Now an MCP server for AI agents

Branded chart rendering for AI agents

Hosted MCP, zero setup. Give your agent the ability to render charts and return a hosted URL — embed in markdown READMEs, emails, Slack messages, and docs without copy-pasting screenshots.

Want higher quota or no watermark? Request an API key.

Anonymous mode works without a key — charts return watermarked.

Works in markdown, email, and Slack

Persistent hosted URLs

One-line install

# Add to Claude Desktop, Cursor, Zed, or Windsurf

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

# "Add a chart of our Q4 results to the README"