Reliable event delivery at massive scale
Event Grid is a fully managed event routing service that provides reliable message delivery at massive scale. Developers use Event Grid to build reactive, event-driven apps in a modern, serverless compute architecture—eliminating polling and its associated cost and latency. One-to-many mapping, in which a single event can trigger multiple actions, provides a uniform event consumption experience. A pay-per-operation model complements and extends your serverless solutions and lets you focus on innovation rather than infrastructure.
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Prices are estimates only and are not intended as actual price quotes. Actual pricing may vary depending on the type of agreement entered with Microsoft, date of purchase and the currency exchange rate. Prices are calculated based on US dollars and converted using Thomson Reuters benchmark rates refreshed on the first day of each calendar month. Sign in to the Azure pricing calculator to see pricing based on your current programme/offer with Microsoft. Contact an Azure sales specialist for more information on pricing or to request a price quote. For more information on Azure pricing see frequently asked questions.
US government entities are eligible to purchase Azure Government services from a licensing solution provider with no upfront financial commitment, or directly through a pay-as-you-go online subscription.
Important—The price in R$ is merely a reference; this is an international transaction and the final price is subject to exchange rates and the inclusion of IOF taxes. An eNF will not be issued.
US government entities are eligible to purchase Azure Government services from a licensing solution provider with no upfront financial commitment, or directly through a pay-as-you-go online subscription.
Important—The price in R$ is merely a reference; this is an international transaction and the final price is subject to exchange rates and the inclusion of IOF taxes. An eNF will not be issued.
Event Grid Basic tier
Event Grid Basic tier is priced as pay-per-use based on operations performed. Operations include ingress of events to Domains or Topics, advanced matches, delivery attempts, and management calls. Plan pricing includes a monthly free grant of 100,000 operations.
| Price per million operations | $- |
| Free usage per month | 100,000 operations |
Event Grid on Kubernetes with Azure Arc
Now in Preview, Event Grid can run on Kubernetes via Azure Arc-enabled clusters on premises and in other clouds. This capability is currently free* during Preview.
*Customers will still pay for the underlying Kubernetes infrastructure when using Azure Kubernetes Service (AKS) and are responsible for managing and scaling their own node pools. Learn more about the capabilities of Event Grid on Kubernetes with Azure Arc.
Event Grid pricing example 1
An Azure Function is connected to Blob Storage through Event Grid, to process images each time a new image is added. In the blob storage container 5 million images are created—each one triggering the Function through Event Grid.
- You publish 5 million events to Event Grid in a month.
- All events are published to 1 https endpoint.
| Number of operations | |
|---|---|
| Published events1 | 5 million operations |
| Delivery attempts | 5 million operations |
| Monthly free grant | - 100,000 operations |
| Total operations Price per million operations |
9.9 million x $- |
| Total monthly cost | $- |
Event Grid pricing example 2
Incoming logs to Event Hubs are being sent to storage through Event Hubs Capture. Five million log batch events are pushed by Event Grid to Logic Apps for monitoring. All events are also pushed to one of several customised-monitoring endpoints based on the event type, and in some cases the origin of the event. One million of these events require advanced matching. One of the endpoints experiences outages and retries are necessary to successfully deliver the events.
- You publish 5 million events to Event Grid in a month.
- All events are published to 2 https endpoints.
- 1 million of the events require advanced matching.
- 1 million of the events required 2 delivery attempts.
| Number of operations | |
|---|---|
| Published events1 | 5 million operations |
| Delivery attempts | 11 million operations (1 million for second delivery attempt) |
| Advanced match | 1 million operations |
| Monthly free grant | - 100,000 operations |
| Total operations Price per million operations |
16.9 million x $- |
| Total monthly cost | $- |
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Event Grid
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Review the Service Level Agreement for Event Grid.
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Frequently asked questions
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Operations in Event Grid include all ingress events, advanced match, delivery attempt, and management calls. You’re charged per million operations with the first 100,000 operations free each month.
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By default, you can have up to 500 Event Subscriptions per topic as per the Event Grid limits documentation.
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The default limit for customised topics is 100 per Azure Subscription
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You can have up to 1,000 Event Grid subscriptions during the preview period.
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Currently, we support https endpoints. Other endpoints will be supported later.
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Event Grid will perform an exponential back off for all deliveries. If your WebHook does not return a 2xx, the retry begins immediately. When the back off interval reaches one hour, retries will be performed every hour. After 24 hours, the service will stop attempting to deliver events.
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Event Grid will buffer data for a maximum of 24 hours. At the end of this time, events will be deleted.
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Each 64KB chunk of delivered data is billed as 1 request. For example, a single event of 256KB will be billed as 4 events.
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No, Domains and Topics are treated the same way from a billing perspective. Ingress of an event to Azure Event Grid system is one operation regardless of entry point.
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