Cognitive Services pricing—Anomaly Detector

Your business is only as reliable as its ability to detect problems

Easily embed anomaly detection capabilities into your apps so users can quickly identify problems as soon as they occur. No machine-learning background required. Through an API, Anomaly Detector ingests time-series data of all types and selects the best-fitting anomaly detection model for your data to ensure high accuracy. Customise the service to your business’s risk profile. Deploy it where you need it most – only with Azure can you run Anomaly Detector anywhere from the cloud to the intelligent edge.

Pricing details

The Free instance is free of charge with limited monthly quota up to 20K transactions and intended to be used only for development and testing purposes.

The Standard instance is designed for running production workloads. Pricing is based the number of transactions you make.

Current pricing is at a preview rate. General availability pricing will go into effect on 01 November 2020.

Instance Price
Free - Web/Container 20000 transactions free per month
Standard - Web/Container $- per 1,000 transactions

Support & SLA

  • Free billing and subscription management support are included.
  • We guarantee that Cognitive Services running in the standard tier will be available at least 99.9 percent of the time. No SLA is provided for the free trial. Read the SLA.


  • A transaction is an API call with request payload size up to 1000 data points inclusive in the time series, each increment of 1K data points will add to another one transaction. For example, an API call with request payload size == 2050 is 3 transactions. The maximum request payload size is 8640 data points. Each data point in time series is a time stamp/numerical value pair.

  • Usage is throttled if the transaction limit is reached on the Free tier. Customers cannot accrue overages on the free tier.


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Run anomaly detection over 1.2 M data points