RouterBase

RouterBase is an AI API gateway built for developers and small teams who are tired of integrating a new SDK, key, and billing relationship every time they want to try a different AI model. Instead of wiring up OpenAI, Anthropic, Google, Meta, Mistral, and the rest one by one, you connect once to a single OpenAI-compatible endpoint and reach 200+ models through it.

The setup is deliberately boring: grab one API key, point your existing OpenAI client at RouterBase's base URL, and your code keeps working. From there you can call chat, reasoning, vision, and embedding models from dozens of providers without changing a line. Swapping from one model to another — or running the same prompt across several to compare quality, latency, and cost — becomes a config change rather than a refactor.

Under the hood, smart routing picks a provider based on price, latency, or availability, and automatic failover keeps requests flowing when an upstream provider has an outage or rate-limits you. Because every request flows through one account, you also get a single place to watch spend and usage across all providers, instead of stitching together separate dashboards and invoices.

RouterBase has a free tier to start, then usage-based pricing that scales with what you actually call — there's no per-seat subscription to commit to before you've shipped anything. That makes it a practical fit for indie makers prototyping a feature, as well as small teams running production traffic who want model flexibility and one consolidated bill.

If you're building anything on top of large language models and want to stay provider-agnostic, RouterBase removes most of the plumbing so you can focus on the product.