HTTP and cURL

{
  "model": "YOUR_MODEL_ID",
  "messages": [{ "role": "user", "content": "Say hello in one short sentence." }]
}

curl --fail-with-body --silent --show-error --max-time 60 \
  "$API_BASE_URL/chat/completions" \
  -H "Authorization: Bearer $API_KEY" \
  -H 'Content-Type: application/json' \
  --data-binary @request.json

{
  "model": "YOUR_MODEL_ID",
  "input": "Say hello in one short sentence."
}

curl --fail-with-body --silent --show-error --max-time 60 \
  "$API_BASE_URL/responses" \
  -H "Authorization: Bearer $API_KEY" \
  -H 'Content-Type: application/json' \
  --data-binary @request.json