RouterBase
One API for GPT, Claude, Gemini & 200+ AI models
One API for GPT, Claude, Gemini & 200+ AI models
RouterBase routes models from OpenAI, Anthropic, Google, Meta, and more through one OpenAI-compatible API—with smart routing, automatic fallback, and unified billing.
Use the official OpenAI SDK and point it at RouterBase:
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.ROUTERBASE_API_KEY,
baseURL: "https://routerbase.com/v1",
});
const response = await client.chat.completions.create({
model: process.env.ROUTERBASE_MODEL,
messages: [{ role: "user", content: "Hello from RouterBase" }],
});
console.log(response.choices[0].message.content);Explore the quickstart for Node.js, Python, cURL, and model discovery.
| Resource | What you will find |
|---|---|
| Examples | Practical starters for Node.js, Python, Docker, Go, Ruby, and TypeScript runtimes. |
| API Collections | OpenAPI, Postman, Bruno, and Insomnia collections. |
| Cookbook | Focused tutorials and small, reusable examples. |
| Awesome RouterBase | A curated directory of RouterBase packages, SDKs, tools, and guides. |
| RouterBase CLI | A dependency-free command-line client for chat completions and model listing. |
| Setup RouterBase | A GitHub Action for configuring RouterBase in CI workflows. |
- OpenAI-compatible: migrate an existing integration by changing the API key and base URL.
- One model catalog: use a single endpoint across supported providers and modalities.
- Built for resilient applications: use smart routing and automatic fallback without maintaining separate provider integrations.
- Read the documentation for API guides and endpoint references.
- Browse the live model catalog before choosing a model ID.
- Open an issue in the repository that owns the example, SDK, or tool you are using.
- For product support, contact support@routerbase.com.
Build with the model you need, through the API you already know.
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TensorZero is an open-source stack for industrial-grade LLM applications. It unifies an LLM gateway, observability, optimization, evaluation, and experimentation.
- devcontainer-feature-routerbase Public
Dev Container Feature for RouterBase OpenAI-compatible configuration
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