What is diagrams-mcp-app-core?
diagrams-mcp-app-core is a MCP server by RedHold that generate and edit draw.io cloud architecture diagrams from prompts, Terraform or Kubernetes manifests, fix Well-Architected warnings and export to SVG. It is listed under Media & design and has no public popularity data yet.
| Type | Mcp server |
|---|---|
| Author | RedHold |
| Repository | RedHold/diagrams-mcp-app-core |
| Popularity | no public popularity data yet |
| Category | Media & design |
| Security | Review before installing (76/100) |
| Rank | #3,760 of 4,418 MCP servers; #264 in Media & design |
| License | Apache-2.0 |
| Last commit | 2026-10-09 |
| Runs | Cloud service |
| Language | TypeScript |
| Platforms | macOS, Windows, Linux |
Is diagrams-mcp-app-core safe to install?
diagrams-mcp-app-core scores 76/100 on the MCPMods security check: Review before installing. Things to review: sends your data to a cloud service; 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 |
|---|---|
| Published by the service itself | Pass |
| Sends your data to a cloud service | Review |
| 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 diagrams-mcp-app-core?
- 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/RedHold/diagrams-mcp-app-core
- 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 diagrams-mcp-app-core -- <command from README> claude mcp add --transport http diagrams-mcp-app-core <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 diagrams-mcp-app-core for you:
Add the "diagrams-mcp-app-core" MCP server from https://github.com/RedHold/diagrams-mcp-app-core 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.