Mermaid Chart

Mermaid Chart is a diagramming tool built on Mermaid syntax, and its MCP server gives Notion AI access to diagram rendering and your Mermaid Chart projects. Ask Notion AI to validate and render a flowchart, summarize what a diagram shows, or save a new diagram to one of your projects. It can also list your projects and update existing diagrams.

With Notion Agent

1. Select Get connection on this page.
2. Sign in with your Mermaid Chart account and approve access.
3. Ask Notion AI to use Mermaid Chart by name.

Try asking:

• "Render this flowchart with Mermaid Chart and check the syntax"
• "List the diagrams in my Architecture project in Mermaid Chart"
• "Save this sequence diagram to my Mermaid Chart project"

With Custom Agents

1. Open your agent's Settings → Tools & Access and select Add connection.
2. Choose Mermaid Chart, sign in, and pick the tools the agent can use.
3. Select Connect. Each agent has its own connection.

MCP connections are available on Business and Enterprise plans, on web and desktop.