fallback — open-source software health

NuGet

99Exceptionalhealth index

Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and thread-safe manner. From version 6.0.1, Polly targets .NET Standard 1.1 and 2.0+.

C#★ 14.2KAug 27, 2026

BSD-3-ClauseAug 27, 2026 · metrics 2.10.0

npm

94Exceptionalhealth index

diegosouzapw/OmniRoute

Never stop coding. Free MIT AI gateway: one endpoint, 290+ providers (90+ free), 500+ models — Kimi, Claude, GPT, OpenAI, Gemini, GLM, DeepSeek, MiniMax. Works with Claude Code, Codex, Cursor, OpenCode, Cline & Copilot. Quota-aware auto-fallback, RTK+Caveman compression saves 15-95% tokens, MCP/A2A, Desktop/PWA. Built by 500+ contributors

TypeScript★ 39.9K↓ 196.4K/moAug 5, 2026

MITAug 5, 2026 · metrics 2.10.0

npm

87Excellenthealth index

pusher/pusher-js

Pusher Javascript library

JavaScript · TypeScript★ 2,219↓ 8.8M/moAug 2, 2026

MITAug 2, 2026 · metrics 2.10.0

Maven · PyPI

83Excellenthealth index

societe-generale/failover

A generic lib to manage the failover on external referential service

Java · HTML★ 11Sep 5, 2026

Apache-2.0Sep 5, 2026 · metrics 2.10.0

Packagist

80Excellenthealth index

florianv/exchanger

PHP exchange rate provider layer for currency conversion: 30 services, chain fallback, and caching.

PHP★ 186↓ 96.8K/moJul 15, 2026

MITJul 15, 2026 · metrics 2.10.0

npm

78Goodhealth index

daiso-tech/daiso-core

@daiso-tech/core is a TypeScript-first backend library for building web apps and API servers. It includes an ecosystem of official packages designed to work seamlessly together.

TypeScript★ 7↓ 2,732/moJul 25, 2026

Apache-2.0Jul 25, 2026 · metrics 2.10.0

npm

75Goodhealth index

linhnguyen-gt/Routiform

No repository description published.

TypeScript · Svelte · JavaScript★ 11↓ 2,494/moJul 17, 2026

MITJul 17, 2026 · metrics 2.10.0

PyPI

62Moderatehealth index

zephel01/coderouter

No repository description published.

Python★ 35↓ 2,920/moJul 15, 2026

MITJul 15, 2026 · metrics 2.10.0

npm

57Moderatehealth index

minpeter-labs/ai-router

Provider-agnostic, modality-aware language model router with fallback for the Vercel AI SDK.

TypeScript★ 4↓ 7,777/moJul 21, 2026

MITJul 21, 2026 · metrics 2.10.0

npm

51Moderatehealth index

sindresorhus/figures

Unicode symbols with fallbacks for older terminals

JavaScript★ 632↓ 300M/moAug 4, 2026

MITAug 4, 2026 · metrics 2.10.0

npm

50Moderatehealth index

xk1ko/aigloo

Self-hosted AI gateway. Route, translate and track requests across providers, with access keys, budgets, and a built-in dashboard.

TypeScript★ 4↓ 3,711/moJul 25, 2026

MITJul 25, 2026 · metrics 2.10.0

PyPI

48Weakhealth index

Boundless-Studios/agentrunner

Host-agnostic LLM agent execution on the OpenAI Agents SDK: model fallback, streaming, structured-output extraction, self-correction, and tracing — behind a small injected provider seam.

Python★ 0↓ 11.5K/moAug 1, 2026

MITAug 1, 2026 · metrics 2.10.0

PyPI

48Weakhealth index

nerigleston/jangada

No repository description published.

Python★ 0↓ 9,002/moJul 19, 2026

MITJul 19, 2026 · metrics 2.10.0

npm · Go

47Weakhealth index