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Custom Vision REST API reference - Azure Cognitive Services

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This article demonstrates how to call a REST API endpoint for Custom Vision service in Azure Cognitive Services suite.. Custom Vision lets you build, deploy, and improve your own image classifiers. An image classifier is an AI service that applies labels (which represent classes) to images, based on their visual characteristics.

Call the Custom Vision endpoint

  1. Start by creating an Azure Cognitive Services resource, and within that specifically a Custom Vision resource. For instructions, see Create a Cognitive Services resource using the portal.

  2. From the Azure Portal, copy the key and endpoint required to make the call. For instructions, see Get the keys for your resource.

  3. From the left navigation on this article, expand the node for the version of the API you want to work on, and then select the operation that you want to perform (e.g., Classify Image). On the right pane, select Try It.

  4. In the REST API Try It pane, perform the following steps:

    1. In the Endpoint text box, enter the resource endpoint that you copied from the Azure portal.
    2. In the Ocp-Apim-Subscription-Key text box, enter the key that you copied from the Azure portal. If the call requires any more headers, add those with the appropriate values as well.
    3. Provide other parameters, headers, and message payload (body) as required for the operation.
    4. Select Run.

  5. You will see the relevant response with an appropriate response code.

Samples

Visit the Cognitive Services REST API Sample Github repo for various samples on working with Cognitive Services using REST.

See also