Parallel Webhooks

generated: '2026-07-20'
method: searched
source: https://docs.parallel.ai/resources/webhook-setup + product webhook docs
spec_type: Webhooks
notes: >-
  Parallel documents webhooks but does not publish an AsyncAPI document. Webhooks
  follow the Standard Webhooks specification (HMAC-SHA256). This artifact captures
  the webhook/event surface across products.
signature:
  standard: Standard Webhooks
  algorithm: HMAC-SHA256
  signed_content: "<webhook-id>.<webhook-timestamp>.<payload>"
  headers: [webhook-id, webhook-timestamp, webhook-signature]
  secret_prefix: whsec_
  verification: timing-safe comparison; multiple space-delimited signatures supported for secret rotation
producers:
- product: Task API
  emits: Task run completion events.
  docs: https://docs.parallel.ai/task-api/webhooks
- product: FindAll
  emits: Candidate and run events.
  docs: https://docs.parallel.ai/findall-api/features/findall-webhook
- product: Monitor API
  emits: Monitor execution and detected-change events.
  docs: https://docs.parallel.ai/monitor-api/monitor-webhooks
streaming_alternative:
  transport: server-sent-events
  docs: https://docs.parallel.ai/task-api/task-sse