> ## Documentation Index > Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # SessionCostResponse ## Fields | Field | Type | Required | Description | | ------ | ---------------------------------------------------------------------------- | -------------------- | ----------- | | `Data` | \[][components.SessionCostItem](../../models/components/sessioncostitem.mdx) | :heavy\_check\_mark: | N/A | | `Meta` | [components.SessionCostMeta](../../models/components/sessioncostmeta.mdx) | :heavy\_check\_mark: | N/A |