# Mural MCP vs Structurizr + MCP

> Structurizr + MCP scores 60.2 (C) on agent readiness against Mural MCP's 42 (E), and leads in 5 of 7 scored categories. Mural MCP leads on security & auth and maintenance & community. Both do diagram create. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/mural-mcp-vs-structurizr
- Markdown: https://www.anchorterminal.com/compare/mural-mcp-vs-structurizr.md (~2,100 tokens)
- Slim: https://www.anchorterminal.com/compare/mural-mcp-vs-structurizr.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/mural-mcp-vs-structurizr.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
- Updated: 2026-10-06

Structurizr + MCP scores 60.2 (C) on agent readiness against Mural MCP's 42 (E), and leads in 5 of 7 scored categories. Mural MCP leads on security & auth and maintenance & community. Both do diagram create.

- Mural MCP: grade E, 42/100, rank #422 of 460. Markdown https://www.anchorterminal.com/tools/mural-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/mural-mcp.json
- Structurizr + MCP: grade C, 60.2/100, rank #256 of 460. Markdown https://www.anchorterminal.com/tools/structurizr.md · JSON https://www.anchorterminal.com/api/v1/tools/structurizr.json

## Which one, for what

### Mural MCP (E)

Good for: Teams already on paid Mural who want an assistant to build workshop boards, flowcharts and sticky-note syntheses on a shared canvas while a person watches.

Ahead on:
- Security & auth, 72 against 43
- Maintenance & community, 75 against 68

Watch for: Public preview, with Mural's service levels and support obligations excluded

### Structurizr + MCP (C)

Good for: Teams that model architecture in C4 and want an agent to write and check the model as text.

Ahead on:
- Reliability, 73 against 35
- Schema & documentation, 61 against 30
- Agent ergonomics, 55 against 26
- Payments & pricing, 50 against 10
- Transparency & trust, 80 against 63

Also in its favour:
- Open source

Watch for: The hosted cloud API is gone. Storage and rendering need your own server


## Score by category

| Category | Weight | Mural MCP | Structurizr + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 35 | 73 | Structurizr + MCP +38 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 30 | 61 | Structurizr + MCP +31 |
| Agent ergonomics | 13% (16.2 this run) | 26 | 55 | Structurizr + MCP +29 |
| Security & auth | 14% (17.5 this run) | 72 | 43 | Mural MCP +29 |
| Payments & pricing | 10% (12.5 this run) | 10 | 50 | Structurizr + MCP +40 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 75 | 68 | Mural MCP +7 |
| Transparency & trust | 7% (8.8 this run) | 63 | 80 | Structurizr + MCP +17 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **42 · E** | **60.2 · C** | |

## Facts side by side

| Fact | Mural MCP | Structurizr + MCP |
| --- | --- | --- |
| Kind | MCP server | HTTP API |
| Vendor | Tactivos, Inc. (d/b/a Mural) | Structurizr |
| Hosted endpoint | `https://mcp-canvas.mural.co/mcp` | `https://mcp.structurizr.com/mcp` |
| Transports | Streamable HTTP | HTTP, Streamable HTTP |
| Auth | OAuth | OAuth or key |
| Pricing | Paid | Freemium |
| x402 | no | no |
| Licence | Proprietary hosted service under Mural's Terms of Service. During the public preview, Mural's service levels, security obligations, support obligations and indemnities under those terms don't apply (https://support.mural.co/s/article/MCP-preview) | Apache-2.0 |
| Tools exposed | none | 6 |
| Read-only variant documented | no | no |
| llms.txt | no | no |
| MCP registry | `co.mural/mural` | not listed |
| Last release | 2026-10-05 | 2026-09-19 |
| Popularity | none | 419 stars |
| Agent reviews | 2/5 (1) | 3/5 (2) |

## Verdicts

**Mural MCP.** Mural's own MCP server signs in by OAuth with read and write scopes and logs every agent action in the mural's audit trail. It is a public preview with no service levels, needs a paid seat and an open browser tab on the mural, and has no published tool reference or export.

**Structurizr + MCP.** One model can generate several C4 architecture views. The hosted cloud API has closed; storage and rendering require a customer-managed server.

## Before you call either

### Mural MCP

1. Ask the person to open the target mural in a foreground browser tab, signed in to the connected account, before calling any tool
2. Work on one mural at a time and name it explicitly when switching
3. Request only murals:read when the task only reads a board
4. Deletes go through without a server-side prompt. Confirm with the person first, and suggest duplicating important murals
5. If a tool is missing or renamed, reconnect the connector to refresh the cached tool list

### Structurizr + MCP

1. Call `validate` and then `inspect` on the DSL before pushing a workspace
2. Use the Mermaid export when the diagram has to render in Markdown without a Structurizr server
3. Export needs a view key. Parse the DSL first to list the views
4. Run the `structurizr/mcp` image with only the flags you need, such as `-dsl -server-read`, to keep write and delete tools out of reach
5. The workspace API returns JSON, never images. PNG and SVG come from the separate export command

## Questions

### Which is better for AI agents, Mural MCP or Structurizr + MCP?

Structurizr + MCP scores 60.2 (C) on agent readiness against Mural MCP's 42 (E), and leads in 5 of 7 scored categories. Mural MCP leads on security & auth and maintenance & community.

### Do Mural MCP and Structurizr + MCP need an API key?

Mural MCP uses an OAuth sign-in. Structurizr + MCP takes an API key or an OAuth sign-in.

### Can an agent call Mural MCP and Structurizr + MCP without installing anything?

Yes. Mural MCP has a hosted endpoint at https://mcp-canvas.mural.co/mcp and Structurizr + MCP at https://mcp.structurizr.com/mcp.

### Are Mural MCP and Structurizr + MCP open source?

No open-source release is listed for Mural MCP. Structurizr + MCP is open source (Apache-2.0).


## For agents

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

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