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Self-hosted CostGraph runs in infrastructure you control. Your spend data is collected into your own install and stays in your network. It is one Helm chart, costgraph-selfhosted, and one API key.

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When you need it

Self-hosting is for organisations that cannot send infrastructure metadata to a third party: data residency rules, a restricted network, or a security review that will not permit it. If none of those apply, hosted CostGraph is less to operate.

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What still reaches CostGraph

Your install keeps a light connection to CostGraph for licensing, cloud price lists, and billing quantities.
Your cost data, resource inventory and metrics stay in your infrastructure. What leaves is your licence status, aggregate billing quantities, and requests for public cloud prices.
If that connection is lost, collection and everything you read keep working for a grace period. Past it the install becomes read-only and tells you so. New sign-ins are the exception, because they need the connection, so that is usually the first thing you notice.

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What you provide

You run the database, cache and metrics store; CostGraph runs on top of them. The chart can run all three for you to evaluate with, though not for production. See Install.

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What it reports on

Self-hosted CostGraph sees everything hosted CostGraph sees. You connect the same sources: The chart itself installs once for your organisation. Everything above connects to it afterwards.
Anything you deploy defaults to hosted CostGraph. On a self-hosted install you point it at your own address instead, or it reports to hosted CostGraph rather than to you. That is the most common mistake, and Install covers it.

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Pricing your own hardware

CostGraph prices cloud resources from the provider’s published rates. Hardware you own has no published rate to look up, so you register what it costs you and tag the resources that bill at it. That applies to bare metal and on-prem virtual machines, whether you measure them with the operator or the agent. See Pricing IDs, which is the same mechanism whether you self-host or not.
Until you register those rates, hardware you own is measured but has nothing to price against. Usage without cost on the dashboard is almost always this.

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Getting started

Install

What you need, the values file, and connecting your clusters.