Structured outputs

import json
import os
from openai import OpenAI

client = OpenAI(base_url="https://api.naga.ac/v1", api_key=os.environ["NAGAAI_API_KEY"])

completion = client.chat.completions.create(
    model="deepseek-v4.1-flash",
    messages=[{"role": "user", "content": "Name one European capital and its country."}],
    response_format={
        "type": "json_schema",
        "json_schema": {
            "name": "capital",
            "strict": True,
            "schema": {
                "type": "object",
                "properties": {"city": {"type": "string"}, "country": {"type": "string"}},
                "required": ["city", "country"],
                "additionalProperties": False,
            },
        },
    },
)

print(json.loads(completion.choices[0].message.content))

import OpenAI from "openai";

const client = new OpenAI({ baseURL: "https://api.naga.ac/v1", apiKey: process.env.NAGAAI_API_KEY });

const completion = await client.chat.completions.create({
  model: "deepseek-v4.1-flash",
  messages: [{ role: "user", content: "Name one European capital and its country." }],
  response_format: {
    type: "json_schema",
    json_schema: {
      name: "capital",
      strict: true,
      schema: {
        type: "object",
        properties: { city: { type: "string" }, country: { type: "string" } },
        required: ["city", "country"],
        additionalProperties: false,
      },
    },
  },
});

console.log(JSON.parse(completion.choices[0].message.content));

curl https://api.naga.ac/v1/chat/completions \
  -H "Authorization: Bearer $NAGAAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4.1-flash",
    "messages": [{"role": "user", "content": "Name one European capital and its country."}],
    "response_format": {
      "type": "json_schema",
      "json_schema": {
        "name": "capital",
        "strict": true,
        "schema": {
          "type": "object",
          "properties": {"city": {"type": "string"}, "country": {"type": "string"}},
          "required": ["city", "country"],
          "additionalProperties": false
        }
      }
    }
  }'