estimate_cost

Rough monthly cost estimate from a list of {service, usage} items.

Approximate

Uses an embedded simplified pricing table (us-east-1, on-demand). Verify with the AWS Pricing Calculator before any commercial decision.

Signature

estimate_cost(line_items: list[dict]) -> dict

Supported services and usage knobs

Service key	Usage knobs
lambda	requests, gb_seconds
dynamodb	on_demand_reads, on_demand_writes, gb_storage
s3	gb_storage, get_requests, put_requests, egress_gb
api_gateway	http_requests
cloudfront	egress_gb, requests
rds	instance_hours, hourly_rate, gb_storage
ec2	instance_hours, hourly_rate
bedrock	input_ktokens, output_ktokens
opensearch_serverless	ocu_hours
step_functions	transitions
sqs	requests
eventbridge	events
cognito	maus

Example

{
  "line_items": [
    { "service": "lambda", "usage": { "requests": 50000000, "gb_seconds": 5000000 } },
    { "service": "dynamodb", "usage": { "on_demand_reads": 200000000, "on_demand_writes": 50000000, "gb_storage": 200 } },
    { "service": "api_gateway", "usage": { "http_requests": 50000000 } },
    { "service": "bedrock", "usage": { "input_ktokens": 50000, "output_ktokens": 20000 } }
  ]
}

Returns a monthly_total_usd plus a per-service breakdown and a transparency disclaimer.