What is longhand?
longhand is a MCP server by Wynelson94 that persistent local memory for Claude Code: indexes all sessions verbatim into SQLite and ChromaDB for semantic recall across your history, with no API calls. It is listed under Knowledge & memory and has 14 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | Wynelson94 |
| Repository | Wynelson94/longhand |
| Popularity | 14 GitHub stars |
| Category | Knowledge & memory |
| Security | Low risk (96/100) |
| Rank | #1,520 of 4,418 MCP servers; #171 in Knowledge & memory |
| License | MIT |
| Last commit | 2026-09-28 |
| Runs | Locally |
| Language | Python |
| Platforms | macOS, Windows, Linux |
Is longhand safe to install?
longhand scores 96/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 5 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Runs on your machine only | Pass |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install longhand?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/Wynelson94/longhand
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add longhand -- <command from README> claude mcp add --transport http longhand <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs longhand for you:
Add the "longhand" MCP server from https://github.com/Wynelson94/longhand to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.