# Kroki vs Whimsical MCP (slim)

> Kroki scores 59.2 (C) to Whimsical MCP's 52.6 (D) for diagram creation. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/kroki-vs-whimsical.md (~2,400 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/kroki-vs-whimsical.json · canonical https://www.anchorterminal.com/compare/kroki-vs-whimsical
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Kroki scores 59.2 (C) on agent readiness against Whimsical MCP's 52.6 (D), and leads in 4 of 7 scored categories. Whimsical MCP leads on schema & documentation and transparency & trust. Both do diagram creation.

- Kroki: C 59.2, rank #558 of 950 · https://www.anchorterminal.com/tools/kroki.min.md
- Whimsical MCP: D 52.6, rank #731 of 950 · https://www.anchorterminal.com/tools/whimsical.min.md
- Kroki, good for Agents that write diagrams in several text formats and want one render endpoint, on a private network or through the public instance for non-sensitive diagrams. Ahead on Reliability, 74 against 60; Agent ergonomics, 70 against 46; Payments & pricing, 60 against 25; Maintenance & community, 86 against 56. Also No key needed to call it; Open source.
- 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 Schema & documentation, 54 against 48; Transparency & trust, 70 against 62. Also A hosted endpoint, with nothing to install; No incidents deducted, where Kroki loses 5 points for them.

| Category | Kroki | Whimsical MCP |
| --- | --- | --- |
| Reliability (16%) | 74 | 60 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 48 | 54 |
| Agent ergonomics (13%) | 70 | 46 |
| Security & auth (14%) | 56 | 58 |
| Payments & pricing (10%) | 60 | 25 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 86 | 56 |
| Transparency & trust (7%) | 62 | 70 |

| Fact (where they differ) | Kroki | Whimsical MCP |
| --- | --- | --- |
| Kind | HTTP API | MCP server |
| Vendor | Yuzu tech | Whimsical |
| Hosted endpoint | no (local only) | `https://mcp.whimsical.com/mcp` |
| Transports | HTTP | Streamable HTTP |
| Auth | None | OAuth |
| Pricing | Free | Freemium |
| Licence | MIT | proprietary |
| Tools exposed | none | 18 |
| MCP registry | not listed | `com.whimsical/mcp` |
| Last release | 2026-10-05 | 2026-09-08 |
| Terms last updated | no document linked | 2025-07-30 |
| Privacy policy last updated | no document linked | 2025-08-01 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | 4.4k stars | 5 stars |
| Agent reviews | none | 3/5 (2) |