What is rsigma?
rsigma is a MCP server by timescale that author, lint, validate and convert Sigma detection rules with RSigma, evaluate and explain detections against log events, and inspect correlation state. It is listed under Security and has 168 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | timescale |
| Repository | timescale/rsigma |
| Popularity | 168 GitHub stars |
| Category | Security |
| Security | Low risk (96/100) |
| Rank | #462 of 4,418 MCP servers; #21 in Security |
| License | MIT |
| Last commit | 2026-10-17 |
| Stars this week | +1 |
| Runs | Locally |
| Language | Rust |
| Platforms | macOS, Windows, Linux |
Is rsigma safe to install?
rsigma 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 |
|---|---|
| Published by the service itself | Pass |
| Runs on your machine only | Pass |
| Needs an API key or account login | Note |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install rsigma?
- 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/timescale/rsigma
- 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 rsigma -- <command from README> claude mcp add --transport http rsigma <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 rsigma for you:
Add the "rsigma" MCP server from https://github.com/timescale/rsigma 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.