EventBridge Pricing Calculator - Event Buses, Pipes, Scheduler & More

This EventBridge pricing calculator uses official AWS pricing data updated regularly from Amazon's public pricing API. It accounts for regional pricing differences, payload chunk metering, and free tier benefits for Scheduler and Schema Discovery. For production budgets, verify final costs in the AWS Billing console since pricing occasionally changes.

Event Bus is ideal when you need to route events to multiple targets or want decoupled architectures. EventBridge Pipesat $0.40/million is better for point-to-point integrations where you have a single source and target. It's 60% cheaper than Event Bus ($1.00/million) and includes built-in filtering, enrichment, and transformation.

EventBridge Scheduler includes 14 million free invocations per monthacross all regions. This is a permanent free tier, not limited to 12 months. After the free tier, you pay $1.00 per million invocations. For most development and moderate production workloads, you'll stay within the free tier.

Events are metered in 64 KB chunks for Event Bus, Pipes, and API Destinations. A 256 KB event counts as 4 billable events. Schema Discovery uses smaller 8 KB chunks. Keep payloads small by sending only necessary data and storing large payloads in S3 with just a reference in the event.

Delivering events to services in the same AWS account is free. Cross-account delivery costs $0.05/million for custom and partner events, or $1.00/million for AWS management events. Same-account delivery to Lambda, SQS, SNS, Step Functions, and other targets has no additional charge beyond the event ingestion cost.

Event Replay has three cost components: Archive Processing at $0.10/GB for data archived, Storage at $0.023/GB-month for archived data, and Replayed Events charged at the custom events rate ($1.00/million). Only archive events you genuinely need to replay to control costs.

Schema Registry is completely free. Storing and using schemas costs nothing. Schema Discovery, which automatically detects event schemas, includes a 5 million event free tier per month, then costs $0.10/million. Discovery events are metered in 8 KB chunks, smaller than the 64 KB chunks used for Event Bus.