> ## Documentation Index
> Fetch the complete documentation index at: https://docs.anyone.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Anyone — One API key for all AI models

> Access GPT-4o, Claude, Gemini, DeepSeek, and 40+ models with a single token, fully compatible with the OpenAI SDK.

One API key to call 40+ AI models. Sign up and start using immediately, pay as you go.

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/quickstart">
    Make your first API call in 3 minutes.
  </Card>

  <Card title="API reference" icon="code" href="/api-reference/overview">
    Request formats and parameter docs for all endpoints.
  </Card>

  <Card title="Model list" icon="list" href="/api-reference/models">
    View all currently available models.
  </Card>

  <Card title="Billing and top-up" icon="credit-card" href="/guides/billing-topup">
    Learn about pricing, top-up methods, and usage tracking.
  </Card>
</CardGroup>

## 3 steps to get started

<Steps>
  <Step title="Create an account">
    Visit [anyone.ai](https://www.anyone.ai) to sign up.
  </Step>

  <Step title="Get an API key">
    Create an API key in the dashboard and copy it.
  </Step>

  <Step title="Call the API">
    Set the base URL to `https://api.anyone.ai/v1`, use your API key as the API key, and you can call any model.
  </Step>
</Steps>