AI Plugin Indexonsystem vs GitDiagram
onsystem and GitDiagram are both design MCP servers. GitDiagram scores higher (100 vs 81 out of 100). GitDiagram has more GitHub stars (18k), and onsystem was updated more recently (5 days ago). The table compares them side by side.
| onsystem | GitDiagram | |
|---|---|---|
| Score | 81 / 100 | 100 / 100 |
| What it does | Catches palette colors, native elements and APIs your design system lacks in agent-written React. | Architecture diagrams, explanations and Mermaid source for public GitHub repositories. |
| Publisher | Community: dgesteves | Verified: gitdiagram.com |
| Grades | Maintenance A, Licence A, Quality C | Maintenance A, Licence A, Quality A |
| npm downloads a week | 831 | Not on npm |
| Runs | Local | Remote |
| Works with | Claude Code, Claude Desktop, Cursor, Codex, Gemini CLI, VS Code, Windsurf | Claude Code, Claude Desktop, Cursor, Codex, Gemini CLI, VS Code, Windsurf, ChatGPT |
| GitHub stars | 1 | 18,323 |
| Last commit | 16 Oct 2026 | 14 Oct 2026 |
| Licence | MIT | MIT |
| Listed since | 19 Oct 2026 | 19 Oct 2026 |
| Install onsystem | Install GitDiagram |
Questions
Is onsystem or GitDiagram more popular?
GitDiagram has more GitHub stars: 18,323.
Can I use onsystem and GitDiagram together?
Yes. AI assistants can load several MCP servers at once. Install both and the assistant picks the right one for each task.