# XApiPricingTiersInner
## Properties
**tier** | Option<**String**> | Tier key derived from price (e.g. `x_api_005` for $0.005, `x_api_200` for $0.200). The first three keys map to the legacy `xApiCalls` aggregate; new tiers (e.g. `x_api_200` for the URL tier added April 2026) are surfaced here but not in the legacy shape. | [optional]
**price_per_call_usd** | Option<**f64**> | | [optional]
**operation_count** | Option<**i32**> | | [optional]
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