Attio Webhooks & Events Overview Attio v2 webhooks deliver real-time CRM event notifications to your HTTPS endpoint. Subscribe to record, list-entry, note, and task events with optional object or attribute filters to reduce volume. Webhooks are managed via and verified with HMAC-SHA256 signatures using a timestamp-prefixed payload. Webhook Registration Signature Verification Event Handler Event Types | Event | Payload Fields | Use Case | |-------|---------------|----------| | | , , | Sync new contacts/deals to external CRM | | | , , | Re-index changed records | | | , , | Forward meeting notes…