Stop polling
React when an opted-in capture completes or reaches terminal failure.
Signed capture webhooks
Configure one account endpoint, keep its signing secret, and opt asynchronous captures into completion and failure events.
What you get
Verify every event
Check the timestamped request signature with the secret shown when the endpoint is saved.
Retry safely
Use the stable event ID to deduplicate at-least-once delivery attempts.
Steps
01
Save an endpoint
Configure a public HTTPS endpoint and retain the one-time signing secret.
02
Opt in
Set webhook to true on an asynchronous capture.
03
Verify and deduplicate
Check the signature and process each event ID once.
Signed webhooksCapturewell
PUT /v1/webhook-endpoint
POST /v1/screenshots/async {"webhook": true}
capture.completed · capture.failedTry signed webhooks
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