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title: Viewing Key Metrics in API Manager for Managed Flex Gateway
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locale: en-us
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product: Omni Gateway
version: 1.9
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# Viewing Key Metrics in API Manager for Managed Flex Gateway

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

API Manager and Anypoint Monitoring collect metrics on active Flex Gateway API instances. You can
view charts related to these metrics and filter the data by date.

The metrics available in API Manager are considered **Key Metrics** and are described here. **Key
Metrics** are available with all Anypoint Platform subscriptions. For additional Omni Gateway API
metrics not included in the **Key Metrics** section, use
[Anypoint Monitoring](#monitoring::api-analytics-dashboard.adoc) (Anypoint Integration Advanced
package or Titanium subscriptions only). You can navigate to Anypoint Monitoring by clicking
**Anypoint Monitoring** from Anypoint Platform.

> [!NOTE] The **Mule API Analytics** tab in API Manager is currently not available for Flex Gateway
> APIs. Use the **Key Metrics** or the additional metrics in Anypoint Monitoring.

## Key Metrics

1.  Log in to Anypoint Platform.

2.  In the navigation bar or the Anypoint Platform page, click **API Manager**.  
    The **API Administration** page appears, showing a list of APIs that are available in your
    organization.

3.  Click the API instance.  
    The **API Summary** page appears, showing general information and the status of the API
    instance.

    To see an API instance in Anypoint Monitoring, from the **Key Metrics** section click **View
    more metrics in Anypoint Monitoring dashboard** or navigate to Anypoint Monitoring directly.

The **Key Metrics** section shows four charts. If charts do not appear for your API instance,
refresh your browser.

## Understanding Key Metrics

The **Key Metrics** section of the API summary contains the following charts:

Total Requests

Sum of requests in the selected time period for the given API.

Data is aggregated in one minute increments.

Total Policy Violations

Sum of requests that return policy violations.

Data is aggregated in one minute increments.

Total Errors

Sum of HTTP response codes that occur in the selected time period. The response codes counted in
this metric are 400, 401, 402, 403, 404, 405, 408, 409, 410, 411, 412, 413, 415, 416, 417, 420, 422,
429, 500, 502, 503, 504, 504, 510, and 511.

Data is aggregated in one minute increments. In the chart, HTTP response codes are abbreviated as
4xx and 5xx.

Average Response Time

Average response time of requests in the selected time period for the given API.

Data is aggregated in one minute increments.

## Setting the Time Period for Key Metrics

You can view the data points collected for the last given period of time (such as the last 5 or 30
minutes) or over a given date and time range. Use the drop-down in the calendar icon to select the
time period to display.

## See Also

- [Viewing Managed Flex Gateway Metrics](https://docs.mulesoft.com/gateway/1.9/flex-managed-view-status)

- [monitoring::api-analytics-dashboard.adoc](#monitoring::api-analytics-dashboard.adoc)