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Last updated: 2026-06-16

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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

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Step 2: Make a Request

Use https://api.crazyrouter.com/v1 as the default international access address. For East Asia, prefer https://cn.crazyrouter.com/v1. If you are unsure whether a tool should use the root domain or /v1, check API Endpoints first.
curl https://api.crazyrouter.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "gpt-5.5",
    "messages": [
      {"role": "user", "content": "Hello"}
    ]
  }'

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://api.crazyrouter.com/v1"
)

response = client.chat.completions.create(
    model="gpt-5.5",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'YOUR_API_KEY',
  baseURL: 'https://api.crazyrouter.com/v1'
});

const response = await client.chat.completions.create({
  model: 'gpt-5.5',
  messages: [{ role: 'user', content: 'Hello' }]
});
console.log(response.choices[0].message.content);

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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-5.5 example on this quickstart page has been updated to the 2026-06-06 documentation baseline.
All OpenAI-compatible clients and frameworks (such as LangChain, LlamaIndex, Cursor, etc.) can be integrated by simply changing the base_url and api_key.