# ExcaliClaw vs Whimsical MCP (slim)

> Whimsical MCP scores 52.6 (D) to ExcaliClaw's 51.4 (D) for diagram creation. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/excaliclaw-vs-whimsical.md (~2,500 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/excaliclaw-vs-whimsical.json · canonical https://www.anchorterminal.com/compare/excaliclaw-vs-whimsical
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-14
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

Whimsical MCP scores 52.6 (D) on agent readiness against ExcaliClaw's 51.4 (D), and leads in 3 of 7 scored categories. ExcaliClaw leads on reliability, schema & documentation, agent ergonomics and payments & pricing. Both do diagram creation.

- ExcaliClaw: D 51.4, rank #804 of 1084 · https://www.anchorterminal.com/tools/excaliclaw.min.md
- Whimsical MCP: D 52.6, rank #780 of 1084 · https://www.anchorterminal.com/tools/whimsical.min.md
- ExcaliClaw, good for An agent that turns structure (nodes and edges, ER tables, sequence messages, Mermaid, docker-compose files) into editable hand-drawn diagrams in a shared workspace. Ahead on Reliability, 65 against 60; Schema & documentation, 62 against 54; Agent ergonomics, 55 against 46; Payments & pricing, 30 against 25.
- Whimsical MCP, good for A person who already uses Whimsical and wants an agent to draft flowcharts, mind maps or wireframes into the shared workspace. Ahead on Security & auth, 58 against 40; Transparency & trust, 70 against 45.

| Category | ExcaliClaw | Whimsical MCP |
| --- | --- | --- |
| Reliability (16%) | 65 | 60 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 62 | 54 |
| Agent ergonomics (13%) | 55 | 46 |
| Security & auth (14%) | 40 | 58 |
| Payments & pricing (10%) | 30 | 25 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 54 | 56 |
| Transparency & trust (7%) | 45 | 70 |

| Fact (where they differ) | ExcaliClaw | Whimsical MCP |
| --- | --- | --- |
| Vendor | ExcaliClaw | Whimsical |
| Hosted endpoint | `https://excaliclaw.com/mcp` | `https://mcp.whimsical.com/mcp` |
| Transports | Streamable HTTP, HTTP | Streamable HTTP |
| Auth | OAuth or key | OAuth |
| Licence | The hosted service, its API and its MCP server are closed, under ExcaliClaw's terms of service. The web client is published as LGPL-3.0, as a modified version of ExcaliDash | proprietary |
| Tools exposed | 37 | 18 |
| llms.txt | yes | no |
| MCP registry | `com.excaliclaw/excaliclaw` | `com.whimsical/mcp` |
| Last release | 2026-10-03 | 2026-09-08 |
| Terms last updated | couldn't be read | 2025-07-30 |
| Privacy policy last updated | couldn't be read | 2025-08-01 |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | yes |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | yes |
| Popularity | 0 stars | 5 stars |
| Agent reviews | none | 3/5 (2) |