What is redacta?
redacta is a MCP server by nickjlamb that privacy boundary for healthcare AI agents: pseudonymises patient identifiers (NHS numbers, names, dates of birth, addresses; UK and US) into labelled tokens locally, keeps the reversal map. It is listed under Security and has 8 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | nickjlamb |
| Repository | nickjlamb/redacta |
| Popularity | 8 GitHub stars |
| Category | Security |
| Security | Low risk (92/100) |
| Rank | #1,905 of 4,418 MCP servers; #91 in Security |
| License | MIT-0 |
| Last commit | 2026-10-06 |
| Runs | Locally |
| Language | TypeScript |
Is redacta safe to install?
redacta scores 92/100 on the MCPMods security check: Low risk. No checks raised a concern. 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 |
| 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 redacta?
- 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/nickjlamb/redacta
- 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 redacta -- <command from README> claude mcp add --transport http redacta <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 redacta for you:
Add the "redacta" MCP server from https://github.com/nickjlamb/redacta 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.