---
title: "POST /#X-Amz-Target=AmazonForecast.CreateMonitor"
method: POST
path: "/#X-Amz-Target=AmazonForecast.CreateMonitor"
---

# POST /#X-Amz-Target=AmazonForecast.CreateMonitor

`POST /#X-Amz-Target=AmazonForecast.CreateMonitor`

Creates a predictor monitor resource for an existing auto predictor. Predictor monitoring allows you to see how your predictor's performance changes over time. For more information, see <a href="https://docs.aws.amazon.com/forecast/latest/dg/predictor-monitoring.html">Predictor Monitoring</a>.

## Headers

- `X-Amz-Target` 'AmazonForecast.CreateMonitor', required

## Request body

- CreateMonitorRequest
  - `MonitorName` string, required — The name of the monitor resource.
  - `ResourceArn` string, required — The Amazon Resource Name (ARN) of the predictor to monitor.
  - `Tags` Tag[] — A list of <a href="https://docs.aws.amazon.com/forecast/latest/dg/tagging-forecast-resources.html">tags</a> to apply to the monitor resource.
    - `Key` string, password, required — One part of a key-value pair that makes up a tag. A <code>key</code> is a general label that acts like a category for more specific tag values.
    - `Value` string, password, required — The optional part of a key-value pair that makes up a tag. A <code>value</code> acts as a descriptor within a tag category (key).

## Response `200`

Success

- CreateMonitorResponse
  - `MonitorArn` string — The Amazon Resource Name (ARN) of the monitor resource.

## Other responses

- `480` — InvalidInputException
- `481` — ResourceAlreadyExistsException
- `482` — ResourceNotFoundException
- `483` — ResourceInUseException
- `484` — LimitExceededException

---

[API](https://skmtc.net/aws/apis/forecast.md) · [All operations](https://skmtc.net/aws/apis/forecast/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/aws/forecast/versions/3d1c872d2ac9/schema)