What is knowl?
knowl is a MCP server by dat999zx that persistent local memory for coding agents that retires replaced facts at write time, so agents read the current answer; facts are typed with provenance. It is listed under Knowledge & memory and has 106 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | dat999zx |
| Repository | dat999zx/knowl |
| Popularity | 106 GitHub stars |
| Category | Knowledge & memory |
| Security | Low risk (84/100) |
| Rank | #573 of 4,418 MCP servers; #56 in Knowledge & memory |
| License | Apache-2.0 |
| Last commit | 2026-10-16 |
| Stars this week | +23 |
| Runs | Locally |
| Language | TypeScript |
| Platforms | macOS, Windows, Linux |
Is knowl safe to install?
knowl scores 84/100 on the MCPMods security check: Low risk. Things to review: can take actions such as send, write or deploy. It passed 4 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 |
| Can take actions such as send, write or deploy | Review |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install knowl?
- 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/dat999zx/knowl
- 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 knowl -- <command from README> claude mcp add --transport http knowl <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 knowl for you:
Add the "knowl" MCP server from https://github.com/dat999zx/knowl 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.