curl -X POST https://api.anthropic.com/v1/experimental/templatize_prompt \
     --header "x-api-key: $ANTHROPIC_API_KEY" \
     --header "anthropic-version: 2023-06-01" \
     --header "anthropic-beta: prompt-tools-2025-04-02" \
     --header "content-type: application/json" \
     --data \
'{
    "messages": [{"role": "user", "content": "Translate hello to German"}],
    "system": "You are an English to German translator"
}'

{
  "messages": [
    {
      "content": [
        {
          "text": "Translate {{WORD_TO_TRANSLATE}} to {{TARGET_LANGUAGE}}",
          "type": "text"
        }
      ],
      "role": "user"
    }
  ],
  "system": "You are a professional English to {{TARGET_LANGUAGE}} translator",
  "usage": [
    {
      "input_tokens": 490,
      "output_tokens": 661
    }
  ],
  "variable_values": {
    "TARGET_LANGUAGE": "German",
    "WORD_TO_TRANSLATE": "hello"
  }
}