Committed Use Discount (CUD) planner
Model 1-year and 3-year resource-based and spend-based CUDs against your real workload elasticity. Avoid over-committing during seasonal spikes.
GCP cost management
Reduce your GCP bill 25–40% — without touching a single IAM policy.
Committed Use Discount planning, GKE rightsizing, BigQuery slot analysis and idle Cloud SQL detection — connected via Workload Identity Federation, zero key files.
WIF
Workload Identity Federation
0 keys
No service-account JSON
Read-only
Viewer + BigQuery Data Viewer
GCP's billing model rewards teams who model Committed Use Discounts, optimize Cloud SQL/BigQuery and rightsize GKE node pools — and punishes the rest. Lumicost ingests your BigQuery billing export, joins it with Cloud Monitoring metrics, and delivers GCP-specific recommendations with USD impact. Read-only access, no service-account keys, no agent.
How Lumicost delivers GCP cost management
GKE & GKE Autopilot rightsizing
Pod-level cost allocation, node pool right-sizing, Spot VM safety scoring and idle deployment detection.
BigQuery slot & storage optimization
Identify expensive recurring queries, partition/cluster opportunities, and idle storage. Compare on-demand vs flat-rate slot economics.
Cloud SQL & Spanner rightsizing
Detect over-provisioned tiers, unused replicas and storage growth anomalies.
Workload Identity Federation onboarding
Connect via WIF in 5 minutes. No service-account key files, no manual rotation, no IAM write permissions.
Frequently asked questions
Do I need to give Lumicost service-account keys?+
No. We strongly recommend Workload Identity Federation, which uses short-lived tokens and never exposes a long-lived key. Service-account key files are supported as a fallback but discouraged.
Does Lumicost require my BigQuery billing export?+
Yes — it's the most accurate GCP cost data source. We provide a one-click setup script that creates a BigQuery dataset and grants Data Viewer access only to that dataset.
How are CUD recommendations calculated?+
We simulate 1y/3y CUDs against the past 90 days of usage, filtered to workloads with >70% predictable utilization, and present break-even points per region and machine family.
Does it support multi-project organizations?+
Yes. Onboard at the organization level via WIF and we automatically discover all projects, billing accounts and folders.
Ready to start saving?
Connect read-only credentials, get your first insights in 24 hours.