APIs, MCP servers and models to draw diagrams
6 tools in the catalog do this, by name.
EraserAPIDiagram API and MCP server that turns prompts or diagram code into diagrams
ExcalidrawPackageOpen-source hand-drawn-style canvas, usable as a free npm React component
KrokiAPIDiagram rendering API for PlantUML, Mermaid, Graphviz, D2 and more
Lucid (Lucidchart / Lucidspark)PlatformDiagramming and whiteboard suite with a REST API for documents and content
QuickChartAPIChart image API that turns a Chart.js config into a PNG, SVG or PDF
WhimsicalPlatformVisual workspace for boards, flowcharts, wireframes and mind maps
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