Fixie Webhooks

generated: '2026-07-19'
method: searched
source: https://docs.ultravox.ai/webhooks/available-webhooks
type: Webhooks
transport: https-webhook
docs:
  overview: https://docs.ultravox.ai/webhooks/overview
  available: https://docs.ultravox.ai/webhooks/available-webhooks
  securing: https://docs.ultravox.ai/webhooks/securing-webhooks
  errors_and_retries: https://docs.ultravox.ai/webhooks/errors-and-retries
configuration:
  managed_via_api: true
  operations: [webhooks_create, webhooks_list, webhooks_retrieve, webhooks_update, webhooks_partial_update, webhooks_destroy]
  secrets: Per-webhook secrets configured on the webhook resource for signature verification.
  retries: Automatic retry with exponential backoff on failed delivery.
envelope:
  fields:
  - event
  - call
  note: 'Payload carries the event type and the full Call object, e.g. {"event":"call.started","call":{...}}'
events:
- type: call.started
  description: Fires when a call is created.
- type: call.joined
  description: Fires when a client connects to the call.
- type: call.ended
  description: Fires when a call ends.
- type: call.billed
  description: Fires when a call is billed.