Connect Line9 and your agent gets 3 tools, among them get_diagram, list_diagrams, render_diagram. It answers at https://mcp.line9.ai/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 4 of 4 times since 17 September 2026; the last check, on 25 October 2026, succeeded.
Render Mermaid with Line9 layout in your assistant.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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 Inputs: diagram |
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. Inputs: query, limit |
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 la Inputs: source, plan |
Every block below points at https://mcp.line9.ai/mcp. Pick your client and copy.
claude mcp add --transport http line9 https://mcp.line9.ai/mcp
{
"mcpServers": {
"line9": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.line9.ai/mcp"]
}
}
}{
"mcpServers": {
"line9": {
"url": "https://mcp.line9.ai/mcp"
}
}
}{
"servers": {
"line9": {
"type": "http",
"url": "https://mcp.line9.ai/mcp"
}
}
}{
"context_servers": {
"line9": {
"url": "https://mcp.line9.ai/mcp"
}
}
}{
"mcpServers": {
"line9": {
"serverUrl": "https://mcp.line9.ai/mcp"
}
}
}{
"mcpServers": {
"line9": {
"url": "https://mcp.line9.ai/mcp"
}
}
}name: Line9
version: 0.0.1
schema: v1
mcpServers:
- name: Line9
type: streamable-http
url: https://mcp.line9.ai/mcp{
"mcpServers": {
"line9": {
"httpUrl": "https://mcp.line9.ai/mcp"
}
}
}{
"mcpServers": {
"line9": {
"type": "http",
"url": "https://mcp.line9.ai/mcp"
}
}
}{
"mcpServers": {
"line9": {
"url": "https://mcp.line9.ai/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.line9.ai%2Fmcp&type=streamable_http&id=line9&name=Line9
It answered our last check on 25 October 2026 in 524 ms. Over 4 checks since 17 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by line9.ai and served from mcp.line9.ai, the vendor's own domain: https://mcp.line9.ai/mcp.
3, as returned by the server's own tools/list on 24 September 2026: get_diagram, list_diagrams, render_diagram.
It answered our last check on 25 October 2026 in 524 ms. Over 4 checks since 17 September 2026 it answered 4.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.line9.ai/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: ai.line9. Endpoint host: mcp.line9.ai. ARD identifier: urn:air:ai.line9:mcp:diagrams.
First indexed 17 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.