consistency, create a Global Secondary Index on user_name:

Index configuration:

• Index name: user_name-index

• Partition key: user_name (String)

• Projection: ALL

See GSI_SETUP.md for detailed setup instructions.

Note: The server will work without the GSI but will fall back to slower Scan operations with ConsistentRead=True.

Local Development

uv run mcp dev main.py

Deployment Issue

⚠️ Current Issue: FastMCP cloud is throwing "Already running asyncio in this thread" errors.

This appears to be a compatibility issue between:

• FastMCP HTTP transport

• The cloud platform's event loop management

Attempted Fixes

✅ Removed mcp.run() ✅ Lazy DynamoDB initialization ✅ Removed Enum types ✅ Set both AWS_REGION and AWS_DEFAULT_REGION ✅ Created alternative server.py with base MCP Server

Recommended Solutions

1. Contact FastMCP Support - This error comes from their platform (cli.py:533)

2. Try Different Platform - Deploy to:

   • AWS Lambda with API Gateway

   • Google Cloud Run

   • Docker container on any host

3. Use Local/Claude Desktop - Works perfectly with stdio transport

Environment Variables

Required:

• AWS_ACCESS_KEY_ID

• AWS_SECRET_ACCESS_KEY

• AWS_DEFAULT_REGION (use this, not just AWS_REGION)

• TABLE_PREFIX (optional)

Tools

• create_activity_log - Log activities

• get_activity_logs - Fetch activity history