Documentation
One key for OpenAI and Anthropic. These guides cover everything you need to ship — authentication, endpoints, model selection, and how token quotas are spent.
Auth, rate limits, idempotency, error envelopes, and the headers Virouter emits on every proxied response.
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Drop-in compatible base URLs for OpenAI and Anthropic SDKs. Swap the host, keep your code.
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What models are available right now, priority routing for Claude Opus 4.8, and how fallbacks work.
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How tokens are metered and reserved. Understand quota, top-ups, and read-only billing headers.
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