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Chartone

@zhugejun

Repository

About Chartone

Branded chart rendering for AI agents — hosted MCP server, zero setup

#chart#visualization#mcp#ai-agents#markdown

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "chartone": {
      "command": "npx",
      "args": [
        "-y",
        "@chartone/mcp"
      ],
      "env": {
        "CHARTONE_API_KEY": "your-api-key"
      }
    }
  }
}

Tools

2

Render a branded chart from data and return it as an inline image with a persistent hosted URL. Use this tool any time the user asks to create, generate, or visualize a chart — even when also composing a message, email, or document. After the tool runs, embed the returned URL directly in your response; never write a placeholder like "[chart link]". Without an API key only the "modern" and "minimal" themes are available — default to "modern" unless the user explicitly requests a theme.

Given raw data and a natural-language description of intent (e.g., 'show quarterly sales trends'), ChartOne's AI picks the best chart type and theme, renders the chart, and returns it with a rationale.

Overview

What is Chartone?

Chartone is an MCP server that enables AI agents to render branded charts and return a persistent hosted URL for embedding in READMEs, emails, Slack messages, and docs without manual screenshots. It integrates with any MCP-compatible client and is designed for users who need programmatic chart generation.

How to use Chartone?

Use the render_chart tool to render a chart from data with a specified type and theme, or the suggest_chart tool to describe your data intent in plain language and let Chartone’s AI pick the best chart type and theme. Anonymous mode works without an API key; for higher quota and no watermark, request an API key at chartone.dev.

Key features of Chartone

  • Render branded charts from data and theme
  • Returns inline image plus hosted URL
  • AI suggests chart type from plain language
  • Works without API key (anonymous mode)
  • 7‑day URL persistence with watermark in anonymous mode

Use cases of Chartone

  • Embed Q4 benchmark charts directly into README files
  • Generate bar charts

Comments

Basic information

Category

Other

Transports

stdio

Author

zhugejun

Submitted by

Gejun Zhu

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