Polyrouter

About

Polyrouter is ranked #21 of 33 in LLM gateways on Inferse. It runs on API, Self-hosted, Web. There is a free plan.

Compared on LLM gateways

Free plan

Yespolyrouter.app

Fallback routing

Yespolyrouter.app

Usage analytics

Yespolyrouter.app

Self-hosted deployment

Yespolyrouter.app

Budget controls

Yespolyrouter.app

Virtual API keys

Yespolyrouter.app

Facts

Product

Polyrouter is an open-source LLM gateway that puts one endpoint in front of multiple model providers.polyrouter.app · 8 Oct 2026

Routing

It supports explicit model selection, header rules, routing tiers, and optional automatic routing layers.polyrouter.app · 8 Oct 2026

Fallbacks

Ordered fallback chains and per-provider circuit breakers help requests continue when a provider degrades.polyrouter.app · 8 Oct 2026

Budgets

Spend budgets can apply globally or per agent over day, week, or month windows and can alert or block requests at a threshold.polyrouter.app · 8 Oct 2026

Protocols

It supports OpenAI- and Anthropic-compatible APIs and translates requests between the two protocols.polyrouter.app · 8 Oct 2026

Integrations

Provider options include API keys, OAuth subscriptions, compatible custom endpoints, and self-hosted local models including Ollama, LM Studio, and llama.cpp.polyrouter.app · 8 Oct 2026

Agent compatibility

Any client that accepts a configurable base URL and API key can connect, including OpenAI- and Anthropic-compatible SDKs.polyrouter.app · 8 Oct 2026

Privacy

Request logs are metadata-only by default, and prompt or response capture is an opt-in self-hosted feature that is off by default.polyrouter.app · 8 Oct 2026

Security

Provider and notification credentials are encrypted at rest, and user-supplied URLs are checked against private and metadata address ranges.polyrouter.app · 8 Oct 2026

Deployment

Self-hosting requires Docker with Compose v2 and runs the SPA, API, and proxy alongside PostgreSQL 16 and Redis.polyrouter.app · 8 Oct 2026

License

Polyrouter is open source under the AGPL-3.0 license.polyrouter.app · 8 Oct 2026

Support

The maker directs bug reports, feature requests, and questions to GitHub.polyrouter.app · 8 Oct 2026

Managed hosting

Polyrouter Cloud is described as coming soon, with a waitlist for early access.polyrouter.app · 8 Oct 2026

Maker

Polyrouter is built and maintained by Anthony Izzo.polyrouter.app · 8 Oct 2026

Where it ranks on Inferse

• Best LLM Gateways in 2026#21 of 33

Sources

• polyrouter.app· checked 8 Oct 2026
• polyrouter.app/features· checked 8 Oct 2026
• polyrouter.app/docs· checked 8 Oct 2026
• polyrouter.app/about· checked 8 Oct 2026
• polyrouter.app/waitlist· checked 8 Oct 2026