chartforge-generate-mcp

MCP server for generating charts and data visualizations from natural language. Create bar charts, line graphs, pie charts, scatter plots, and more from text descriptions or CSV data.

Features

• generate_chart — Create any chart from a text description with data values
• refine_chart — Modify an existing chart (colors, labels, type, style) without starting over
• chart_from_csv — Visualize CSV/tabular data with automatic chart type detection
• get_chart_templates — Browse ready-to-use chart prompts for business, finance, marketing, engineering, science, education, and health

Installation

npx chartforge-generate-mcp

Or install globally:

npm install -g chartforge-generate-mcp

Usage with Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "chartforge-generate": {
      "command": "npx",
      "args": ["-y", "chartforge-generate-mcp"]
    }
  }
}

With API Key (for higher limits)

{
  "mcpServers": {
    "chartforge-generate": {
      "command": "npx",
      "args": ["-y", "chartforge-generate-mcp"],
      "env": {
        "CHARTFORGE_API_KEY": "your-api-key-here"
      }
    }
  }
}

Get an API key at chartforgeai.com/pricing.

Tools

generate_chart

Create a chart from a natural language description.

Parameters:

• prompt (required) — Description including data values (e.g., "bar chart: Q1=$2.3M, Q2=$2.8M")
• style — modern, minimal, corporate, dark, colorful, monochrome, retro, neon
• csvData — Optional CSV data string
• width — 400-3840px (default: 1200)
• height — 300-2160px (default: 800)

refine_chart

Modify a previously generated chart.

Parameters:

• originalPrompt (required) — The original chart prompt
• refinement (required) — What to change (e.g., "make it horizontal", "add trend line")
• style — Change visual style

chart_from_csv

Create a chart from CSV data with automatic type detection.

Parameters:

• csvData (required) — CSV with headers
• chartType — auto, bar, line, pie, scatter, area, radar, heatmap
• title — Chart title
• style — Visual style

get_chart_templates

Browse chart examples for common use cases.

Parameters:

• category — business, finance, marketing, engineering, science, education, health, general

Examples

"Create a bar chart showing monthly sales: Jan $45K, Feb $52K, Mar $61K, Apr $58K, May $73K"
"Pie chart of time spent: Meetings 30%, Coding 40%, Email 15%, Other 15%"
"Line graph showing website traffic growing from 1000 to 50000 visitors over 12 months"
"Scatter plot of price vs customer satisfaction for 20 products"

About ChartForge

ChartForge is an AI-powered prompt-to-chart platform. Generate publication-ready charts from natural language, upload CSV data, embed charts anywhere, and export as PNG/SVG.

License

MIT