curl https://aireiter.com/api/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-5-20250929",
    "messages": [
      {"role": "user", "content": "こんにちは、世界"}
    ]
  }'

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://aireiter.com/api/v1"
)

response = client.chat.completions.create(
    model="claude-sonnet-4-5-20250929",
    messages=[
        {"role": "user", "content": "こんにちは、世界"}
    ]
)

print(response.choices[0].message.content)

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: process.env.API_KEY,
  baseURL: 'https://aireiter.com/api/v1'
});

const response = await client.chat.completions.create({
  model: 'claude-sonnet-4-5-20250929',
  messages: [
    { role: 'user', content: 'こんにちは、世界' }
  ]
});

console.log(response.choices[0].message.content);

package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "io/ioutil"
    "net/http"
    "os"
)

func main() {
    url := "https://aireiter.com/api/v1/chat/completions"

    payload := map[string]interface{}{
        "model": "claude-sonnet-4-5-20250929",
        "messages": []map[string]string{
            {"role": "user", "content": "こんにちは、世界"},
        },
    }

    jsonData, _ := json.Marshal(payload)

    req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
    req.Header.Set("Authorization", "Bearer "+os.Getenv("API_KEY"))
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := ioutil.ReadAll(resp.Body)
    fmt.Println(string(body))
}

import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.URI;

public class Main {
    public static void main(String[] args) throws Exception {
        String url    = "https://aireiter.com/api/v1/chat/completions";
        String apiKey = System.getenv("API_KEY");

        String payload = """
        {
          "model": "claude-sonnet-4-5-20250929",
          "messages": [
            {"role": "user", "content": "こんにちは、世界"}
          ]
        }
        """;

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create(url))
            .header("Authorization", "Bearer " + apiKey)
            .header("Content-Type", "application/json")
            .POST(HttpRequest.BodyPublishers.ofString(payload))
            .build();

        HttpResponse<String> response = client.send(request,
            HttpResponse.BodyHandlers.ofString());
        System.out.println(response.body());
    }
}

<?php

$url    = "https://aireiter.com/api/v1/chat/completions";
$apiKey = getenv('API_KEY');

$payload = [
    "model"    => "claude-sonnet-4-5-20250929",
    "messages" => [
        ["role" => "user", "content" => "こんにちは、世界"]
    ]
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Authorization: Bearer " . $apiKey,
    "Content-Type: application/json"
]);

$response = curl_exec($ch);
curl_close($ch);
echo $response;
?>

require 'net/http'
require 'json'
require 'uri'

url     = URI("https://aireiter.com/api/v1/chat/completions")
api_key = ENV['API_KEY']

payload = {
  model:    "claude-sonnet-4-5-20250929",
  messages: [{ role: "user", content: "こんにちは、世界" }]
}

http         = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request                   = Net::HTTP::Post.new(url)
request["Authorization"]  = "Bearer #{api_key}"
request["Content-Type"]   = "application/json"
request.body              = payload.to_json

puts http.request(request).body

import Foundation

let url    = URL(string: "https://aireiter.com/api/v1/chat/completions")!
let apiKey = ProcessInfo.processInfo.environment["API_KEY"] ?? ""

let payload: [String: Any] = [
    "model":    "claude-sonnet-4-5-20250929",
    "messages": [["role": "user", "content": "こんにちは、世界"]]
]

var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Bearer \(apiKey)", forHTTPHeaderField: "Authorization")
request.setValue("application/json",  forHTTPHeaderField: "Content-Type")
request.httpBody = try? JSONSerialization.data(withJSONObject: payload)

URLSession.shared.dataTask(with: request) { data, _, _ in
    if let data = data {
        print(String(data: data, encoding: .utf8) ?? "")
    }
}.resume()

using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var url    = "https://aireiter.com/api/v1/chat/completions";
        var apiKey = Environment.GetEnvironmentVariable("API_KEY");

        var payload = @"{
            ""model"": ""claude-sonnet-4-5-20250929"",
            ""messages"": [
                {""role"": ""user"", ""content"": ""こんにちは、世界""}
            ]
        }";

        using var client = new HttpClient();
        client.DefaultRequestHeaders.Add("Authorization", $"Bearer {apiKey}");

        var content  = new StringContent(payload, Encoding.UTF8, "application/json");
        var response = await client.PostAsync(url, content);
        Console.WriteLine(await response.Content.ReadAsStringAsync());
    }
}

#include <stdio.h>
#include <curl/curl.h>
#include <stdlib.h>
#include <string.h>

int main(void) {
    CURL *curl;
    const char *api_key = getenv("API_KEY");

    curl_global_init(CURL_GLOBAL_DEFAULT);
    curl = curl_easy_init();

    if (curl) {
        const char *payload =
            "{\"model\":\"claude-sonnet-4-5-20250929\","
            "\"messages\":[{\"role\":\"user\",\"content\":\"こんにちは、世界\"}]}";

        char auth_header[256];
        snprintf(auth_header, sizeof(auth_header), "Authorization: Bearer %s", api_key);

        struct curl_slist *headers = NULL;
        headers = curl_slist_append(headers, auth_header);
        headers = curl_slist_append(headers, "Content-Type: application/json");

        curl_easy_setopt(curl, CURLOPT_URL, "https://aireiter.com/api/v1/chat/completions");
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload);
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);

        curl_easy_perform(curl);
        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }

    curl_global_cleanup();
    return 0;
}

import 'dart:convert';
import 'dart:io';
import 'package:http/http.dart' as http;

void main() async {
  final url    = Uri.parse('https://aireiter.com/api/v1/chat/completions');
  final apiKey = Platform.environment['API_KEY']!;

  final response = await http.post(
    url,
    headers: {
      'Authorization': 'Bearer $apiKey',
      'Content-Type':  'application/json',
    },
    body: jsonEncode({
      'model':    'claude-sonnet-4-5-20250929',
      'messages': [{'role': 'user', 'content': 'こんにちは、世界'}],
    }),
  );

  print(response.body);
}

library(httr)
library(jsonlite)

url     <- "https://aireiter.com/api/v1/chat/completions"
api_key <- Sys.getenv("API_KEY")

response <- POST(
  url,
  add_headers(
    `Authorization` = paste("Bearer", api_key),
    `Content-Type`  = "application/json"
  ),
  body = toJSON(list(
    model    = "claude-sonnet-4-5-20250929",
    messages = list(list(role = "user", content = "こんにちは、世界"))
  ), auto_unbox = TRUE),
  encode = "raw"
)

cat(content(response, "text"))

{
  "id": "chatcmpl-9vKqnMf3Ax8ZpRdTw2LsYe7b",
  "object": "chat.completion",
  "created": 1741680000,
  "model": "claude-sonnet-4-5-20250929",
  "task_id": "task_abc123",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "こんにちは！何かお手伝いできることはありますか？"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 12,
    "completion_tokens": 15,
    "total_tokens": 27
  }
}

{
  "id": "chatcmpl-9vKqnMf3Ax8ZpRdTw2LsYe7b",
  "object": "chat.completion",
  "created": 1741680000,
  "model": "claude-sonnet-4-5-20250929",
  "task_id": "task_abc123",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": null,
        "tool_calls": [
          {
            "id": "call_01A09q90qw90lq917835lq9",
            "type": "function",
            "function": {
              "name": "get_weather",
              "arguments": "{\"city\": \"北京\"}"
            }
          }
        ]
      },
      "finish_reason": "tool_calls"
    }
  ],
  "usage": {
    "prompt_tokens": 85,
    "completion_tokens": 22,
    "total_tokens": 107
  }
}

{
  "error": {
    "message": "messages は必須で空ではいけません",
    "type": "invalid_request_error",
    "param": null,
    "code": null
  }
}

{
  "error": {
    "message": "無効なAPIキーです",
    "type": "invalid_request_error",
    "param": null,
    "code": null
  }
}

{
  "error": {
    "message": "クレジットが不足しています",
    "type": "invalid_request_error",
    "param": null,
    "code": null
  }
}

{
  "error": {
    "message": "モデル 'xxx' が見つかりません",
    "type": "invalid_request_error",
    "param": null,
    "code": null
  }
}

{
  "error": {
    "message": "すべてのプロバイダーが失敗しました",
    "type": "invalid_request_error",
    "param": null,
    "code": null
  }
}