MCP Tools Reference: sheetsmcp.googleapis.com

Tool: insert_dimension

Inserts rows or columns in a sheet at a particular index.

Corresponds to an InsertDimensionRequest in the spreadsheets.batchUpdate REST API: https://developers.google.com/workspace/sheets/api/reference/rest/v4/spreadsheets/request

Schema: - spreadsheet_id (string, required): The ID of the spreadsheet to update. - sheet_id (integer, required): The ID of the sheet to insert into. - dimension (string, required): "ROWS" or "COLUMNS". - start_index (integer, required): The 0-based start index of the insertion (inclusive). - end_index (integer, required): The 0-based end index of the insertion (exclusive). - inherit_from_before (boolean, optional): Whether dimension properties should be extended from the dimensions before (true) or after (false).

The following code sample shows how to use curl to call the insert_dimension MCP tool.

Curl Request 
curl --location 'https://sheetsmcp.googleapis.com/mcp' \
--header 'Authorization: Bearer YOUR_ACCESS_TOKEN' \
--header 'content-type: application/json' \
--header 'accept: application/json, text/event-stream' \
--data '{
  "method": "tools/call",
  "params": {
    "name": "insert_dimension",
    "arguments": {
      // Provide these details according to the MCP tool specification.
    }
  },
  "jsonrpc": "2.0",
  "id": 1
}'

Input Schema

InsertDimensionRequest

JSON representation 
{
  "spreadsheetId": string,
  "sheetId": integer,
  "dimension": enum (Dimension),
  "startIndex": integer,
  "endIndex": integer,
  "inheritFromBefore": boolean
}
Fields
spreadsheetId

string

Required. The ID of the spreadsheet to update.
sheetId

integer

Required. The ID of the sheet to insert into.
dimension

enum (Dimension)

Required. The dimension to insert.
startIndex

integer

Required. The 0-based start index of the insertion (inclusive).
endIndex

integer

Required. The 0-based end index of the insertion (exclusive).
inheritFromBefore

boolean

Whether dimension properties should be extended from the dimensions before or after the newly inserted dimensions. True to inherit from the dimensions before (in which case the start index must be greater than 0), and false to inherit from the dimensions after.

Dimension

Indicates which dimension an operation should apply to.

Enums
DIMENSION_UNSPECIFIED The default value, do not use.
COLUMNS Operates on the columns of a sheet.
ROWS Operates on the rows of a sheet.

Output Schema

Represents a JSON object.

An unordered key-value map, intending to perfectly capture the semantics of a JSON object. This enables parsing any arbitrary JSON payload as a message field in ProtoJSON format.

This follows RFC 8259 guidelines for interoperable JSON: notably this type cannot represent large Int64 values or NaN/Infinity numbers, since the JSON format generally does not support those values in its number type.

If you do not intend to parse arbitrary JSON into your message, a custom typed message should be preferred instead of using this type.

Struct

JSON representation 
{
  "fields": {
    string: value,
    ...
  }
}
Fields
fields

map (key: string, value: value (Value format))

Unordered map of dynamically typed values.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.

FieldsEntry

JSON representation 
{
  "key": string,
  "value": value
}
Fields
key

string
value

value (Value format)

Value

JSON representation 
{

  "nullValue": null,
  "numberValue": number,
  "stringValue": string,
  "boolValue": boolean,
  "structValue": {
    object
  },
  "listValue": array
}
Fields
Union field kind. The kind of value. kind can be only one of the following:
nullValue

null

Represents a JSON null.
numberValue

number

Represents a JSON number. Must not be NaN, Infinity or -Infinity, since those are not supported in JSON. This also cannot represent large Int64 values, since JSON format generally does not support them in its number type.
stringValue

string

Represents a JSON string.
boolValue

boolean

Represents a JSON boolean (true or false literal in JSON).
structValue

object (Struct format)

Represents a JSON object.
listValue

array (ListValue format)

Represents a JSON array.

ListValue

JSON representation 
{
  "values": [
    value
  ]
}
Fields
values[]

value (Value format)

Repeated field of dynamically typed values.

NullValue

Represents a JSON null.

NullValue is a sentinel, using an enum with only one value to represent the null value for the Value type union.

A field of type NullValue with any value other than 0 is considered invalid. Most ProtoJSON serializers will emit a Value with a null_value set as a JSON null regardless of the integer value, and so will round trip to a 0 value.

Enums
NULL_VALUE Null value.

Tool Annotations

Tool annotations are sent to MCP clients to describe the basic risk of a given tool. Most clients treat these hints as untrusted, but they can be used to decide when a confirmation prompt might be sent to a user.

Along with the title string, the following boolean hints are defined as follows:

  • readOnlyHint: If true, the tool doesn't modify its environment. Default: false.
  • destructiveHint: If true, then the tool can perform destructive actions. If false, then the tool can only perform additive actions. Default: true.
  • idempotentHint: If true, then calling the tool repeatedly with the same arguments will have no additional effect on its environment. Default: false.
  • openWorldHint: If true, then the tool can interact with an 'open world' of external entities. If false, then the tool can only interact with internal entities. For example, a web search tool would be open world, while a memory tool would not be open world.

Destructive Hint: ❌ | Idempotent Hint: ❌ | Read Only Hint: ❌ | Open World Hint: ✅

Authorization Scopes

Requires one of the following OAuth scopes:

  • https://www.googleapis.com/auth/drive
  • https://www.googleapis.com/auth/spreadsheets