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Open Source / MIT Licensed

Memory Tools

Free, open-source tools that give your AI assistant a memory. Install in minutes, use forever.

Context Recovery

momentum

Instant context recovery for Claude Code. Save snapshots as you work, restore in milliseconds after /clear.

<5ms
restore
SQLite
storage
Free
price

Features

  • Snapshot-based context saving
  • Instant restoration (<5ms)
  • Session management
  • Context search
  • Importance tagging
  • SQLite persistence

Install

/plugin install momentum@substratia-marketplace
GitHub
Persistent Memory

memory-mcp

Give your AI persistent memory across sessions. Store, recall, and search facts that survive conversation resets.

FTS5
search
SQLite
storage
Free
price

Features

  • Store memories with auto-summarization
  • Full-text search (no embeddings)
  • Token budgeting for context
  • Entity extraction
  • Hybrid relevance scoring
  • Soft deletes with audit trail

Install

npx @whenmoon-afk/memory-mcp
GitHubnpm

Free & Open Source

All Substratia tools are MIT licensed and free forever. Contribute, customize, or just use them as-is.

View on GitHub

How They Work Together

Context Window Full?

Use momentum to snapshot your work, then /clear and restore instantly.

Best for: Mid-session context management

New Session?

Use memory-mcp to recall facts from past sessions automatically.

Best for: Cross-session knowledge

Both Together

Manage sessions with momentum, persist knowledge with memory-mcp. Complete AI workflow.

Best for: Complete AI workflow