generate_bar_chart

Create a bar chart for visualizing numerical comparisons across categories using MCP ECharts. Customize axes, titles, themes, and group/stack data for clear horizontal analysis. Export charts in multiple formats.

Instructions

Generate a bar chart to show data for numerical comparisons among different categories, such as, comparing categorical data and for horizontal comparisons.

Input Schema

Name	Required	Description	Default
`axisXTitle`	No	Set the x-axis title of chart.
`axisYTitle`	No	Set the y-axis title of chart.
`data`	Yes	Data for bar chart, such as, [{ category: 'Category A', value: 10 }, { category: 'Category B', value: 20 }] or [{ category: 'Category A', value: 10, group: 'Group A' }].
`group`	No	Whether grouping is enabled. When enabled, bar charts require a 'group' field in the data. When `group` is true, `stack` should be false.
`height`	No	Set the height of the chart, default is 600px.
`stack`	No	Whether stacking is enabled. When enabled, bar charts require a 'group' field in the data. When `stack` is true, `group` should be false.
`theme`	No	Set the theme for the chart, optional, default is 'default'.	default
`title`	No	Set the title of the chart.
`width`	No	Set the width of the chart, default is 800px.

Input Schema (JSON Schema)

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "axisXTitle": {
      "default": "",
      "description": "Set the x-axis title of chart.",
      "type": "string"
    },
    "axisYTitle": {
      "default": "",
      "description": "Set the y-axis title of chart.",
      "type": "string"
    },
    "data": {
      "description": "Data for bar chart, such as, [{ category: 'Category A', value: 10 }, { category: 'Category B', value: 20 }] or [{ category: 'Category A', value: 10, group: 'Group A' }].",
      "items": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "Category of the data point, such as 'Category A'.",
            "type": "string"
          },
          "group": {
            "description": "Group name for multiple series, used for grouping or stacking",
            "type": "string"
          },
          "value": {
            "description": "Value of the data point, such as 10.",
            "type": "number"
          }
        },
        "required": [
          "category",
          "value"
        ],
        "type": "object"
      },
      "minItems": 1,
      "type": "array"
    },
    "group": {
      "default": false,
      "description": "Whether grouping is enabled. When enabled, bar charts require a 'group' field in the data. When `group` is true, `stack` should be false.",
      "type": "boolean"
    },
    "height": {
      "default": 600,
      "description": "Set the height of the chart, default is 600px.",
      "exclusiveMinimum": 0,
      "type": "integer"
    },
    "stack": {
      "default": false,
      "description": "Whether stacking is enabled. When enabled, bar charts require a 'group' field in the data. When `stack` is true, `group` should be false.",
      "type": "boolean"
    },
    "theme": {
      "default": "default",
      "description": "Set the theme for the chart, optional, default is 'default'.",
      "enum": [
        "default",
        "dark"
      ],
      "type": "string"
    },
    "title": {
      "description": "Set the title of the chart.",
      "type": "string"
    },
    "width": {
      "default": 800,
      "description": "Set the width of the chart, default is 800px.",
      "exclusiveMinimum": 0,
      "type": "integer"
    }
  },
  "required": [
    "data"
  ],
  "type": "object"
}

MCP ECharts

generate_bar_chart

Instructions

Input Schema

Input Schema (JSON Schema)

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MCP directory API