Mermaid AI agents in Confluence: RVS, Gliffy, Mermaid Plus
Three Marketplace apps now put an AI agent behind Mermaid in Confluence: RVS Mermaid Diagrams & Charts, Gliffy Diagrams, and Mermaid Plus Diagrams & AI Agent for Confluence. All three can turn a sentence into a diagram. They differ in three things that decide long-term value: what the Mermaid source becomes (page text that diffs, or shapes where the code dies), how much the agent can do (generate once, or create-read-update-convert), and which Mermaid engine is behind it (Gliffy lists 9 formats, RVS 12 types, Mermaid Plus runs all 30 Mermaid v12 types on the 12.3 engine — including the 12.x additions no other agent can draw: Wardley maps, event modeling, BPMN shapes, step animation and agent flows).
- Which three apps ship a Mermaid AI agent for Confluence in 2026, and what each actually does
- What's new in Mermaid 12.x — and why engine freshness is part of the agent comparison
- What happens to the Mermaid source in each app after the AI is done
- How this plays out for architecture diagrams specifically
- A decision framework — and the pricing picture
For years, "should we use Mermaid in Confluence?" was a question about editors. In 2026 it became a question about agents: every serious diagramming app on the Marketplace now promises that you can ask for a diagram in plain language and get one. Three of them promise it around Mermaid specifically, and they take visibly different approaches.
This guide compares Mermaid Plus Diagrams & AI Agent for Confluence, RVS Softek's Mermaid Diagrams & Charts for Confluence, and Gliffy Diagrams for Confluence — on what their agents are documented to do, what happens to your diagram source afterwards, and which Mermaid engine each one runs. Every competitor claim here comes from the vendor's own listing or documentation.