# Eraser API + MCP vs Mermaid Chart MCP (slim)

> Eraser API + MCP has a score of 38.7 (E) against Mermaid Chart MCP's 31.7 (F). Both do diagram create. The largest gap is security & auth, 37 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/eraser-vs-mermaid-chart.md (~1,500 tokens) · this version ~330 tokens · JSON https://www.anchorterminal.com/compare/eraser-vs-mermaid-chart.json · canonical https://www.anchorterminal.com/compare/eraser-vs-mermaid-chart
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

Eraser API + MCP has a score of 38.7 (E) against Mermaid Chart MCP's 31.7 (F). Both do diagram create. The largest gap is security & auth, 37 points.

- Eraser API + MCP: E 38.7, rank #427 of 452 · https://www.anchorterminal.com/tools/eraser.min.md
- Mermaid Chart MCP: F 31.7, rank #442 of 452 · https://www.anchorterminal.com/tools/mermaid-chart.min.md
- Pick Eraser API + MCP for schema & documentation (+20), security & auth (+37). Pick Mermaid Chart MCP for payments & pricing (+10), maintenance & community (+20).

| Category | Eraser API + MCP | Mermaid Chart MCP |
| --- | --- | --- |
| Reliability (16%) | 15 | 15 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 52 | 32 |
| Agent ergonomics (13%) | 34 | 34 |
| Security & auth (14%) | 57 | 20 |
| Payments & pricing (10%) | 35 | 45 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 33 | 53 |
| Transparency & trust (7%) | 51 | 48 |