Google Cloud Managed Service for Prometheus pricing

As cloud.google.com lists them, read 7 Oct 2026. The maker's own page has the final word.

Plan	Billed and limits	Price
Monitoring API read calls	Write API calls have no charge; read API calls are charged by time series returned. · First 1 million time series returned per billing account each month are free · No charge for read API calls issued through the Google Cloud console, excluding Cloud Shell	$0.50 a month
Metrics ingestion	By samples ingested; sample counts are per billing account. · No free allotment per month · 24-month retention at no additional charge	On request