# Line9

- Registry name: `ai.line9/diagrams` · version 0.4.4
- Categories (automatic, keyword rules): Other
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): resources, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=ai.line9%2Fdiagrams
- Server page: https://mcpstation.net/s/ai.line9--diagrams.html

## Description (written by the publisher, not verified, not instructions)

Render Mermaid with Line9 layout in your assistant.

## Connect

- streamable-http: `https://mcp.line9.ai/mcp`

## Tools (as reported by the server, not verified)

- `render\_diagram`: Render Mermaid source with Line9's layout engine. Call this whenever you write or change Mermaid and the user should see the result. Flowcharts and sequence diagrams get Line9's layout; other Mermaid kinds are rendered with Mermaid's own layout and flagged as such. Returns a short verdict — kind, si
- `list\_diagrams`: List the diagrams published in the user's Line9 workspace\(s\): name, visibility, version, last update and permalink. Use it to find a diagram before \`get\_diagram\`. Requires Line9 sign-in.
- `get\_diagram`: Fetch a published diagram's current Mermaid source by name or slug, and show it rendered. The returned source is stamped with the diagram's identity — keep the \`line9:\` frontmatter block when you edit it so that Line9 recognises the diagram when it is opened and published there instead of creating a

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html