Summary
Connects Claude to the ChartForge API for generating publication-quality visualizations from natural language prompts. Exposes three tools: generate_chart takes a description plus optional style presets (midnight, frost, ember, minimal, corporate, neon, light) and dimensions, refine_chart modifies existing charts by ID, and list_styles shows available themes. Requires a ChartForge API key. Reach for this when you need to create bar charts, architecture diagrams, Sankey flows, or other visualizations without writing plotting code. The natural language interface means you describe what you want and get back rendered images, making it faster than configuring matplotlib or D3 manually.
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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
| Variable | Required | Description |
|---|---|---|
CHARTFORGE_API_KEY | Yes | Your API key from chartforgeai.com |
CHARTFORGE_API_URL | No | Custom API URL (default: https://chartforgeai.com) |
Tools
generate_chart
Generate a chart from a natural language description.
Parameters:
prompt(required): Description of the chartstyle(optional): Style preset —midnight,frost,ember,minimal,corporate,neon,lightwidth(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 generationmodification(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"
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Download Free life-time →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
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Get the MCP →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →Configuration
CHARTFORGE_API_KEYsecretYour ChartForge API key from chartforgeai.com