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Arcjet · Concept

Fixed window

Arcjet fixed-window rate limiting limits how many requests a client can make during a set time period. It supports live enforcement or dry-run logging and can identify clients with configured characteristics.

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Syntax

fixed_window(*, mode: Mode, window: int, max: int, characteristics: Sequence[str] = ()) -> FixedWindow

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  • Sliding window rate limit
  • Configuration
  • fingerprints
  • fixed_window
  • FixedWindow

Source: Rate limiting reference for Python + FastAPI | Arcjet Docs. Checked 2026-11-03.