What is lachesis?
lachesis is a MCP server by UnboundCompute that code property graph for C, Python and TypeScript: callers/callees, data and taint flow with source-to-sink witnesses, points-to and guard/sink structure. It is listed under Security and has 6 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | UnboundCompute |
| Repository | UnboundCompute/lachesis |
| Popularity | 6 GitHub stars |
| Category | Security |
| Security | Low risk (96/100) |
| Rank | #2,105 of 4,418 MCP servers; #108 in Security |
| License | AGPL-3.0 |
| Last commit | 2026-10-16 |
| Stars this week | +1 |
| Runs | Locally |
| Language | Python |
| Platforms | macOS, Linux |
Is lachesis safe to install?
lachesis 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 lachesis?
- 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/UnboundCompute/lachesis
- 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 lachesis -- <command from README> claude mcp add --transport http lachesis <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 lachesis for you:
Add the "lachesis" MCP server from https://github.com/UnboundCompute/lachesis 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.