curl --location 'https://api.inworld.ai/llm/v1alpha/completions:completeChat' \
--header "Authorization: Basic $INWORLD_API_KEY" \
--header 'Content-Type: application/json' \
--data '{
  "servingId": {
    "modelId": {
      "model": "gpt-4o-mini",
      "serviceProvider": "SERVICE_PROVIDER_OPENAI"
    },
    "userId": "user-123"
  },
  "messages": [
    {"role": "MESSAGE_ROLE_USER", "content": "Hello, how are you?"}
  ],
  "textGenerationConfig": {
    "maxTokens": 100,
    "stream": false
  }
}'

import os
import requests

url = "https://api.inworld.ai/llm/v1alpha/completions:completeChat"
headers = {
    "Authorization": f"Basic {os.getenv('INWORLD_API_KEY')}",
    "Content-Type": "application/json"
}
payload = {
    "servingId": {
        "modelId": {
            "model": "gpt-4o-mini",
            "serviceProvider": "SERVICE_PROVIDER_OPENAI"
        },
        "userId": "user-123"
    },
    "messages": [
        {"role": "MESSAGE_ROLE_USER", "content": "Hello, how are you?"}
    ],
    "textGenerationConfig": {
        "maxTokens": 100,
        "stream": False
    }
}

response = requests.post(url, json=payload, headers=headers)
print(response.json())

const url = 'https://api.inworld.ai/llm/v1alpha/completions:completeChat';

const response = await fetch(url, {
  method: 'POST',
  headers: {
    'Authorization': `Basic ${process.env.INWORLD_API_KEY}`,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    servingId: {
      modelId: {
        model: 'gpt-4o-mini',
        serviceProvider: 'SERVICE_PROVIDER_OPENAI',
      },
      userId: 'user-123',
    },
    messages: [
      { role: 'MESSAGE_ROLE_USER', content: 'Hello, how are you?' },
    ],
    textGenerationConfig: {
      maxTokens: 100,
      stream: false,
    },
  }),
});

const data = await response.json();
console.log(data);

{
  "result": {
    "id": "chatcmpl-D0KDzqXlvlNfWI00Ynj5eRFoI14Dw",
    "choices": [
      {
        "finishReason": "FINISH_REASON_STOP",
        "message": {
          "content": "Hello! I'm just a program, so I don't have feelings, but I'm here and ready to help you. How can I assist you today?",
          "role": "MESSAGE_ROLE_ASSISTANT"
        }
      }
    ],
    "createTime": "2026-01-21T04:35:15Z",
    "model": "gpt-4o-mini",
    "usage": {
      "completionTokens": 29,
      "promptTokens": 13
    },
    "serviceProvider": "SERVICE_PROVIDER_OPENAI"
  }
}

{
  "code": 123,
  "message": "<string>",
  "details": [
    {
      "@type": "<string>"
    }
  ]
}