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Quick Start

Get started with the Zihin API in 5 minutes.

1. Get Your API Key​

Contact the Zihin team to get your API key. Keys follow the format:

zhn_live_xxxxx  (production)
zhn_test_xxxxx  (sandbox)

2. Make Your First Call​

curl -X POST https://llm.zihin.ai/api/v3/llm/public/call \
  -H "X-Api-Key: zhn_live_xxxxx" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "What is the capital of France?",
    "model": "auto"
  }'

3. Response​

{
  "success": true,
  "response": "The capital of France is Paris.",
  "model": "gpt-4o-mini",
  "provider": "openai",
  "usage": {
    "input_tokens": 15,
    "output_tokens": 8,
    "total_tokens": 23
  },
  "cost": 0.00015,
  "latency_ms": 450
}

Using Auto-Routing​

Set model: "auto" to let the system automatically select the best model for your task:

{
  "query": "Write a Python function to sort a list",
  "model": "auto"
}

The system analyzes your prompt and routes to the optimal model based on:

  • Task complexity
  • Cost efficiency
  • Response quality requirements

Next Steps​