> ## Documentation Index > Fetch the complete documentation index at: https://docs.eluu.ai/llms.txt > Use this file to discover all available pages before exploring further. # API keys > Add your own Anthropic, OpenAI, Gemini, or other provider keys to Eluu for cost control, model choice, or compliance — with per-user budgets. Every Eluu plan includes credits — you don't need any keys to get started. Some teams prefer to bring their own keys, either to control cost or to use a specific provider. This page is in **Settings → API keys**. ## When to bring your own keys Three reasons teams do this: * **Cost.** If your team has volume discounts with Anthropic, OpenAI, or another provider, using your own key lets you keep that pricing. * **Provider preference.** Eluu uses Claude by default. If you want a different model — OpenAI, Gemini, Moonshot, others — your own keys let you pick. * **Compliance.** Some teams need usage to stay within their existing vendor relationships. If none of these apply to you, just use Eluu's bundled credits. They're metered fairly and don't require any setup. ## What you can add Two kinds of keys go here. **Anthropic / Claude key.** Eluu's primary model is Claude. If you have a Claude API key, paste it. Eluu uses your key for Claude calls; the cost shows up on your Anthropic bill instead of Eluu's. You can also connect a Claude OAuth account (the same login Anthropic offers Pro users). That uses your subscription rather than usage-based billing. **Other provider keys.** OpenAI, Google Gemini, DeepSeek, Z-AI, Moonshot, xAI. Paste each in the corresponding field. ## How keys are stored Every key is encrypted at rest. They're never visible after you save — if you need to update one, paste the new one and save again. There's no way to view the old one back. The encryption keys themselves rotate periodically. If you need to verify or rotate your own keys — after a security event, for example — revoke them on the provider side. Then paste fresh ones here. ## Removing a key Each key has a remove button next to it. Removing it switches that provider back to Eluu's bundled credits. Your colleagues keep working — they just bill against Eluu instead of your account. ## Setting per-user budgets If multiple people on your team use the same key, you can set a soft monthly budget per teammate. When a teammate goes over, their requests slow down (rather than fail) and you get an alert. Useful for keeping any one teammate from running away with the budget. ## Where to next See your plan's included credits. Bring teammates in.