First Request

Prerequisites

A Chuizi.AI API key (starts with ck-). See Create Account & API Key if you need one.

Send a Request

Install the SDK for your language. For Python, run pip install openai (or pip install anthropic for the Anthropic SDK). For Node.js, run npm install openai.

Then send a chat completion request. The curl example uses the OpenAI protocol; Python and Node.js use the OpenAI SDK; the last example uses the Anthropic SDK with the native protocol:

terminal

bash

curl https://api.chuizi.ai/v1/chat/completions \
  -H "Authorization: Bearer ck-your-key-here" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-4-6",
    "messages": [
      {"role": "user", "content": "What is the capital of France?"}
    ]
  }'

Verify in the Dashboard

After sending a request, go to app.chuizi.ai and check:

Logs — your request appears with model, token count, cost, and latency
Billing — the cost has been deducted from your balance
Overview — request count and token usage charts update

If the request shows up in the dashboard, your integration is working correctly.

Troubleshooting

Error	Cause	Fix
`401 Unauthorized`	Invalid or missing API key	Check that the key starts with `ck-` and is correctly set
`402 Insufficient quota`	Balance is zero	Top up at app.chuizi.ai/billing
`404 Model not found`	Incorrect model name	Use `provider/model` format (e.g., `anthropic/claude-sonnet-4-6`)
`429 Rate limited`	Too many requests	Wait and retry, or adjust your rate limit settings

Next Steps

Choose a Model — find the right model for your use case
Streaming Guide — detailed streaming implementation
Error Handling — handle errors gracefully in production