Rate Limiter Python Packages

slowapi

A rate limiter for Starlette and FastAPI

pyrate-limiter

⚔️Python Rate-Limiter using Leaky-Bucket Algorithm Family

rush

Modular, way of implementing rate-limiting in python with a few handy default implementations

throttled-py

🔧 High-performance Python rate limiting library with multiple algorithms (Fixed Window, Sliding Window, Token Bucket, Leaky Bucket & GCRA) and storage backends (Redis, In-Memory).

throttler

🔀⏳ Easy throttling with asyncio support

mthrottle

A simple and generic rate limiter to prevent too many function calls or http requests.

self-limiters

Async distributed rate limiters for Python

llmratelimiter

Rate limiter for LLM

token-throttle

Multi-resource rate limiting for LLM APIs. Reserve tokens before you call, refund what you don't use, stay under the limit across workers.

aiohttp-ratelimiter

A rate limiter for the aiohttp.web framework

asyncio-redis-rate-limit

Rate limiter for async functions using Redis as a backend.

asyncmq

Async task queue with BullMQ-like features

pyresilience

Unified resilience patterns for Python — retry, circuit breaker, timeout, fallback, bulkhead, rate limiter, and cache in one decorator. Python's Resilience4j.

aiorate

Loop frequency regulation for asyncio

adaptive-rate-limiter

Provider-agnostic adaptive rate limiting for AI/ML APIs with intelligent scheduling, streaming support, and distributed backends

ratellmiter-ai

Rate limiter for LLM clients

djangorestframework-ratelimit

Cache-based rate-limiting for Django and Django REST Framework

credit-rate-limit

Easily rate limit async requests to API using credits, computation unit per second (CUPS) or request units, and to those just counting the number of requests per time unit

fastapi-redis-rate-limiter

fastapi rate limiter middleware

fastrict

Fastrict - Enterprise FastAPI Rate Limiter

easylimit

A simple, precise Python rate limiter with built-in context manager support for hassle-free API throttling.

centralized-rate-limiter

Utility to handle rate limiting and retries in a centralized manner. Single rate limit for all your request methods.

fastapi-cap

A robust, extensible, and production-ready rate limiting library for FastAPI, supporting multiple algorithms and Redis backend.

django-ratelimiter

Rate-limiting for django