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AnyFast provides a unified API to access AI models from multiple providers — including chat, image generation, and video generation. This guide gets you up and running with your first API call.

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Get started in three steps

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Step 1: Create an account

Sign up at anyfast.ai to create your account.

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Step 2: Get your API key

Head to the Console to generate your API key. Keep it safe — you’ll use it to authenticate every request.

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Step 3: Make your first API call

Use your API key to call a chat model. The example below uses Claude 3.5 Sonnet via the OpenAI-compatible endpoint: 
curl https://www.anyfast.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-3-5-sonnet-20241022",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }'
Configure your channel first. Each model maps to a specific channel. You must enable the corresponding channel in the console before your API calls will succeed. Go to the Console to check your channel settings.

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Next steps

API Reference

Authentication, base URL, and error codes.

Model APIs

Browse all available models by provider.