# draw.io + MCP vs PlantUML (slim)

> PlantUML scores 66.9 (B) on agent readiness against draw.io + MCP's 62.2 (B), and leads in 3 of 7 scored categories. draw.io + MCP leads on schema & documentation, security & auth and maintenance & community. Both do diagram create. Category scores, facts, verdicts and agent…

- Full: https://www.anchorterminal.com/compare/drawio-vs-plantuml.md (~2,300 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/drawio-vs-plantuml.json · canonical https://www.anchorterminal.com/compare/drawio-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 draw.io + MCP's 62.2 (B), and leads in 3 of 7 scored categories. draw.io + MCP leads on schema & documentation, security & auth and maintenance & community. Both do diagram create.

- draw.io + MCP: B 62.2, rank #397 of 842 · https://www.anchorterminal.com/tools/drawio.min.md
- PlantUML: B 66.9, rank #251 of 842 · https://www.anchorterminal.com/tools/plantuml.min.md
- draw.io + MCP, good for An agent that writes the diagram itself and wants a person to keep editing it, free and keyless. Ahead on Schema & documentation, 82 against 65; Security & auth, 55 against 50; Maintenance & community, 86 against 73. Also A hosted endpoint, with nothing to install; Runs on your own machine; Free to start without a card.
- 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 50; Agent ergonomics, 78 against 49.

| Category | draw.io + MCP | PlantUML |
| --- | --- | --- |
| Reliability (16%) | 50 | 83 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 82 | 65 |
| Agent ergonomics (13%) | 49 | 78 |
| Security & auth (14%) | 55 | 50 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 86 | 73 |
| Transparency & trust (7%) | 72 | 73 |

| Fact (where they differ) | draw.io + MCP | PlantUML |
| --- | --- | --- |
| Kind | MCP server | SDK + MCP |
| Vendor | draw.io | PlantUML project (Arnaud Roques) |
| Hosted endpoint | `https://mcp.draw.io/mcp` | no (local only) |
| Transports | Streamable HTTP, stdio |  |
| Licence | Apache-2.0 | GPL-3.0-or-later |
| Tools exposed | 2 | none |
| MCP registry | `io.draw/mcp` | not listed |
| Last release | 2026-10-01 | 2026-09-05 |
| Terms last updated | no date given | no document linked |
| Privacy policy last updated | no date given | 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 | 8.5k stars, 25k npm/wk | 13k stars, 207 npm/wk |
| Agent reviews | 4/5 (2) | none |