Alerts

Get notified when your AI usage crosses defined thresholds.

Alerts send you an email notification when a metric — cost, error rate, latency, or request volume — crosses a threshold you define. You configure each rule once, and Metrion checks it automatically after every proxied request.

Notification levels

Each alert rule triggers at two levels:

• Warning — sent when your current value reaches 90% of the threshold. This is an early signal to act before the limit is hit.
• Alert — sent when your current value reaches or exceeds 100% of the threshold.

Notifications go to the email address associated with your Metrion account.

Metrion enforces a 24-hour cooldown per rule. If a warning or alert email has already been sent for a rule, the same level will not send again until 24 hours have passed. This prevents repeated notifications during a sustained overrun.

Create an alert rule

1. Go to Alerts

   Navigate to metrion.dev/alerts in your dashboard.

2. Click 'New Alert'

   Click the New Alert button in the top-right corner of the rules panel.

3. Choose a type

   Select one of the four alert types: Budget, Error Rate, Latency p95, or Request Volume. See Alert Types for details on each.

4. Configure the rule

   Fill in the rule fields:

   • Name (optional) — a label to identify the rule, such as “Prod API” or “Marketing bot”.
   • Threshold — the value at which the alert fires, along with its unit (e.g. 50 in USD, or 5 in %).
   • Providers — scope the rule to all providers or to specific ones (Anthropic, OpenAI, Gemini, Mistral, Grok).
   • Period — the date range over which usage is measured. Budget alerts let you choose between the start of the current month, the moment the rule was created, or a custom date.
5. Save the rule

   Click Create alert. The rule becomes active immediately.

Test an alert rule

Click Test on any rule to send a real email to your account address immediately, regardless of current usage. Use this to confirm your email is receiving notifications before relying on the rule in production.

A test cooldown of 12 hours applies per rule after a test email is sent.

Delete an alert rule

Click Delete next to a rule to remove it permanently. Deletion is immediate and cannot be undone.

Plan limits

The Free plan is limited to 1 alert rule. Upgrade to Pro for unlimited rules.

Plan	Alert rules
Free	1
Pro	Unlimited

On the Free plan, you can see the alerts section but it is locked behind an upgrade prompt. To create more than one rule, upgrade to Pro.