Frequently Asked Questions
Everything you need to know about using Router One. Can't find what you're looking for? Feel free to contact us.
What is Router One?
Router One is an LLM API gateway. It provides a unified OpenAI-compatible API endpoint for 40+ supported models from major providers (OpenAI, Anthropic, Google, Mistral, etc.), with intelligent routing, automatic fallback, cost optimization, and per-request observability — reachable worldwide, including mainland China, with payment by card, stablecoins, WeChat Pay, or Alipay.
How do I get an API Key?
Sign up for a Router One account, then go to Dashboard → API Keys to create a new key. Your key will start with "sk-". Use it in the Authorization header as "Bearer sk-xxx".
Which models are supported?
We support models from OpenAI (GPT-4o, o1, o3, etc.), Anthropic (Claude Opus, Sonnet, Haiku), Google (Gemini), Mistral, DeepSeek, and more. Visit the Model Marketplace to browse all available models with their pricing and capabilities.
How does smart routing work?
Your request names a model and the gateway selects an eligible provider route. Server-side adaptive paths can use recent latency, posted cost, and reliability signals; retryable upstream failures can move to another healthy candidate, with the final route recorded in the request trace. The public dashboard does not expose project-level routing weights.
How is billing handled?
Router One supports pay-per-token wallet billing and live subscription plans. Top up your balance via Stripe, USDT/USDC stablecoins, WeChat Pay, or Alipay, or choose a Pro, Max, or Ultra plan for predictable monthly access. If your usable credit reaches zero, API calls outside plan coverage will return a 402 error — top up to resume.
Is my data safe? Do you store request content?
We process requests in real time and do not retain your prompts or completions. Each request is proxied directly to the upstream provider. We only log metadata (model, tokens, cost, latency) for billing and observability — never the actual content.
How do I configure Claude Code or Codex to use Router One?
For OpenAI-compatible API clients and Codex CLI, set the base URL or OPENAI_BASE_URL to https://api.router.one/v1. For Claude Code and Anthropic-compatible clients, set ANTHROPIC_BASE_URL to https://api.router.one. Detailed setup guides are available in our documentation.
What should I do if I encounter an issue?
Check the Dashboard → Logs page to inspect recent requests and error codes. Common issues: 401 (invalid API key), 402 (insufficient balance), 429 (rate limit exceeded). For further help, email support@router.one or open an issue on our GitHub.