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Mermaid MCP Integration for CrewAI
Connect Mermaid to CrewAI through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.
Connect Mermaid to CrewAI
Expose KosmoKrator integrations to CrewAI workers as scoped local tools.
Wrap kosmo integrations:call for specific tasks or connect workers to a local MCP gateway. The gateway is local, scoped to this integration, and starts with
--write=deny so CrewAI can inspect read-capable tools without receiving write access by default.
Mermaid MCP Config for CrewAI
Use per-worker integration scopes to avoid giving every worker every tool.
{
"mcpServers": {
"kosmokrator-mermaid": {
"type": "stdio",
"command": "kosmo",
"args": [
"mcp:serve",
"--integration=mermaid",
"--write=deny"
]
}
}
}Run the Gateway Manually
kosmokrator mcp:serve --integration=mermaid --write=denyWhy Use KosmoKrator Here
Expose only Mermaid instead of a broad multi-service tool list.
Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.
Start read-only, then opt into ask or allow for trusted workspaces.
Mermaid Tools Visible to CrewAI
CrewAI sees stable MCP tool names generated from the Mermaid integration catalog.
| MCP tool | Source function | Type | Description |
|---|---|---|---|
integration__mermaid__render_mermaid | mermaid.render_mermaid | Write | Render a Mermaid diagram to a PNG image. Pass valid Mermaid syntax and get back a markdown image embed. Supported diagram types: flowchart, sequence, class, state, ER, Gantt, pie, quadrant, requirement, git graph, C4, mindmap, timeline, sankey, XY chart, block. Example syntax: ``` graph TD A[Start] --> B{Decision} B -->|Yes| C[Action] B -->|No| D[End] ``` Tips: - Use `graph TD` for top-down flowcharts, `graph LR` for left-to-right - Use `sequenceDiagram` for sequence diagrams - Use `erDiagram` for entity-relationship diagrams - Use `classDiagram` for class diagrams - Use `stateDiagram-v2` for state diagrams - Use `gantt` for Gantt charts - Use `pie` for pie charts - Use `gitgraph` for git graphs - Use `mindmap` for mind maps |