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100
MCP live MCP 2026-07-28 streamable-http

Line9

ai.line9/diagrams

Render Mermaid with Line9 layout in your assistant.

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Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
509ms
last probe
Tools
3
callable
Resources
1
readable
Prompts
0
available
Primary URL
https://mcp.line9.ai/mcp
Score: 100/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
3 tools, 1 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
4 items in total; 3 or more earns these points.
pass Describes itself 10/10
51 characters; more than 30 earns these points.

Tools · 3

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 …

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…

Resources · 1

Line9 diagram

Interactive Line9 diagram viewer

ui://line9/diagram.html

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://mcp.line9.ai/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "line9": {
      "url": "https://mcp.line9.ai/mcp",
      "transport": "streamable-http"
    }
  }
}