> Event-driven integrations via webhooks. # Webhooks Webhooks let you react to Modelux events in your own infrastructure: budget alerts, config changes, provider health transitions, request anomalies. ## Event types - `budget.threshold_reached` - `budget.exceeded` - `routing_config.updated` - `routing_config.created` - `routing_config.deleted` - `provider.health_changed` - `api_key.revoked` - `request.anomaly_detected` ## Endpoint setup 1. Open **Integrations -> Webhooks** in the dashboard. 2. Click **Add endpoint**. Enter the destination URL. 3. Select which event types to subscribe to. 4. Modelux generates a signing secret. Save it to verify incoming payloads. ## Signature verification Every delivery includes an `X-Modelux-Signature` header with an HMAC-SHA256 of the raw body using your signing secret. ```javascript import crypto from "crypto"; function verify(body, signature, secret) { const expected = crypto .createHmac("sha256", secret) .update(body) .digest("hex"); return crypto.timingSafeEqual( Buffer.from(signature), Buffer.from(expected), ); } ``` ## Delivery & retries - Deliveries run asynchronously through a durable queue - On non-2xx response or timeout: retried with exponential backoff up to 24h - The dashboard shows per-delivery status, payload, response body, and a replay button for manual redelivery ## Slack-compatible format Set the endpoint URL to a Slack webhook URL. Modelux detects it and formats the payload as a Slack message automatically.