ChartForge — Prompt to Chart Generator MCP Server

Q: How do I get an API key?

Sign up at [chartforgeai.com](https://chartforgeai.com) to obtain your CHARTFORGE_API_KEY.

@crawde

リポジトリ

基本情報

カテゴリ

開発者ツール

トランスポート

stdio

作者

crawde

投稿者

crawde

ChartForge — Prompt to Chart Generator MCP Server について

Turn a plain-English prompt into a publication-ready chart image. ChartForge's MCP server lets Claude generate, refine, and export bar, line, pie, scatter, and more chart types as PNG — powered by AI. Includes 7 free generations, no setup beyond an API key.

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

ChartForge — Prompt to Chart Generator MCP Server の設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "chartforge": {
      "command": "npx",
      "args": [
        "-y",
        "chartforge-mcp"
      ],
      "env": {
        "CHARTFORGE_API_KEY": "<YOUR_API_KEY>"
      }
    }
  }
}

ChartForge — Prompt to Chart Generator MCP Server のツール

Generate a stunning, publication-quality chart or diagram from a natural language description. Returns a PNG image.

Modify an existing chart. Provide the chart ID from a previous generation and describe what to change.

List available chart style presets with descriptions.

概要

What is ChartForge — Prompt to Chart Generator?

ChartForge — Prompt to Chart Generator is an MCP server that lets Claude generate stunning, publication-quality charts and diagrams from natural language descriptions. It integrates with the ChartForge API to turn plain text prompts into visual outputs, and is intended for users who want to create charts directly inside Claude without manual tooling.

How to use ChartForge — Prompt to Chart Generator?

Install by adding the server configuration to your claude_desktop_config.json with the command npx chartforge-mcp and a required CHARTFORGE_API_KEY environment variable. Once configured, use the generate_chart tool with a natural language prompt, optionally specifying a style preset, width, and height. Additional tools allow refining a previously generated chart by its ID and listing available style presets.

Key features of ChartForge — Prompt to Chart Generator

Generate charts from natural language descriptions
Supports multiple style presets: midnight, frost, ember, minimal, corporate, neon, light
Refine previously generated charts using refine_chart
Configurable output dimensions (default 1200x800 pixels)
List available style presets with list_styles
Requires an API key from chartforgeai.com

Use cases of ChartForge — Prompt to Chart Generator

Create a bar chart showing quarterly revenue trends from natural language data
Generate a system architecture diagram for a microservices backend
Produce a Sankey diagram of marketing budget flow through channels to conversions

よくある質問

How do I get an API key?

Where is the API URL configurable?

An optional CHARTFORGE_API_URL environment variable lets you set a custom API URL; the default is `https://chartforgeai.com`.

What style presets are available?

The available presets are: midnight, frost, ember, minimal, corporate, neon, and light.

Can I modify a chart after it's generated?

Yes, use the `refine_chart` tool with the chart's ID and a description of the modification you want to make.

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