MCP Charts & Visualization Server
Project description
AppKit MCP Charts Server
FastMCP server for generating interactive data visualizations powered by Plotly.
Features
- 5 chart types: Vertical bar, horizontal bar, pie/donut, line/scatter, and bubble charts
- MCP App views: Each tool is backed by a shared
chart_viewresource rendered as an interactive iframe — no separate frontend needed - Plotly 6: Full interactivity (zoom, pan, export to PNG) via CDN-hosted Plotly JS
- Unauthenticated tools: Visualization tools require no credentials, suitable for public assistant access
- Structured generators:
BaseChartGeneratorABC with per-chart subclasses — easy to extend
Tools
| Tool | Description |
|---|---|
generate_barchart |
Vertical grouped/stacked bar chart |
generate_horizontal_bar_chart |
Horizontal grouped/stacked bar chart |
generate_pie_chart |
Pie or donut chart |
generate_line_chart |
Line, scatter, or lines+markers chart |
generate_bubble_chart |
Bubble (size-encoded scatter) chart |
All tools accept a data parameter — a list of row dicts — and return {success, html, error} JSON.
Installation
uv add appkit-mcp-charts
Usage
from appkit_mcp_charts.server import create_charts_mcp_server
mcp = create_charts_mcp_server(name="my-charts")
Dependencies
plotly >= 6.5.2appkit-mcp-commonsappkit-commons
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