# Eraser API + MCP vs Whimsical MCP (slim)

> Whimsical MCP has a score of 52.7 (D) against Eraser API + MCP's 38.7 (E). Both do diagram create. The largest gap is reliability, 45 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/eraser-vs-whimsical.md (~1,450 tokens) · this version ~330 tokens · JSON https://www.anchorterminal.com/compare/eraser-vs-whimsical.json · canonical https://www.anchorterminal.com/compare/eraser-vs-whimsical
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

Whimsical MCP has a score of 52.7 (D) against Eraser API + MCP's 38.7 (E). Both do diagram create. The largest gap is reliability, 45 points.

- Eraser API + MCP: E 38.7, rank #427 of 452 · https://www.anchorterminal.com/tools/eraser.min.md
- Whimsical MCP: D 52.7, rank #341 of 452 · https://www.anchorterminal.com/tools/whimsical.min.md
- Pick Eraser API + MCP for payments & pricing (+10). Pick Whimsical MCP for reliability (+45), agent ergonomics (+12), maintenance & community (+23), transparency & trust (+21).

| Category | Eraser API + MCP | Whimsical MCP |
| --- | --- | --- |
| Reliability (16%) | 15 | 60 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 52 | 54 |
| Agent ergonomics (13%) | 34 | 46 |
| Security & auth (14%) | 57 | 58 |
| Payments & pricing (10%) | 35 | 25 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 33 | 56 |
| Transparency & trust (7%) | 51 | 72 |