Fallback Python Packages

pyresilience

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

neutral-llm-gateway

Neutral LLM gateway: typed contracts, provider adapters, explicit retry/fallback/usage/cost accounting.

callm-toolkit

The production toolkit for LLM calls: caching, retries, provider fallback, cost tracking, PII redaction, prompt-injection detection and structured output in one decorator.

llm-circuit-breaker

A tiny, readable circuit breaker for LLM calls: hard budget caps that fail over to a free local model instead of raising or overspending.

ardguard

Task-specific eligibility and safe fallback between agentic resource discovery and invocation.

agent-fallback-sentinel

Lightweight production middleware for resilient LLM calls: retries, fallback routing, circuit-breaking, and schema validation.

ragfallback

ragfallback is a Python library that prevents silent RAG failures — chunk quality, retrieval fallback, adaptive querying, and answer evaluation in one package.

ai-switch

Free-tier AI provider router: automatic fallback across Groq, OpenRouter, and NVIDIA.

llm-cascade

Free-first LLM routing for Python: local Ollama -> OpenRouter free tier -> paid Anthropic API, with automatic fallback and a savings ledger. Zero required dependencies.

ballast-agents

Resilience and cost-control plane for multi-agent AI systems - circuit breakers, backpressure, cost-aware fallback routing, and chaos testing for LLM/agent pipelines, with a live dashboard

flowguard-core

High-performance Async Rate Limiting, Circuit Breaking & Resilience Orchestration for LLM & API Pipelines.

py18n

I18n for discord.py

edgeless-smart-scraper

Multi-backend web scraper with firecrawl, tavily, and requests fallback

broadcastio

Provider-agnostic outbound message orchestration with fallback delivery and clear failure semantics.

larzretry

Composable, observable resilience: retry, circuit breaker, fallback, and timeout that stack. Pure Python, zero dependencies.

django-locale-chain

Smart locale fallback chains for Django. pt-BR falls back to pt-PT, not English.

reliable-ai-streams-py

L0: The Missing Reliability Substrate for AI. Streaming-first. Reliable. Replayable. Deterministic. Multimodal. Retries. Continuation. Fallbacks (provider & model). Consensus. Parallelization. Guardrails. Atomic event logs. Byte-for-byte replays.

flask-babel-locale-chain

Smart locale fallback chains for Flask-Babel. pt-BR falls back to pt-PT, not English.

python-i18n-locale-chain

Smart locale fallback chains for python-i18n. pt-BR falls back to pt-PT, not English.

pyfallback

Fallback for python objects