Eventarc pricing
Eventarc is offered in two editions: Eventarc Advanced and Eventarc Standard.
For more information, see the Eventarc overview.
Eventarc Advanced pricing
| Eventarc Advanced billable component | Pricing |
|---|---|
| Bus publishing | Messages published to a bus from any source: US$1.00 per million messages. |
| Pipeline messages | Messages sent to a pipeline: US$0.50 per million messages. |
| Pipeline transformations | Stateless transformations and conversions: US$0.40 per million operations. |
Note the following:
- If you pay in a currency other than USD, the prices listed in your currency on Cloud Platform SKUs apply.
- Event receiver services incur any applicable charges; for example, Cloud Run.
- Standard Cloud Monitoring and Cloud Logging charges apply.
- Events larger than 16 KB are considered multiple events. Each
16 KB portion of a payload is billed as 1 event. For example:
- 16.001 KB event—2 events billed
- 65 KB event—5 events billed
- 1 MB event (maximum event size)—64 events billed
Billing example
| Usage of Eventarc Advanced bus | For 2.5M events published to a bus, and when charged US$1.00 per million events, the charge is US$2.50. |
| Usage of Eventarc Advanced pipeline | Assuming 100% of the messages are sent to the pipeline, and when charged US$0.50 per million events, the charge is US$1.25. |
| Usage of transformation and conversion | Assuming 100% of the messages apply either a conversion or a transformation, and 2.5M operations, and when charged US$0.40 per million operations, the charge is US$1.00. |
| Total charge | US$4.75 |
Eventarc Standard pricing
The total Eventarc Standard billable charge is the combined charge of Eventarc and its transport layer, Pub/Sub.
| Eventarc Standard billable component | Pricing |
|---|---|
| The first 50,000 chargeable events in every calendar month | Free |
| Events from Google sources | US$0 per million events published |
| Events from Pub/Sub sources | US$0 per million events published |
| Events from other sources | US$1 per million events published (free while in Preview) |
Note the following:
- If you pay in a currency other than USD, the prices listed in your currency on Cloud Platform SKUs apply.
- Usage of the Pub/Sub transport layer is billed at standard Pub/Sub rates.
- For Pub/Sub sources, Eventarc can use the existing Pub/Sub topic used by the event provider when publishing events.
- Events using Cloud Audit Logs incur Cloud Logging charges and event receiver services incur any applicable charges; for example, Cloud Run.
- Events larger than 64 KB are considered multiple events. Each
64 KB portion of a payload is billed as 1 event. For example:
- 64.001 KB event—2 events billed
- 257 KB event—5 events billed
- 512 KB event (maximum event size)—8 events billed
Billing examples
These examples assume events using Cloud Audit Logs are typically 2 KB.
Google event source example
Scenario: A Cloud Run service receiving one 2 KB event every minute for a month (43,200 events) at a rate of 2 KBps from a Google source such as Cloud Storage using Cloud Audit Logs.
| Usage of Eventarc | US$0 per million events published for 43,200 events. The charge is US$0. |
| Usage of the Pub/Sub transport layer | Assuming one Pub/Sub topic with one subscription and the subscriber is consuming all generated events. Pub/Sub has a total transmission rate of 4 KBps (2 KBps ingress and 2 KBps egress). Over 30 days this is 0.0095 TiB of data. The billable data volume is 0.0095 TiB, and when charged at US$40 per TiB, the charge is US$0.38. However, the free tier of the first 10 GB would reduce the charge to US$0. |
| Total charge with free tier | US$0 (Eventarc) + US$0 (Pub/Sub) = US$0 |
| Total charge without free tier | US$0 (Eventarc) + US$0.38 (Pub/Sub) = US$0.38 |
Pub/Sub event source example
Scenario: A Cloud Run service receiving one 512 KB event every second for a month (2,592,000 events) at a rate of 1 MBps from a Pub/Sub source.
| Usage of Eventarc | US$0 per million events published for 2,592,000 events. The charge is US$0. |
| Usage of the Pub/Sub transport layer | Assuming one Pub/Sub topic with one subscription and the subscriber is consuming all generated events. Pub/Sub has a transmission rate of 2 MBps (1 MBps ingress and 1 MBps egress). Over 30 days this is 4.715 TiB of data. The billable data volume is 4.715 TiB, and when charged at US$40 per TiB, the charge is US$188.60. However, the free tier of the first 10GB would reduce the charge to US$188.20. |
| Total charge with free tier | US$0 (Eventarc) + US$188.20 (Pub/Sub) = US$188.20 |
| Total charge without free tier | US$0 (Eventarc) + US$188.60 (Pub/Sub) = US$188.60 |
What's next
- Read the Eventarc Standard documentation.
- Read the Eventarc Advanced documentation.
- Learn about Eventarc solutions and use cases.
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