curl --request POST \
  --url https://api.helicone.ai/v2/experiment/new \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "originalPromptVersion": "<string>",
  "name": "<string>"
}
'

{
  "data": {
    "experimentId": "<string>"
  },
  "error": null
}