AI Plugin IndexFast Mermaid Validator MCP vs GitDiagram
Fast Mermaid Validator MCP and GitDiagram are both design MCP servers. GitDiagram scores higher (100 vs 57 out of 100). GitDiagram has more GitHub stars (18k), and GitDiagram was updated more recently (10 days ago). The table compares them side by side.
| Fast Mermaid Validator MCP | GitDiagram | |
|---|---|---|
| Score | 57 / 100 | 100 / 100 |
| What it does | High-performance API and Model Context Protocol (MCP) server for validating Mermaid diagrams with comprehensive security features, multiple transport options, and enterprise-grade capabilities | Architecture diagrams, explanations and Mermaid source for public GitHub repositories. |
| Publisher | Verified: npm:@ai-of-mine | Verified: gitdiagram.com |
| Grades | Maintenance C, Licence A, Quality C | Maintenance A, Licence A, Quality A |
| npm downloads a week | 15 | 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 | 2 | 18,323 |
| Last commit | 28 May 2026 | 14 Oct 2026 |
| Licence | Apache-2.0 | MIT |
| Listed since | 20 Oct 2026 | 19 Oct 2026 |
| Install Fast Mermaid Validator MCP | Install GitDiagram |
Questions
Is Fast Mermaid Validator MCP or GitDiagram more popular?
GitDiagram has more GitHub stars: 18,323.
Can I use Fast Mermaid Validator MCP 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.