message.altText

MCP tool from Line Bot MCP Server by line

(string): Alternative text shown when flex message cannot be displayed.

How to use it

message.altText is exposed by the Line Bot MCP Server MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the message.altText tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

FULL LINE BOT MCP SERVER LISTING

Other tools in Line Bot MCP Server (18)

actions

(array): The actions of the rich menu. You can specify minimum 1 to maximum 6 actions. Each action can be one of the following types:

camera

For opening the camera

cameraRoll

For opening the camera roll

chatBarText

(string): Text displayed in chat bar, also used as rich menu name.

clipboard

For copying text to clipboard

datetimepicker

For opening a date/time picker

limit

(number?): The maximum number of user IDs to retrieve in a single request.

location

For sending the current location

message

For sending a text message

message.contents

(any): The contents of the flex message. This is a JSON object that defines the layout and components of the message.

message.contents.type

(enum): Type of the container. 'bubble' for single container, 'carousel' for multiple swipeable bubbles.

message.text

(string): The plain text content to send to the user.

postback

For sending a postback action

richMenuId

(string): The ID of the rich menu to delete.

richmenuswitch

For switching to another rich menu

start

(string?): Continuation token to get the next array of user IDs. Returned in the next property of a previous response.

uri

For opening a URL

userId

(string?): The user ID to receive a message. Defaults to DESTINATIONUSERID. Either userId or DESTINATIONUSERID must be set.