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_view resource 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: BaseChartGenerator ABC with per-chart subclasses — easy to extend

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.

uv add appkit-mcp-charts

from appkit_mcp_charts.server import create_charts_mcp_server

mcp = create_charts_mcp_server(name="my-charts")

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