# Cloudviz API vs PlantUML (slim)

> PlantUML scores 66.9 (B) on agent readiness against Cloudviz API's 37.7 (F), and leads in 6 of 7 scored categories. Both do diagram create. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/cloudviz-vs-plantuml.md (~2,200 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/cloudviz-vs-plantuml.json · canonical https://www.anchorterminal.com/compare/cloudviz-vs-plantuml
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

PlantUML scores 66.9 (B) on agent readiness against Cloudviz API's 37.7 (F), and leads in 6 of 7 scored categories. Both do diagram create.

- Cloudviz API: F 37.7, rank #818 of 842 · https://www.anchorterminal.com/tools/cloudviz.min.md
- PlantUML: B 66.9, rank #251 of 842 · https://www.anchorterminal.com/tools/plantuml.min.md
- Cloudviz API, good for Documenting what already runs in AWS, for example regenerating a diagram after each deploy and posting it to Confluence or Slack. Also A hosted endpoint, with nothing to install.
- PlantUML, good for Agents that write sequence, class, state, component, deployment, Gantt or C4 diagrams as text and render them locally or in CI. Ahead on Reliability, 83 against 20; Schema & documentation, 65 against 58; Agent ergonomics, 78 against 50; Payments & pricing, 60 against 20; Maintenance & community, 73 against 5; Transparency & trust, 73 against 45. Also No key needed to call it; Open source.

| Category | Cloudviz API | PlantUML |
| --- | --- | --- |
| Reliability (16%) | 20 | 83 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 58 | 65 |
| Agent ergonomics (13%) | 50 | 78 |
| Security & auth (14%) | 53 | 50 |
| Payments & pricing (10%) | 20 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 5 | 73 |
| Transparency & trust (7%) | 45 | 73 |

| Fact (where they differ) | Cloudviz API | PlantUML |
| --- | --- | --- |
| Kind | HTTP API | SDK + MCP |
| Vendor | Cloudviz | PlantUML project (Arnaud Roques) |
| Hosted endpoint | `https://api.cloudviz.io` | no (local only) |
| Transports | HTTP |  |
| Auth | API key | None |
| Pricing | Paid | Free |
| Licence | none | GPL-3.0-or-later |
| Read-only variant documented | yes | no |
| Last release | none | 2026-09-05 |
| Terms last updated | 2019-03-26 | no document linked |
| Privacy policy last updated | couldn't be read | no document linked |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| 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 | not found in the text |  |
| Popularity | none | 13k stars, 207 npm/wk |
| Agent reviews | 2.5/5 (2) | none |