Amazon EventBridge Pricing

With Amazon EventBridge, you pay only for events published to your event bus and events ingested for event replay. There are no additional charges for rules or event delivery. There are no minimum fees or upfront commitments. All state change events published by Amazon Web Services services by default are free.

Event buses

Amazon Web Services default service events  Free
Custom events  ¥ 6.75/million custom events published
¥ 6.75/million custom events from opt-in Amazon Web Services services (for example, Amazon Simple Storage Service (S3) event notifications)
Third-party (SaaS) events ¥ 6.75/million events published
Cross-account events ¥ 6.75/million cross-account events sent

Size of payloads: Each 64 KB chunk of a payload is billed as one event (for example, an event with a 256 KB payload is billed as 4 requests).

Pricing example

If a customer's application published 5 million events in one month, your charges would be calculated as follows:

Monthly events = 5M events (all equal to our less than 64 KB each)
Monthly events charges = 5M * ¥ 6.75/M = ¥33.75 per month

Event replay

Archive processing ¥ 2.47 per GB
Storage / Month ¥ 0.195 per GB / Month

For replay, you are billed as per the custom events pricing above.

Pricing example

If your application published 2 million events in a month, each averaging 6 KB, and you enabled archiving on your development event bus for replay and you replay all of them, your charges would be calculated as follows:

Monthly events = 2M events * ¥ 6.75/M = ¥ 13.50 per month.
Archive Processing = 2M events * 6KB / (1024 * 1024) * ¥ 2.47/GB = ¥ 28.27
Storage Costs = 2M events * 6KB / (1024*1024) * ¥ 0.195/GB = ¥ 2.23 per month
Replayed Events = 2M * ¥ 6.75/M = ¥ 13.50 per month

Total monthly EventBridge charges = ¥ 13.50 (event publishing) + ¥ 28.27 (Archive Processing) + ¥ 2.23 (Storage) + ¥ 13.50 (Replaying) = ¥ 57.50 per month.

Have questions?

Visit the Amazon EventBridge FAQs page.

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Start building in the console

Get started building with Amazon EventBridge in the Amazon Web Services Management Console.

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Learn more in documentation

Get a deeper understanding of EventBridge in the Developer Guide.

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