Skip to content

Quick Start

Get up and running with Mnemex in 5 minutes.

Prerequisites

Step 1: Verify Installation

Check that Mnemex is ready:

# Check MCP server
mnemex --version

# Check CLI tools
mnemex-search --help
mnemex-maintenance --help

Step 2: Start Claude Desktop

Restart Claude Desktop to load the Mnemex MCP server.

Verify Mnemex is available: 1. Start a new conversation 2. Look for the 🔌 icon (MCP tools available) 3. Mnemex should appear in the available servers

Step 3: Save Your First Memory

In Claude, try:

"I prefer TypeScript over JavaScript for new projects. Remember this preference."

Claude will automatically use save_memory to store this information.

Step 4: Recall a Memory

Later, ask:

"What are my language preferences?"

Claude will use search_memory to find and recall your preference.

Step 5: View Your Memories

Check what's stored:

# Search all memories
mnemex-search "TypeScript"

# View storage statistics
mnemex-maintenance stats

# See raw JSONL storage
cat ~/.config/mnemex/jsonl/memories.jsonl

Common Patterns

Auto-Save Important Information

Claude automatically saves when you share: - Personal preferences - Project decisions - Important facts - Context about your work

Auto-Recall Context

Claude automatically searches memory when you: - Reference past topics - Ask about previous decisions - Continue earlier conversations

Reinforce Memories

When you revisit information, Claude uses touch_memory to strengthen it, preventing decay.

Consolidate Similar Memories

When similar memories accumulate:

# Find clusters
mnemex-consolidate --preview

# Apply consolidation
mnemex-consolidate --apply

Or let Claude do it automatically when detecting related memories.

Example Workflow

1. Project Setup

"I'm starting a new project called 'task-tracker'. It's a Python web app using FastAPI and PostgreSQL."

Claude saves this as a memory with entities: task-tracker, FastAPI, PostgreSQL

2. Make Decisions

"For task-tracker, I've decided to use SQLAlchemy for the ORM and Alembic for migrations."

Claude saves this decision and links it to the project entity.

3. Days Later...

"What decisions did I make for task-tracker?"

Claude searches memories for task-tracker entity and recalls all related decisions.

4. Review Memory Status

# See all memories related to project
mnemex-search "task-tracker"

# Check decay scores
mnemex-maintenance stats

5. Promote to Long-Term

Important memories automatically promote to LTM when: - Score >= 0.65 (high value) - Used 5+ times in 14 days

Or manually promote:

# Find high-value memories
mnemex-promote --dry-run

# Promote to Obsidian vault
mnemex-promote

CLI Tools

Search Across STM + LTM

# Basic search
mnemex-search "Python"

# Filter by tags
mnemex-search "Python" --tags coding,projects

# Limit results
mnemex-search "Python" --limit 10

Maintenance

# View statistics
mnemex-maintenance stats

# Compact storage (remove deleted entries)
mnemex-maintenance compact

# Full report
mnemex-maintenance report

Garbage Collection

# Preview what will be deleted
mnemex-gc --dry-run

# Delete low-scoring memories
mnemex-gc

Memory Consolidation

# Find similar memory clusters
mnemex-consolidate --preview --cohesion-threshold 0.75

# Apply consolidation
mnemex-consolidate --apply --cohesion-threshold 0.80

Advanced Usage

Custom Decay Parameters

Edit ~/.config/mnemex/.env:

# Slower decay (memories last longer)
MNEMEX_PL_HALFLIFE_DAYS=7.0

# Faster decay (more aggressive forgetting)
MNEMEX_PL_HALFLIFE_DAYS=1.0

Restart Claude Desktop to apply changes.

Knowledge Graph

Build a graph of connected concepts:

# Create explicit relations
create_relation(
    from_id="mem_project_xyz",
    to_id="mem_decision_sqlalchemy",
    relation_type="has_decision"
)

# Query the graph
read_graph()  # Get entire graph
open_memories(["mem_project_xyz"])  # Get memory with relations

Enable in .env:

MNEMEX_ENABLE_EMBEDDINGS=true
MNEMEX_EMBED_MODEL=all-MiniLM-L6-v2

Install dependencies: 

uv pip install sentence-transformers

Troubleshooting

No Memories Being Saved

  1. Check Claude Desktop logs for MCP errors
  2. Verify .env file exists: cat ~/.config/mnemex/.env
  3. Check storage directory: ls ~/.config/mnemex/jsonl/

Can't Find Memories

  1. Check search: mnemex-search "keyword"
  2. View all: cat ~/.config/mnemex/jsonl/memories.jsonl
  3. Check decay scores: mnemex-maintenance stats

Memory Decay Too Fast

Increase half-life in .env: 

MNEMEX_PL_HALFLIFE_DAYS=7.0  # Increase from 3.0

Next Steps