Anthropic Messages

curl https://api.deerapi.com/v1/messages \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $DEERAPI_KEY" \
  -d '{
    "max_tokens": 1024,
    "system": "You are a concise technical assistant.",
    "messages": [
      {
        "content": "Summarize the benefits of retry logic for production API clients.",
        "role": "user"
      }
    ],
    "model": "claude-sonnet-4-6"
  }'

import os
import requests

url = "https://api.deerapi.com/v1/messages"
headers = {
    "Authorization": "Bearer " + os.environ["DEERAPI_KEY"],
    "Content-Type": "application/json",
}
payload = {
  "max_tokens": 1024,
  "system": "You are a concise technical assistant.",
  "messages": [
    {
      "content": "Summarize the benefits of retry logic for production API clients.",
      "role": "user"
    }
  ],
  "model": "claude-sonnet-4-6"
}

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

const response = await fetch("https://api.deerapi.com/v1/messages", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.DEERAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "max_tokens": 1024,
    "system": "You are a concise technical assistant.",
    "messages": [
      {
        "content": "Summarize the benefits of retry logic for production API clients.",
        "role": "user"
      }
    ],
    "model": "claude-sonnet-4-6"
  }),
});

console.log(await response.json());

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.deerapi.com/v1/messages",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'max_tokens' => 1024,
    'messages' => [
        [
                'content' => 'Summarize the benefits of retry logic for production API clients.',
                'role' => 'user'
        ]
    ],
    'model' => 'claude-sonnet-4-6'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.deerapi.com/v1/messages"

	payload := strings.NewReader("{\n  \"max_tokens\": 1024,\n  \"messages\": [\n    {\n      \"content\": \"Summarize the benefits of retry logic for production API clients.\",\n      \"role\": \"user\"\n    }\n  ],\n  \"model\": \"claude-sonnet-4-6\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.deerapi.com/v1/messages")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"max_tokens\": 1024,\n  \"messages\": [\n    {\n      \"content\": \"Summarize the benefits of retry logic for production API clients.\",\n      \"role\": \"user\"\n    }\n  ],\n  \"model\": \"claude-sonnet-4-6\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.deerapi.com/v1/messages")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"max_tokens\": 1024,\n  \"messages\": [\n    {\n      \"content\": \"Summarize the benefits of retry logic for production API clients.\",\n      \"role\": \"user\"\n    }\n  ],\n  \"model\": \"claude-sonnet-4-6\"\n}"

response = http.request(request)
puts response.read_body

{
  "id": "<string>",
  "type": "message",
  "role": "assistant",
  "model": "<string>",
  "content": [
    {
      "type": "text",
      "text": "<string>",
      "thinking": "<string>",
      "signature": "<string>",
      "id": "<string>",
      "name": "<string>",
      "input": {},
      "citations": [
        {}
      ]
    }
  ],
  "stop_reason": "end_turn",
  "usage": {
    "input_tokens": 123,
    "output_tokens": 123,
    "cache_creation_input_tokens": 123,
    "cache_read_input_tokens": 123,
    "cache_creation": {
      "ephemeral_5m_input_tokens": 123,
      "ephemeral_1h_input_tokens": 123
    },
    "inference_geo": "<string>",
    "server_tool_use": {
      "web_search_requests": 123,
      "web_fetch_requests": 123
    },
    "service_tier": "<string>"
  },
  "container": {
    "id": "<string>",
    "expires_at": "<string>"
  },
  "stop_sequence": "<string>"
}