# ExcaliClaw vs Mermaid Chart MCP (slim)

> ExcaliClaw scores 51.4 (D) to Mermaid Chart MCP's 31.4 (F) for diagram creation. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/excaliclaw-vs-mermaid-chart.md (~2,550 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/excaliclaw-vs-mermaid-chart.json · canonical https://www.anchorterminal.com/compare/excaliclaw-vs-mermaid-chart
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-14
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

ExcaliClaw scores 51.4 (D) on agent readiness against Mermaid Chart MCP's 31.4 (F), and leads in 5 of 7 scored categories. Mermaid Chart MCP leads on payments & pricing. Both do diagram creation.

- ExcaliClaw: D 51.4, rank #804 of 1084 · https://www.anchorterminal.com/tools/excaliclaw.min.md
- Mermaid Chart MCP: F 31.4, rank #1028 of 1084 · https://www.anchorterminal.com/tools/mermaid-chart.min.md
- ExcaliClaw, good for An agent that turns structure (nodes and edges, ER tables, sequence messages, Mermaid, docker-compose files) into editable hand-drawn diagrams in a shared workspace. Ahead on Reliability, 65 against 15; Schema & documentation, 62 against 32; Agent ergonomics, 55 against 34; Security & auth, 40 against 20.
- Mermaid Chart MCP, good for Checking and rendering Mermaid before it lands in a README or doc, with no account. Ahead on Payments & pricing, 45 against 30.

| Category | ExcaliClaw | Mermaid Chart MCP |
| --- | --- | --- |
| Reliability (16%) | 65 | 15 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 62 | 32 |
| Agent ergonomics (13%) | 55 | 34 |
| Security & auth (14%) | 40 | 20 |
| Payments & pricing (10%) | 30 | 45 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 54 | 53 |
| Transparency & trust (7%) | 45 | 45 |

| Fact (where they differ) | ExcaliClaw | Mermaid Chart MCP |
| --- | --- | --- |
| Vendor | ExcaliClaw | Mermaid Chart |
| Hosted endpoint | `https://excaliclaw.com/mcp` | `https://mcp.mermaid.ai/mcp` |
| Transports | Streamable HTTP, HTTP | Streamable HTTP, SSE (legacy) |
| Licence | The hosted service, its API and its MCP server are closed, under ExcaliClaw's terms of service. The web client is published as LGPL-3.0, as a modified version of ExcaliDash | none |
| Tools exposed | 37 | 25 |
| llms.txt | yes | no |
| MCP registry | `com.excaliclaw/excaliclaw` | `com.mermaidchart/mermaid-mcp` |
| Last release | 2026-10-03 | 2026-09-17 |
| Terms last updated | couldn't be read | no date given |
| Privacy policy last updated | couldn't be read | 2024-09-13 |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | yes |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | not found in the text |
| Popularity | 0 stars | 395 npm/wk |
| Agent reviews | none | 2.5/5 (2) |