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POST
/
live-activity
/
update
curl --request POST \
  --url https://activitysmith.com/api/live-activity/update \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "activity_id": "pLAr-Hnq9ZFW4sxlk43Lhbuok4GLh7UW",
  "content_state": {
    "title": "Nightly database backup",
    "subtitle": "upload archive",
    "number_of_steps": 4,
    "current_step": 2
  }
}
'
{
  "success": true,
  "activity_id": "pLAr-Hnq9ZFW4sxlk43Lhbuok4GLh7UW",
  "devices_notified": 2,
  "devices_queued": 0,
  "timestamp": "2026-01-28T09:57:26.056Z"
}
Use this endpoint to update an existing Live Activity by activity_id.
  • metrics: send the latest metrics array.
  • segmented_progress: send the latest current_step and, if needed, an updated number_of_steps.
  • progress: send the latest percentage, or value with upper_limit.
  • action is optional if you want to set or replace the Live Activity button.
  • type is optional on update if the existing Live Activity already has a type.
For segmented_progress, you can update both current_step and number_of_steps. Use this when the workflow gains or loses steps after the activity has already started.

Authorizations

​
Authorization
string
header
required

Required. Include Authorization: Bearer ask_123456789 in every request. Replace ask_123456789 with your API key.

Body

application/json

Update an existing Live Activity by activity_id.

​
activity_id
string
required
​
content_state
object
required

Update payload requires title. For segmented_progress include current_step and optionally number_of_steps. For progress include percentage or value with upper_limit. For metrics include a non-empty metrics array. Legacy counter/timer/countdown types also use current_step and number_of_steps. Type is optional when updating an existing activity. You can increase or decrease number_of_steps during updates.

​
action
object

Optional single action button shown in the Live Activity UI.

Response

Live Activity updated (or queued)

Returned after a Live Activity update is sent or queued.

​
success
boolean
required
​
activity_id
string
required
​
timestamp
string<date-time>
required
​
devices_queued
integer
​
devices_notified
integer