generated: '2026-07-19'
method: searched
source: https://github.com/Forecast-it/API/blob/master/sections/webhook_subscriptions.md
type: Webhooks
api: Forecast API
summary: >-
  Forecast exposes an outbound webhook system. Consumers register subscriptions
  (via the webhook_subscriptions REST resource) for task, time-registration,
  project, and phase events; Forecast POSTs a signed event payload to the
  subscriber URL and retries up to 5 times with increasing backoff on non-2xx.
management:
  resource: webhook_subscriptions
  endpoints:
  - GET /v1/webhook_subscriptions
  - GET /v1/webhook_subscriptions/{id}
  - POST /v1/webhook_subscriptions
  - PUT /v1/webhook_subscriptions/{id}
  - DELETE /v1/webhook_subscriptions/{id}
  subscription_fields:
    id: Integer
    name: String
    type: String (TASK, TIME_REG, PROJECT, PHASE)
    event: String (CREATE, UPDATE, DELETE)
    url: String delivery endpoint
    active: Boolean
delivery:
  transport: HTTPS POST to subscriber URL
  payload_fields:
    timestamp: UTC timestamp of the event
    event: object-type + event-type string (e.g. task_updated)
    object.id: id of the affected object
    person.id: id of the person who triggered the event
    fields_changed: array of field names (UPDATE events only)
  example: |
    {
      "timestamp": "2021-09-23T07:30:00Z",
      "event": "task_updated",
      "object": { "id": 655383 },
      "person": { "id": 50363 },
      "fields_changed": ["description"]
    }
  retries:
    condition: response status code other than 2xx
    max_attempts: 5
    schedule_minutes: [1, 2, 3, 5, 10]
event_catalog:
  object_types:
  - TASK
  - TIME_REG
  - PROJECT
  - PHASE
  event_types:
  - CREATE
  - UPDATE
  - DELETE
asyncapi_spec:
  available: false
  note: >-
    No machine-readable AsyncAPI document is published; this is a derived
    catalog of the documented webhook surface.