Picobrain

What it does

Picobrain provides a local semantic memory layer for AI agents, allowing them to store observations, decisions, and context in a SQLite database. It uses local embeddings (nomic-embed-text-v1.5) to enable semantic search, effectively giving agents a "second brain" to recall previous interactions and learned patterns.

Tools

• store_thought: Save a memory with metadata (type, topics, people).
• semantic_search: Search memories by meaning to recall relevant context.
• list_recent: Browse the most recent memories stored.
• stats: Check memory usage and storage statistics.
• health: Verify the connectivity and status of the server.
• reflect: Consolidate and merge old observations into a more efficient form.
• bulk_import: Import memory data from JSONL files.
• delete_thought: Remove stale or incorrect data from memory.

Installation

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "picobrain": {
      "command": "npx",
      "args": ["@modelcontextprotocol/server-streamable-http", "http://localhost:8080/mcp"]
    }
  }
}

Supported hosts

• Claude Desktop
• OpenCode/Cursor