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ChartForge — Prompt to Chart Generator

ChartForge — Prompt to Chart Generator

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github.com/crawdeDeveloper Tools0Updated 28w ago
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About ChartForge — Prompt to Chart Generator

ChartForge is an MCP server that turns natural-language descriptions into chart images. It supports chart generation, revisions, and style selection for Claude users.

Key features

  1. 01Generate charts from natural-language prompts
  2. 02Refine previously generated charts
  3. 03Choose from named style presets
  4. 04Set chart image dimensions
  5. 05Export charts as PNG

Use cases

  1. 01Create a chart from a written data description
  2. 02Revise a chart's appearance or content
  3. 03Produce charts for publication

MCP support

Exposes tools to generate and refine charts and list available styles. MCP clients provide a ChartForge API key to connect.

#charts#data-visualization#ai#png#analytics

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

mcp.json · Universal config
{
  "mcpServers": {
    "chartforge": {
      "command": "npx",
      "args": [
        "-y",
        "chartforge-mcp"
      ],
      "env": {
        "CHARTFORGE_API_KEY": "<CHARTFORGE_API_KEY>"
      }
    }
  }
}
Run commandnpx -y chartforge-mcp
Environment variables to set
CHARTFORGE_API_KEYSecret

Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.

Packages
npmchartforge-mcp

Tools

3

Saved tool list · updated 3w ago

ParameterTypeRequiredDescription
promptstringYesDescription of the chart or diagram to generate. Be specific about data, labels, and what you want to visualize.
styleenumNoVisual style preset. Default: auto (AI chooses best style).midnight | frost | ember | minimal | corporate | neon | light
widthnumberNoWidth in pixels. Default: 1200
heightnumberNoHeight in pixels. Default: 800

Details

From the project README

ChartForge MCP Server

Generate stunning, publication-quality charts and diagrams from natural language — directly inside Claude.

Setup

Claude Desktop

Add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "chartforge": {
      "command": "npx",
      "args": ["chartforge-mcp"],
      "env": {
        "CHARTFORGE_API_KEY": "your_api_key_here"
      }
    }
  }
}
Environment Variables
VariableRequiredDescription
CHARTFORGE_API_KEYYesYour API key from chartforgeai.com
CHARTFORGE_API_URLNoCustom API URL (default: https://chartforgeai.com)

Tools

generate_chart

Generate a chart from a natural language description.

Parameters:

  • prompt (required): Description of the chart
  • style (optional): Style preset — midnight, frost, ember, minimal, corporate, neon, light
  • width (optional): Width in pixels (default: 1200)
  • height (optional): Height in pixels (default: 800)
refine_chart

Modify a previously generated chart.

Parameters:

  • chartId (required): Chart ID from a previous generation
  • modification (required): What to change
list_styles

List available style presets with descriptions.

Examples

"Create a bar chart showing quarterly revenue from $2M to $18M over 3 years"

"System architecture diagram for a microservices backend"

"Sankey diagram of marketing budget flow through channels to conversions"

Comments

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