---
title: "POST /DescribeAnomalyDetector"
method: POST
path: "/DescribeAnomalyDetector"
---

# POST /DescribeAnomalyDetector

`POST /DescribeAnomalyDetector`

Describes a detector.

Amazon Lookout for Metrics API actions are eventually consistent. If you do a read operation on a resource immediately after creating or modifying it, use retries to allow time for the write operation to complete.

## Request body

- object
  - `AnomalyDetectorArn` string, required — The ARN of the detector to describe.

## Response `200`

Success

- DescribeAnomalyDetectorResponse
  - `AnomalyDetectorArn` string — The ARN of the detector.
  - `AnomalyDetectorName` string — The name of the detector.
  - `AnomalyDetectorDescription` string — A description of the detector.
  - `AnomalyDetectorConfig` object — Contains information about the detector's configuration.
    - `AnomalyDetectorFrequency` 'P1D' | 'PT1H' | 'PT10M' | 'PT5M' — The interval at which the detector analyzes its source data.
  - `CreationTime` string, date-time — The time at which the detector was created.
  - `LastModificationTime` string, date-time — The time at which the detector was last modified.
  - `Status` 'ACTIVE' | 'ACTIVATING' | 'DELETING' | 'FAILED' | 'INACTIVE' | 'LEARNING' | 'BACK_TEST_ACTIVATING' | 'BACK_TEST_ACTIVE' | 'BACK_TEST_COMPLETE' | 'DEACTIVATED' | 'DEACTIVATING' — The status of the detector.
  - `FailureReason` string — The reason that the detector failed.
  - `KmsKeyArn` string — The ARN of the KMS key to use to encrypt your data.
  - `FailureType` 'ACTIVATION_FAILURE' | 'BACK_TEST_ACTIVATION_FAILURE' | 'DELETION_FAILURE' | 'DEACTIVATION_FAILURE' — The process that caused the detector to fail.

## Other responses

- `480` — ResourceNotFoundException
- `481` — ValidationException
- `482` — AccessDeniedException
- `483` — InternalServerException
- `484` — TooManyRequestsException

---

[API](https://skmtc.net/aws/apis/lookoutmetrics.md) · [All operations](https://skmtc.net/aws/apis/lookoutmetrics/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/aws/lookoutmetrics/versions/aace1e573660/schema)