Cancel appointment
Cancel an appointment, optionally marking a no-show.
MCP tool acuity_scheduling_write → cancel_appointment
write Confirm
Cancels one appointment. A cancellation cannot be undone, but the appointment stays viewable. Pass a note to include it in the cancellation message, and mark_no_show to record that the client did not come. Acuity emails and texts the client unless send_notification is false. By default you confirm each call; you can switch that off for this tool.
Parameters
| Name | Type | Description |
|---|---|---|
| appointment_id integer required | integer | Appointment ID from list_appointments. |
| cancel_note string | string | Text included in the cancellation message to the client. |
| mark_no_show boolean | boolean | true records a no-show. Default: false. |
| send_notification boolean | boolean | false sends no email or text. Default: true. |
tools/call
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "acuity_scheduling_write",
"arguments": {
"operation": "cancel_appointment",
"arguments": {
"appointment_id": 1
}
}
}
}Example response
{
"content": [
{
"type": "text",
"text": "{ ... same JSON as structuredContent ... }"
}
],
"structuredContent": {
"appointment_id": 1840299,
"first_name": "Marc",
"last_name": "Dubois",
"type": "Annual review",
"datetime": "2026-11-05T14:00:00-0500",
"canceled": true,
"no_show": false,
"notified_client": true
},
"isError": false
}