RouterBase

RouterBase gives developers and teams a single OpenAI-compatible API to access 200+ AI models from providers like OpenAI, Anthropic, Google, and Meta. Instead of integrating and maintaining separate SDKs, API keys, rate limits, and bills for each provider, you point your existing code at one endpoint and switch or combine models with a one-line change.

Key capabilities include smart routing across providers, automatic failover when a model or provider is unavailable, and unified usage-based billing across every model. RouterBase typically runs about 5% below standard provider rates, with per-model pricing shown on each model page.

It's built for teams adding AI features, comparing models, or needing reliability and cost control across multiple providers — all through one consistent, OpenAI-compatible interface. A free tier is available to start.