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Step 1: Get Your API Key

  1. Visit Crazyrouter and create an account
  2. After signing in, go to the Token Management page
  3. Click “Create Token” to generate an API Key

Step 2: Make a Request

curl https://crazyrouter.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "gpt-5.4",
    "messages": [
      {"role": "user", "content": "Hello"}
    ]
  }'

Step 3: View the Response

Example of a successful response:
{
  "id": "chatcmpl-abc123",
  "object": "chat.completion",
  "created": 1677652288,
  "choices": [{
    "index": 0,
    "message": {
      "role": "assistant",
      "content": "Hello! How can I help you today?"
    },
    "finish_reason": "stop"
  }],
  "usage": {
    "prompt_tokens": 9,
    "completion_tokens": 12,
    "total_tokens": 21
  }
}
The gpt-5.4 example on this quickstart page was revalidated successfully against Crazyrouter production on 2026-03-23.
All OpenAI-compatible clients and frameworks (such as LangChain, LlamaIndex, Cursor, etc.) can be integrated by simply changing the base_url and api_key.