Every AI conversation starts from scratch
Covalence gives your AI persistent memory — locally, privately, across every client.
Two copy-pastes. That's it.
Install
Download the app. It lives in your menu bar.
Connect
Paste the MCP config into your AI client.
{
"mcpServers": {
"covalence": {
"command": "/Applications/Covalence.app/Contents/MacOS/cov-mcp"
}
}
}Done
Your AI remembers. No accounts, no API keys, no cloud.
Everything your AI needs to remember
Semantic search
Finds what you mean, not just what you typed. Hybrid vector + keyword search with recency weighting.
Core Memories
Pin your most important knowledge. Always surfaced first across every client.
Multi-client
Claude Desktop, Claude Code, Cursor — any MCP client, simultaneously. No conflicts.
Local embeddings
CoreML on Apple Neural Engine. No API keys, no cost, millisecond inference.
Always running
Menu bar app with one-click capture. Global hotkey for instant search.
Your data
SQLite file on your Mac. Export anytime as markdown or JSON. No cloud. No telemetry.
Under the hood
The stack
- Database: SQLite + sqlite-vec — single file, embedded, battle-tested
- Embeddings: CoreML on Apple Neural Engine — on-device, instant, free
- Search: Hybrid vector + FTS5 keyword, merged via Reciprocal Rank Fusion
- Protocol: MCP (stdio) — the standard for AI tool integration
- UI: Native SwiftUI — belongs on your Mac
Privacy by architecture
Your data never leaves your machine. No accounts. No telemetry. No cloud. Runs entirely on-device.
Every component — the database, the embedding model, the search engine — runs locally. There are no network calls, no API keys, no external dependencies. Your memories are a single SQLite file on your Mac that you own, back up, and export whenever you want.