Chartone

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Summary

Connects Claude or any MCP client to ChartOne's hosted rendering API. Exposes two tools: render_chart for explicit type and data control, and suggest_chart for intent-based generation where you describe what you want and it picks the chart type and theme. Every render returns both an inline image and a persistent hosted URL, which makes it clean for dropping charts into emails, Slack threads, or PDFs without worrying about attachment limits. Runs via npx with optional API key (anonymous mode adds a watermark). Paid tiers extend URL lifetime and remove branding. Good when you need presentable charts in conversational workflows without spinning up a local plotting stack.

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CodeRabbit

AI writes the code. CodeRabbit catches the slop.

Try For Free →

Lid closed, agents working

Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.

Try free for 7 days →

Block distraction from your iPhone for free

Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.

Block now (100% free) →

Granola, the best AI meeting recorder

Notes, actions and memory. Without a meeting bot. First month 100% off.

Download for free →

belt - the only tool your agent needs

belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...

one prompt install →

Open Steps

Free an open-source skills that make AI coding agents easier to understand, verify, and control.

Download for free →

AppSignal

Monitor with ease. Code with confidence.

Start Free Trial →

Agent, connect blockchain

Connect your Claude agent to live crypto prices and trading routes via 1inch

Get the MCP →

@chartone/mcp

Branded chart rendering for AI agents. Hosted MCP, zero setup.

ChartOne MCP gives any AI agent the ability to produce themed charts and return them as both an inline image and a persistent hosted URL — perfect for emails, Slack messages, PDFs, and dashboards.

Install

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "chartone": {
      "command": "npx",
      "args": ["-y", "@chartone/mcp"],
      "env": {
        "CHARTONE_API_KEY": "sk-..."
      }
    }
  }
}

Restart Claude Desktop. Anonymous mode (no key) returns watermarked charts.

Cursor / Zed / Windsurf

Same config shape, in each client's MCP settings file. See docs.chartone.dev/mcp for current paths.

Hosted endpoint (beta)

For cloud agents that can't run local stdio servers:

POST https://api.chartone.dev/mcp
Authorization: Bearer sk-...   (optional, anonymous returns watermark)
Content-Type: application/json

Body: { "method": "tools/list" }  or  { "method": "tools/call", "params": {...} }

Tools

render_chart — render a chart from explicit type, data, theme.
suggest_chart — give it data + intent ("show quarterly trends"), it picks the chart type/theme and renders.

Both return an inline image plus a persistent hosted URL.