YourMemory

Overview

YourMemory is a persistent memory layer for AI agents that mimics human memory through scientific decay principles. It combines vector search, BM25, and entity graph retrieval with a biological forgetting curve model to automatically strengthen important memories and prune outdated ones. The system requires no external infrastructure, working entirely locally with DuckDB, and provides both MCP tools and a direct query interface to answer questions from memory without LLM API calls.

Try asking AI

After installing, here are 7 things you can ask your AI assistant:

• recall_memoryrecall_memory(query, current_path?)

  Surfaces relevant memories ranked by similarity × strength; boosts spatially matched memories

  Try:What are my preferences for Python code formatting?Try:How did I fix the database connection issue?
• store_memorystore_memory(content, importance, context_paths?)

  Embeds and stores with biological decay; tags optional file/dir paths for spatial recall

  Try:Remember that I prefer tabs over spaces in PythonTry:Store that staging uses self-signed certificates
• update_memoryupdate_memory(id, new_content)

  Re-embeds and replaces outdated memories; logs old content to audit trail

  Try:Update my email address sachit@mishra.com to sachit@newemail.comTry:Correct the database port to 5432

Comparable tools

Installation

# Install YourMemory
pip install yourmemory

# Get your config path
yourmemory-path

# Add to Claude Desktop config
{
  "mcpServers": {
    "yourmemory": {
      "command": "yourmemory"
    }
  }
}

FAQ

What databases does YourMemory use?

DuckDB locally and Postgres in production. No database setup required for local use.

How does memory decay work?

Memory strength decays exponentially based on the Ebbinghaus forgetting curve, with importance and recall frequency slowing the decay. Memories below strength 0.05 are pruned automatically.

Can I query memory without an LLM API call?

Yes. YourMemory has a built-in 'ask' command that answers simple factual queries directly from memory without any LLM API call or cost.

On Hacker News

Recent discussion from the developer community.

• Show HN: AI memory with biological decay (52% recall)▲ 98💬 53
  Story by SachitRafa · 2026-04-26

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