curl --request POST \
  --url https://api.traceloop.com/v2/evaluators/execute/prompt-perplexity \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "input": {
    "prompt": "What is the capital of France?"
  }
}
'

{
  "perplexity_score": 8.3
}