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Cognitive Services let you build intelligent apps with powerful algorithms using just a few lines of code. Try the Cognitive Services APIs for free in minutes.


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Bing Entity Search

Search real world entities like people, places, things and local businesses in Bing's Knowledge Graph.

1,000 transactions per month, up to 7 per second. Trial keys expire after a 7-day period.

Computer Vision

Analyze content in images.

5,000 transactions, 20 per minute.


Detect and identify people and emotions in images.

30,000 transactions, 20 per minute.

Ink Recognizer PREVIEW

Recognize digital ink in your content

2,000 transactions free per month

Speech services


Speech to Text
Text to Speech
Speech Translation

Unified Speech Services for free trials on 5,000 transactions per month, 20 per minute. Trial keys will expire after a 30 day period, after which you can create a Cognitive Services account on Azure portal. As part of the bundle, this trial only includes the following: Speech-to-Text, Text-to-Speech, Speech Translation.

Speaker Recognition PREVIEW

Identify and verify the people speaking based on audio.

20,000 transactions per month, 20 per minute.

Text Analytics

Detect sentiment, key phrases, and named entities.

5,000 transactions per month.

Anomaly Detector PREVIEW

Embed anomaly detection capabilities

20,000 transactions free per month


Create personalized user experiences

50,000 transactions free per month