Chartone vs Microcharts

A side-by-side look at the Chartone and Microcharts MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Chartone logoChartoneData Visualization · Local subprocess (stdio)Render themed charts as hosted URLs. Embed in markdown, emails, and Slack. Hosted MCP, zero setup.49FairAuth: not declaredMicrocharts logoMicrochartsData Visualization · Local subprocess (stdio)Word-sized charts (sparklines, bars, bullets — 106 types) rendered to self-contained SVG with generated alt text. Three tools: find the right chart for a question, get its wiring, render it. Works in chat surfaces that can't run React. Install via npx -y @microcharts/mcp.69GreatAuth: no auth required

Verdict: choose Chartone for data visualization work as a local process; choose Microcharts for data visualization as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Chartone logoChoose Chartone when

  • You need dedicated capabilities in the Data Visualization domain.
  • You prefer a local stdio subprocess transport.
  • You have the keys it needs: CHARTONE_API_KEY.
  • You want tools like render_chart, suggest_chart.
Explore Chartone

Microcharts logoChoose Microcharts when

  • You need dedicated capabilities in the Data Visualization domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
  • You want tools like find_microchart, get_microchart, render_microchart.
Explore Microcharts

Feature & specification comparison

Rows where the two servers differ are marked.

SpecChartone logoChartoneMicrocharts logoMicrocharts
CategoryData VisualizationData Visualization
Quality signal49/100 · Fair69/100 · Great
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNo auth required
PricingNot declaredFree
Required env varsCHARTONE_API_KEYNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars0204
Directory activity 2 views 0 installs 0 upvotes 4 views 0 installs 0 upvotes
Tools23

Tools & capabilities

Chartone tools 2

  • render_chart
  • suggest_chart

Microcharts tools 3

  • find_microchartRank microcharts chart types against a plain-language question about data ("is it trending?", "error budget", "part to whole"). Returns candidates with the reason each matched. Start here when you know the question, not the chart.
  • get_microchartFull wiring detail for one chart by slug: import paths, its props plus the shared props, data shape, best/avoid guidance, a copy-runnable example, and `sample` — the example as JSON props you can pass straight to render_microchart.
  • render_microchartRender a chart to a finished, self-contained SVG (styles embedded) plus its generated alt text — for surfaces that can't run React. Pass the series as `data`; put other props (value, target, curve, color, width) in `props`. Each chart takes its own data shape — get_microchart returns a valid `sample` to adapt.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Chartone

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "chartone-2": {
      "command": "npx",
      "args": [
        "-y",
        "@chartone/mcp"
      ],
      "env": {
        "CHARTONE_API_KEY": "YOUR_CHARTONE_API_KEY_HERE"
      }
    }
  }
}

Microcharts

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "ganapativs-microcharts": {
      "command": "npx",
      "args": [
        "-y",
        "@microcharts/mcp"
      ]
    }
  }
}

Frequently asked questions

Chartone is categorized under Data Visualization and uses a local stdio subprocess. Microcharts belongs to Data Visualization and uses a local stdio subprocess. Pick Chartone for data visualization work and Microcharts for data visualization.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Chartone has no declared pricing — check the project's own site. Microcharts is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add chartone-2 and ganapativs-microcharts as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Chartone has a quality signal of 49/100 (Fair) with 2 views, 0 installs and 0 GitHub stars. Microcharts has 69/100 (Great) with 4 views, 0 installs and 204 GitHub stars.