Most AWS payment infrastructure bills don't look alarming at current transaction volume. They look alarming six months after a growth event — when Lambda invocations, DynamoDB read units, Step Functions state transitions, and Secrets Manager API calls have all scaled together. Model the cost before the growth event, not after the first unexpected invoice.
The specific outcomes this tool produces — and the problems it prevents.
Model your current payment stack cost at 2×, 5×, and 10× transaction volume. The services that scale linearly are visible. The ones that scale super-linearly — Step Functions state transitions, Secrets Manager API calls, CloudWatch custom metrics — surface before you've committed to a growth plan that makes them painful.
Per-service cost breakdown at each volume scenario shows which AWS service becomes the dominant cost driver as volume scales. Optimisation decisions made before growth are architectural choices. The same decisions made after growth are expensive migrations.
Compare on-demand cost against Reserved Capacity pricing at your projected volumes. A Provisioned Concurrency or DynamoDB reserved capacity commitment made with a volume model is a cost decision. The same commitment made on instinct is a gamble.
Export a cost projection report with per-service breakdowns, volume scenario tables, and optimisation recommendations. A cost conversation with a model behind it is a business planning discussion. Without it, it's a negotiation about guesses.
Structured inputs. Immediate output. No setup, no waiting, no consultant required.
Define your current stack
Select the AWS services in your payment infrastructure — Lambda, Step Functions, API Gateway, DynamoDB, SQS, Secrets Manager, CloudWatch. Enter current monthly transaction volume.
Set volume scenarios
Define 2×, 5×, and 10× transaction volume targets and the timeline for each. The model scales each service's cost according to its specific pricing dimensions.
Review per-service cost breakdown
See the cost projection for each service at each volume scenario. Identify which services scale linearly and which produce non-linear cost growth.
Evaluate reserved capacity options
Compare on-demand against Reserved Concurrency, DynamoDB reserved capacity, and Savings Plans at your projected volumes. See the break-even point for each commitment.
Export the cost projection report
Download a cost model report with per-service breakdowns, scenario comparisons, and prioritised optimisation recommendations for your growth plan.
Available on Scope and above. Export cost projection reports with Sync.