> ## 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. # KeyBudgetResetInterval UTC window the spend is counted over (weeks start Monday); null for a lifetime budget that never resets. ## Example Usage ```python theme={null} from openrouter.components import KeyBudgetResetInterval # Open enum: unrecognized values are captured as UnrecognizedStr value: KeyBudgetResetInterval = "daily" ``` ## Values This is an open enum. Unrecognized values will not fail type checks. * `"daily"` * `"weekly"` * `"monthly"`