AI Plugin IndexClaude Mermaid vs GitDiagram
Claude Mermaid and GitDiagram are both design MCP servers. GitDiagram scores higher (100 vs 78 out of 100). GitDiagram has more GitHub stars (18k), and Claude Mermaid was updated more recently (2 days ago). The table compares them side by side.
| Claude Mermaid | GitDiagram | |
|---|---|---|
| Score | 78 / 100 | 100 / 100 |
| What it does | MCP server for previewing Mermaid diagrams in Claude Code | Architecture diagrams, explanations and Mermaid source for public GitHub repositories. |
| Publisher | Verified: npm:claude-mermaid | Verified: gitdiagram.com |
| Grades | Maintenance A, Licence A, Quality C | Maintenance A, Licence A, Quality A |
| npm downloads a week | 451 | 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 | 218 | 18,323 |
| Last commit | 19 Oct 2026 | 14 Oct 2026 |
| Licence | MIT | MIT |
| Listed since | 20 Oct 2026 | 19 Oct 2026 |
| Install Claude Mermaid | Install GitDiagram |
Questions
Is Claude Mermaid or GitDiagram more popular?
GitDiagram has more GitHub stars: 18,323.
Can I use Claude Mermaid 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.