Gate 1
Allocation contract
Define whether finance needs user, role, team, department, project, application, cost center, or environment attribution and who owns untagged spend.
Identity-to-invoice evidence
Bedrock Mantle Cost Allocation Readiness
Describe the allocation decision, IAM and federation chain, gateways, endpoint and APIs, principal or session tags, Projects, Cost Explorer, CUR 2.0, reporting delay, reconciliation, privacy, and controls. Generate a pilot plan rather than calling attribution chargeback-ready.
Four readiness gates
Gate 2
Identity flow
Map direct, federated, STS, API gateway, and LLM gateway calls; choose principal tags, session tags, Projects, inference profiles, or request metadata for distinct jobs.
Gate 3
Billing artifacts
Verify supported endpoint and API, tag activation, non-retroactive timing, caller-identity-enabled CUR 2.0, Cost Explorer visibility, latency, row growth, storage, and access.
Gate 4
Reconciliation and control
Match principal rows to invoices, quantify shared or untagged remainder, protect personal data, and add IAM, budgets, alerts, quotas, anomaly response, offboarding, and disputes.
Classify the remaining work
Ready for showback pilot
Controlled requests appear under expected principal and workload dimensions, totals reconcile, access is approved, and untagged spend has an owner.
Fix identity flow
A shared gateway role collapses users or tenants, session tags are missing, or one dimension is being stretched across identity and application needs.
Fix billing pipeline
Tags are inactive, data is expected retroactively, CUR lacks caller identity, row growth is unplanned, or reports do not reconcile to billed totals.
Minimum validation
Send small controlled requests through every caller pattern. After the billing delay, verify endpoint, principal ARN, active tag values, account, Region, model, usage, Cost Explorer grouping, CUR rows, untagged remainder, and total reconciliation.
Read the allocation guide
Bedrock Mantle IAM principal cost allocationReview endpoint support, identity and session tags, Projects, Cost Explorer, CUR 2.0, shared gateways, reporting delay, and governance.Official facts checked August 15, 2026. Recheck supported endpoints, APIs, Regions, billing schemas, tag timing, quotas, and AWS documentation.
Frequently Asked Questions
It turns your allocation dimensions, caller chain, endpoint, tags, Cost Explorer, CUR 2.0, reconciliation, privacy, and spend-control facts into a pilot checklist. It does not access AWS or approve chargeback.
Yes. AWS announced principal attribution for supported inference requests through bedrock-mantle on August 11, 2026. Verify the current endpoint, API, Region, and documentation.
No. AWS says cost allocation tags are not retroactive. Existing CUR exports also need to be replaced with a caller-identity-enabled CUR 2.0 export for identity data.
No. AWS says cost data can take up to 24 hours to appear. Use IAM, quotas, budgets, alerts, application limits, and anomaly response as separate controls.