Metrics, events and webhooks

Each sandbox's measured CPU and memory over time, with sbx.metrics(), runtime sandbox metrics, MCP, and live charts on the sandbox's own page in your account, where owners can also stop it. Lifecycle events (created, running, paused, woken, stopped, start failed) for sandboxes, snapshots and volumes, with GET /v1/events. Webhooks send them to your URL, signed like Stripe's, retried for about three days, with a delivery log and a test send; verifyWebhook in both SDKs checks them. OpenTelemetry export pushes events as logs and CPU and memory as metrics to any OTLP/HTTP endpoint. See metrics and webhooks.