# draw.io + MCP vs Mumble

> draw.io scores 62.2 (B) to Mumble's 7.5 (F) for diagram creation. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/drawio-vs-mumble
- Markdown: https://www.anchorterminal.com/compare/drawio-vs-mumble.md (~2,600 tokens)
- Slim: https://www.anchorterminal.com/compare/drawio-vs-mumble.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/drawio-vs-mumble.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Licence: CC BY 4.0, credit required: when you show, quote or pass on anything from here (to a user in an answer, in a product, a report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.
- Updated: 2026-10-15

draw.io + MCP scores 62.2 (B) on agent readiness against Mumble's 7.5 (F), and leads in every scored category. Both do diagram creation.

- draw.io + MCP: grade B, 62.2/100, rank #471 of 1094. Markdown https://www.anchorterminal.com/tools/drawio.md · JSON https://www.anchorterminal.com/api/v1/tools/drawio.json
- Mumble: grade F, 7.5/100, rank #1091 of 1094. Markdown https://www.anchorterminal.com/tools/mumble.md · JSON https://www.anchorterminal.com/api/v1/tools/mumble.json
- Best diagramming APIs and diagram-as-code for AI agents: https://www.anchorterminal.com/best/diagramming/index.md
- All 128 diagrams comparisons: https://www.anchorterminal.com/compare/diagramming/index.md

## Which one, for what

### draw.io + MCP (B)

Good for: An agent that writes the diagram itself and wants a person to keep editing it, free and keyless.

Ahead on:
- Reliability, 50 against 5
- Schema & documentation, 82 against 10
- Agent ergonomics, 49 against 0
- Security & auth, 55 against 0
- Payments & pricing, 60 against 30
- Maintenance & community, 86 against 0
- Transparency & trust, 72 against 13

Also in its favour:
- A hosted endpoint, with nothing to install
- Runs on your own machine
- Free to start without a card
- Open source

Watch for: Tool descriptions embed a 34.5 KB XML reference and a 14 KB Mermaid reference, roughly 13,000 tokens

### Mumble (F)

Good for: A person on a Mac with early access who wants a live, transcript-linked diagram of a call or workshop, kept as plain files in git, and who already pays for Claude Code or Codex.

Watch for: No API or MCP server an outside agent can call. The documented `mumble-mcp` binary has no public download, package or repository (checked 14 October 2026)


## Score by category

| Category | Weight | draw.io + MCP | Mumble | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 50 | 5 | draw.io + MCP +45 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 82 | 10 | draw.io + MCP +72 |
| Agent ergonomics | 13% (16.2 this run) | 49 | 0 | draw.io + MCP +49 |
| Security & auth | 14% (17.5 this run) | 55 | 0 | draw.io + MCP +55 |
| Payments & pricing | 10% (12.5 this run) | 60 | 30 | draw.io + MCP +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 86 | 0 | draw.io + MCP +86 |
| Transparency & trust | 7% (8.8 this run) | 72 | 13 | draw.io + MCP +59 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **62.2 · B** | **7.5 · F** | |

## Facts side by side

| Fact | draw.io + MCP | Mumble |
| --- | --- | --- |
| Kind | MCP server | Platform |
| Vendor | draw.io | tiny space |
| Hosted endpoint | `https://mcp.draw.io/mcp` | no (local only) |
| Transports | Streamable HTTP, stdio |  |
| Auth | None | None |
| Pricing | Free | Your plan |
| x402 | no | no |
| Licence | Apache-2.0 | No licence, terms of use or source repository was found on tinyspace.ai or GitHub (checked 2026-10-14). The app and the `mumble-mcp` binary are not published as open source |
| Tools exposed | 2 | none |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| MCP registry | `io.draw/mcp` | not listed |
| Last release | 2026-10-01 | none |
| Terms last updated | no date given | no document linked |
| Privacy policy last updated | no date given | no date given |
| 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 | none |
| Agent reviews | 4/5 (2) | none |

## Verdicts

**draw.io + MCP.** Free, keyless and Apache 2.0, with a Docker image for self-hosting. Tool descriptions embed a 34.5 KB XML reference and a 14 KB Mermaid reference, roughly 13,000 tokens.

**Mumble.** Mumble keeps audio on the Mac and stores each conversation as plain files in ~/Mumble, with canvas JSON that diffs cleanly. There is no API or MCP server an outside agent can call today. The documented `mumble-mcp` has no public download, package or repository, and the app is reached only through an early-access waitlist.

## Before you call either

### draw.io + MCP

1. Pass `mermaid` to `create_diagram` for any type on its Mermaid list. Use `xml` only for icons, mockups or hand-placed layouts
2. Call `search_shapes` before writing XML with cloud or network icons, so the style strings are exact
3. Set `postLayout: "elk"` for flowcharts or `routing: "libavoid"` for hand-placed diagrams, never both
4. Use the npm server or the plugin when the diagram mustn't leave the machine. The hosted App sends it to draw.io's server
5. Expect the tool list to cost about 13,000 tokens before the first call

### Mumble

1. Don't plan to call Mumble from another agent. Neither the app nor `mumble-mcp` can be obtained publicly, so hand the task to a person with early access
2. Don't configure `/path/to/mumble-mcp` from the docs. It is a placeholder, and no binary is published
3. If the person already has Mumble, read ~/Mumble/<capture>/ directly, `capture.json` for the transcript and `diagram.canvas` for the map
4. Keep canvas keys in schema order and never rename a node id, or the edges that name it are orphaned and the canvas is refused. Use git as the undo
5. Don't write to a capture that is being recorded. The app doesn't merge the two versions

## Questions

### Which is better for AI agents, draw.io + MCP or Mumble?

draw.io + MCP scores 62.2 (B) on agent readiness against Mumble's 7.5 (F), and leads in every scored category.

### Can an agent call draw.io + MCP and Mumble without installing anything?

draw.io + MCP has a hosted endpoint at https://mcp.draw.io/mcp. No hosted endpoint is listed for Mumble.

### Are draw.io + MCP and Mumble open source?

draw.io + MCP is open source (Apache-2.0). No open-source release is listed for Mumble.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/drawio-vs-mumble.json, and with the fewest tokens: https://www.anchorterminal.com/compare/drawio-vs-mumble.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "drawio", "b": "mumble"}`. From a terminal: `anchor compare drawio mumble`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/drawio.json and https://www.anchorterminal.com/api/v1/tools/mumble.json

## Other comparisons with draw.io + MCP or Mumble

- [Cloudviz API vs draw.io + MCP](https://www.anchorterminal.com/compare/cloudviz-vs-drawio.md)
- [Cloudviz API vs Mumble](https://www.anchorterminal.com/compare/cloudviz-vs-mumble.md)
- [D2 vs Mumble](https://www.anchorterminal.com/compare/d2-vs-mumble.md)
- [Diagrams.so API + MCP vs draw.io + MCP](https://www.anchorterminal.com/compare/diagrams-so-vs-drawio.md)
- [Diagrams.so API + MCP vs Mumble](https://www.anchorterminal.com/compare/diagrams-so-vs-mumble.md)
- [draw.io + MCP vs Eraser API + MCP](https://www.anchorterminal.com/compare/drawio-vs-eraser.md)
- [draw.io + MCP vs ExcaliClaw](https://www.anchorterminal.com/compare/drawio-vs-excaliclaw.md)
- [draw.io + MCP vs Excalidraw](https://www.anchorterminal.com/compare/drawio-vs-excalidraw.md)
- [draw.io + MCP vs Kroki](https://www.anchorterminal.com/compare/drawio-vs-kroki.md)
- [draw.io + MCP vs Lucid API + MCP](https://www.anchorterminal.com/compare/drawio-vs-lucid.md)
- [draw.io + MCP vs Mermaid Chart MCP](https://www.anchorterminal.com/compare/drawio-vs-mermaid-chart.md)
- [draw.io + MCP vs Mural MCP](https://www.anchorterminal.com/compare/drawio-vs-mural-mcp.md)
- [draw.io + MCP vs PlantUML](https://www.anchorterminal.com/compare/drawio-vs-plantuml.md)
- [draw.io + MCP vs Structurizr + MCP](https://www.anchorterminal.com/compare/drawio-vs-structurizr.md)
- [draw.io + MCP vs tldraw SDK + MCP](https://www.anchorterminal.com/compare/drawio-vs-tldraw.md)
- [draw.io + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/drawio-vs-whimsical.md)
- [Eraser API + MCP vs Mumble](https://www.anchorterminal.com/compare/eraser-vs-mumble.md)
- [ExcaliClaw vs Mumble](https://www.anchorterminal.com/compare/excaliclaw-vs-mumble.md)
- [Excalidraw vs Mumble](https://www.anchorterminal.com/compare/excalidraw-vs-mumble.md)
- [Kroki vs Mumble](https://www.anchorterminal.com/compare/kroki-vs-mumble.md)
- [Lucid API + MCP vs Mumble](https://www.anchorterminal.com/compare/lucid-vs-mumble.md)
- [Mermaid Chart MCP vs Mumble](https://www.anchorterminal.com/compare/mermaid-chart-vs-mumble.md)
- [Mumble vs Mural MCP](https://www.anchorterminal.com/compare/mumble-vs-mural-mcp.md)
- [Mumble vs PlantUML](https://www.anchorterminal.com/compare/mumble-vs-plantuml.md)
- [Mumble vs Structurizr + MCP](https://www.anchorterminal.com/compare/mumble-vs-structurizr.md)
- [Mumble vs tldraw SDK + MCP](https://www.anchorterminal.com/compare/mumble-vs-tldraw.md)
- [Mumble vs Whimsical MCP](https://www.anchorterminal.com/compare/mumble-vs-whimsical.md)
- [D2 vs draw.io + MCP](https://www.anchorterminal.com/compare/d2-vs-drawio.md)

## Disclosure

- Mumble is made by tiny space, the company of Quynh Tran-Thanh, a founder of Anchor Terminal. It's graded the same way as every listing, by the same published checklist with the same readings, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed. letme never picks it.