What is RAGStack-Lambda?
RAGStack-Lambda is a MCP server by HatmanStack that access RAGStack serverless knowledge bases on AWS: search, chat with AI answers, upload documents and media, scrape websites and analyze metadata. It is listed under Knowledge & memory and has 25 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | HatmanStack |
| Repository | HatmanStack/RAGStack-Lambda |
| Popularity | 25 GitHub stars |
| Category | Knowledge & memory |
| Security | Low risk (84/100) |
| Rank | #1,187 of 4,418 MCP servers; #120 in Knowledge & memory |
| License | Apache-2.0 |
| Last commit | 2026-10-16 |
| Runs | Cloud service |
| Language | Python |
| Platforms | macOS, Windows, Linux |
Is RAGStack-Lambda safe to install?
RAGStack-Lambda scores 84/100 on the MCPMods security check: Low risk. Things to review: sends your data to a cloud service. 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 |
| Sends your data to a cloud service | Review |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install RAGStack-Lambda?
- 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/HatmanStack/RAGStack-Lambda/tree/main/src/ragstack-mcp
- 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 ragstack-lambda -- <command from README> claude mcp add --transport http ragstack-lambda <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 RAGStack-Lambda for you:
Add the "RAGStack-Lambda" MCP server from https://github.com/HatmanStack/RAGStack-Lambda/tree/main/src/ragstack-mcp 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.