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Upstash · Function

tokenBucket

Token Bucket limits requests with a bucket of tokens. Requests use one token, tokens refill over time, and empty buckets reject requests.

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Syntax

TokenBucket(max_tokens, refill_rate, interval)

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  • Ratelimit
  • Redis
  • Fixed Window
  • Sliding Window

Source: Ratelimit Python SDK Algorithms - Upstash Documentation. Checked 2026-11-03.