# Custom Cost Sources

Custom cost services represent internal or external costs that are not automatically ingested from native integrations.

In Finout, custom cost services allow you to import and allocate these costs alongside your cloud and SaaS spend. This helps you achieve full cost visibility by incorporating business-specific expenses such as internal tooling, shared services, or external vendors.

The following Custom Cost Sources can be integrated with Finout:

* [Custom Cost Centers](/billing-integrations/custom-cost-sources/custom-cost-centers.md)
* [Credentials Vault](/billing-integrations/custom-cost-sources/credentials-vault.md)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.finout.io/billing-integrations/custom-cost-sources.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
