claude-4.5-haiku

最后更新：2026-11-14

POSThttps://www.sagelib.com/chat/completions

claude-4.5-haiku 模型的聊天生成接口，OpenAI兼容，支持多轮上下文、流式输出、工具调用、结构化输出等。

接口鉴权方式请参考：API接入与鉴权

请求参数

请求头

参数名称 描述
*Authorization string 鉴权令牌，格式为 Bearer ${AIGATEWAY_TOKEN}
*Content-Type string 默认值：application/json
可选值：application/json
内容类型，固定为 application/json

Body 参数

参数名称 描述
*model string 可选值：claude-4.5-haiku
模型名称，固定值
*messages array 可选值：Array of objects
对话消息列表，每个消息含 role 与 content
stream boolean 默认值：false
可选值：true、false
是否启用流式输出（SSE）
max_tokens integer 最大输出 token 数
temperature number 可选值：0 ~ 2
采样温度，控制输出随机性
top_p number 可选值：0 ~ 1
核采样参数
stop string 停止词，遇到则停止生成
tools array 可选值：Array of tool definitions
工具定义列表，每个工具含 type 与 function
tool_choice string 可选值：auto、none、required
工具选择策略

请求示例

curl -v 'https://www.sagelib.com/chat/completions' \
  -H "Authorization: Bearer ***" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-4.5-haiku",
    "messages": [
      {
        "role": "user",
        "content": "Hi, what is your model name?"
      }
    ]
  }'

import json
import requests

# Configure base variables
base_url = "https://www.sagelib.com"  # 把 base_url 换成你的网关地址 https://www.sagelib.com
api_key = "***"  # Replace with your Bearer token

url = f"https://www.sagelib.com/chat/completions"

headers = {
    "Authorization": f"Bearer {api_key}",
    "Content-Type": "application/json",
}

data = {
    "model": "claude-4.5-haiku",
    "messages": [
        {
            "role": "user",
            "content": "Hi, what is your model name?"
        }
    ]
}

# Send the POST request
response = requests.post(url, headers=headers, json=data)

# Print the status code and the returned JSON data
print(f"Status Code: {response.status_code}")
try:
    print(json.dumps(response.json(), indent=2, ensure_ascii=False))
except Exception:
    print(response.text)

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class LlmStreamClient {
    public static void main(String[] args) {
        String baseUrl = "https://www.sagelib.com";
        String apiKey = "***";
        String url = "https://www.sagelib.com/chat/completions";

        String jsonRequestBody = """
            {
                "model": "claude-4.5-haiku",
                "messages": [
                    {
                        "role": "user",
                        "content": "Hi, what is your model name?"
                    }
                ]
            }
            """;

        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(jsonRequestBody))
                .build();

        try {
            // Use ofInputStream to handle the streaming response
            HttpResponse<java.io.InputStream> response = client.send(request, HttpResponse.BodyHandlers.ofInputStream());

            try (BufferedReader reader = new BufferedReader(new InputStreamReader(response.body()))) {
                String line;
                while ((line = reader.readLine()) != null) {
                    line = line.trim();
                    if (line.startsWith("data:")) {
                        String data = line.substring(5).trim();
                        if ("[DONE]".equals(data)) {
                            break;
                        }
                        // Tip: you can bring in Gson or Jackson here to parse the JSON in data and extract delta.content
                        System.out.println("Received stream chunk: " + data);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package main

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

func main() {
    baseUrl := "https://www.sagelib.com"
    apiKey := "***"
    url := "https://www.sagelib.com/chat/completions"

    jsonRequestBody := `
            {
                "model": "claude-4.5-haiku",
                "messages": [
                    {
                        "role": "user",
                        "content": "Hi, what is your model name?"
                    }
                ]
            }
`

    req, err := http.NewRequest("POST", url, bytes.NewBufferString(jsonRequestBody))
    if err != nil {
        fmt.Println("Failed to create request:", err)
        return
    }
    req.Header.Set("Authorization", "Bearer "+apiKey)
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        fmt.Println("Request failed:", err)
        return
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    // Pretty-print the returned JSON data
    var prettyBody map[string]interface{}
    if err := json.Unmarshal(body, &prettyBody); err == nil {
        pretty, _ := json.MarshalIndent(prettyBody, "", "  ")
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(pretty))
    } else {
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(body))
    }
}

curl -v 'https://www.sagelib.com/chat/completions' \
  -H "Authorization: Bearer ***" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-4.5-haiku",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ],
    "stream": true
  }'

import json
import requests

base_url = "URL"
api_key = "***"
url = f"https://{base_url}/chat/completions"
headers = {"Authorization": f"Bearer {api_key}", "Content-Type": "application/json"}
data = {
    "model": "claude-4.5-haiku",
    "messages": [
        {
            "role": "user",
            "content": "Hello!"
        }
    ],
    "stream": True
}
response = requests.post(url, headers=headers, json=data)
print(f"Status Code: {response.status_code}")
try:
    print(json.dumps(response.json(), indent=2, ensure_ascii=False))
except Exception:
    print(response.text)

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class LlmStreamClient {
    public static void main(String[] args) {
        String baseUrl = "https://www.sagelib.com";
        String apiKey = "***";
        String url = "https://www.sagelib.com/chat/completions";

        String jsonRequestBody = """
            {
                "model": "claude-4.5-haiku",
                "messages": [
                    {
                        "role": "user",
                        "content": "Hello!"
                    }
                ],
                "stream": true
            }
            """;

        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(jsonRequestBody))
                .build();

        try {
            // Use ofInputStream to handle the streaming response
            HttpResponse<java.io.InputStream> response = client.send(request, HttpResponse.BodyHandlers.ofInputStream());

            try (BufferedReader reader = new BufferedReader(new InputStreamReader(response.body()))) {
                String line;
                while ((line = reader.readLine()) != null) {
                    line = line.trim();
                    if (line.startsWith("data:")) {
                        String data = line.substring(5).trim();
                        if ("[DONE]".equals(data)) {
                            break;
                        }
                        // Tip: you can bring in Gson or Jackson here to parse the JSON in data and extract delta.content
                        System.out.println("Received stream chunk: " + data);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package main

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

func main() {
    baseUrl := "https://www.sagelib.com"
    apiKey := "***"
    url := "https://www.sagelib.com/chat/completions"

    jsonRequestBody := `
            {
                "model": "claude-4.5-haiku",
                "messages": [
                    {
                        "role": "user",
                        "content": "Hello!"
                    }
                ],
                "stream": true
            }
`

    req, err := http.NewRequest("POST", url, bytes.NewBufferString(jsonRequestBody))
    if err != nil {
        fmt.Println("Failed to create request:", err)
        return
    }
    req.Header.Set("Authorization", "Bearer "+apiKey)
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        fmt.Println("Request failed:", err)
        return
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    // Pretty-print the returned JSON data
    var prettyBody map[string]interface{}
    if err := json.Unmarshal(body, &prettyBody); err == nil {
        pretty, _ := json.MarshalIndent(prettyBody, "", "  ")
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(pretty))
    } else {
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(body))
    }
}

curl -v 'https://www.sagelib.com/chat/completions' \
  -H "Authorization: Bearer ***" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-4.5-haiku",
    "messages": [
      {
        "role": "user",
        "content": [
          {
            "type": "text",
            "text": "What is in the image?"
          },
          {
            "type": "image_url",
            "image_url": {
              "url": "data:image/png;base64,..."
            }
          }
        ]
      }
    ],
    "stream": true
  }'

import json
import requests

# Configure base variables
base_url = "https://www.sagelib.com"  # 把 base_url 换成你的网关地址 https://www.sagelib.com
api_key = "***"  # Replace with your Bearer token

url = f"https://www.sagelib.com/chat/completions"

headers = {
    "Authorization": f"Bearer {api_key}",
    "Content-Type": "application/json",
}

data = {
    "model": "claude-4.5-haiku",
    "messages": [
        {
            "role": "user",
            "content": [
                {
                    "type": "text",
                    "text": "What is in the image?"
                },
                {
                    "type": "image_url",
                    "image_url": {
                        "url": "data:image/png;base64,..."
                    }
                }
            ]
        }
    ],
    "stream": True
}

# Send the POST request
response = requests.post(url, headers=headers, json=data)

# Print the status code and the returned JSON data
print(f"Status Code: {response.status_code}")
try:
    print(json.dumps(response.json(), indent=2, ensure_ascii=False))
except Exception:
    print(response.text)

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class LlmStreamClient {
    public static void main(String[] args) {
        String baseUrl = "https://www.sagelib.com";
        String apiKey = "***";
        String url = "https://www.sagelib.com/chat/completions";

        String jsonRequestBody = """
            {
                "model": "claude-4.5-haiku",
                "messages": [
                    {
                        "role": "user",
                        "content": [
                            {
                                "type": "text",
                                "text": "What is in the image?"
                            },
                            {
                                "type": "image_url",
                                "image_url": {
                                    "url": "data:image/png;base64,..."
                                }
                            }
                        ]
                    }
                ],
                "stream": true
            }
            """;

        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(jsonRequestBody))
                .build();

        try {
            // Use ofInputStream to handle the streaming response
            HttpResponse<java.io.InputStream> response = client.send(request, HttpResponse.BodyHandlers.ofInputStream());

            try (BufferedReader reader = new BufferedReader(new InputStreamReader(response.body()))) {
                String line;
                while ((line = reader.readLine()) != null) {
                    line = line.trim();
                    if (line.startsWith("data:")) {
                        String data = line.substring(5).trim();
                        if ("[DONE]".equals(data)) {
                            break;
                        }
                        // Tip: you can bring in Gson or Jackson here to parse the JSON in data and extract delta.content
                        System.out.println("Received stream chunk: " + data);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package main

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

func main() {
    baseUrl := "https://www.sagelib.com"
    apiKey := "***"
    url := "https://www.sagelib.com/chat/completions"

    jsonRequestBody := `
            {
                "model": "claude-4.5-haiku",
                "messages": [
                    {
                        "role": "user",
                        "content": [
                            {
                                "type": "text",
                                "text": "What is in the image?"
                            },
                            {
                                "type": "image_url",
                                "image_url": {
                                    "url": "data:image/png;base64,..."
                                }
                            }
                        ]
                    }
                ],
                "stream": true
            }
`

    req, err := http.NewRequest("POST", url, bytes.NewBufferString(jsonRequestBody))
    if err != nil {
        fmt.Println("Failed to create request:", err)
        return
    }
    req.Header.Set("Authorization", "Bearer "+apiKey)
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        fmt.Println("Request failed:", err)
        return
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    // Pretty-print the returned JSON data
    var prettyBody map[string]interface{}
    if err := json.Unmarshal(body, &prettyBody); err == nil {
        pretty, _ := json.MarshalIndent(prettyBody, "", "  ")
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(pretty))
    } else {
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(body))
    }
}

响应参数

Body 参数

参数名称 描述
id string 响应唯一标识，如 chatcmpl-xxx
object string 固定为 chat.completion
model string 实际使用的模型名称
created integer 创建时间戳（Unix秒）
choices array 生成结果数组
usage object
    prompt_tokens integer 输入 token 数
    completion_tokens integer 输出 token 数
    total_tokens integer 总 token 数
POSThttps://www.sagelib.com/anthropic/v1/messages

claude-4.5-haiku 模型的聊天生成接口，Anthropic直连，支持多轮上下文、流式输出、工具调用、结构化输出等。

接口鉴权方式请参考：API接入与鉴权

请求参数

请求头

参数名称 描述
*Content-Type string 可选值：application/json
application/json
*anthropic-version string 可选值：2023-06-01
Anthropic API 版本号，固定为 2023-06-01
*X-Api-Key string 鉴权令牌，格式为 ${AIGATEWAY_TOKEN}

Body 参数

参数名称 描述
*model string 可选值："claude-4.5-haiku"
模型名称，须精确匹配
*messages array 可选值：content
对话消息列表，首条须为 user 角色，content 可为字符串或内容块数组
*max_tokens integer 可选值：1 ~ 64000
最大输出 token 数，上限取决于模型
system string 可选值：String or content block array
系统提示词，Anthropic 顶层参数（非 messages 数组内），数组形式可附加 cache_control
temperature float 默认值：1
可选值：0.0 ~ 1.0
随机性控制，默认 1.0
top_p float 可选值：0.0 ~ 1.0
核采样概率阈值
top_k integer 可选值：Positive integer
Top-K 采样
stop_sequences array 可选值：String array
自定义停止序列，遇到即停止输出
stream boolean 默认值：false
可选值：true、false
是否启用 SSE 流式输出
tools array 可选值：description
工具定义列表
tool_choice object 可选值：auto、any、tool、none
工具选择策略
thinking object 可选值：disabled
扩展思考配置，enabled 需 budget_tokens >= 1024
metadata object 可选值：Contains user_id sub-field
请求元数据，user_id 禁止含 PII

请求示例

curl -v 'https://www.sagelib.com/anthropic/messages' \
  -H "x-api-key: ***" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-4.5-haiku",
    "max_tokens": 2048,
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'

import json
import requests

# Configure base variables
base_url = "https://www.sagelib.com"  # 把 base_url 换成你的网关地址 https://www.sagelib.com
api_key = "***"  # Replace with your API key

url = f"https://www.sagelib.com/anthropic/messages"

headers = {
    "x-api-key": api_key,
    "anthropic-version": "2023-06-01",
    "Content-Type": "application/json",
}

data = {
    "model": "claude-4.5-haiku",
    "max_tokens": 2048,
    "messages": [
        {
            "role": "user",
            "content": "Hello"
        }
    ]
}

# Send the POST request
response = requests.post(url, headers=headers, json=data)

# Print the status code and the returned JSON data
print(f"Status Code: {response.status_code}")
try:
    print(json.dumps(response.json(), indent=2, ensure_ascii=False))
except Exception:
    print(response.text)

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class LlmStreamClient {
    public static void main(String[] args) {
        String baseUrl = "https://www.sagelib.com";
        String apiKey = "***";
        String url = "https://www.sagelib.com/anthropic/messages";

        String jsonRequestBody = """
            {
                "model": "claude-4.5-haiku",
                "max_tokens": 2048,
                "messages": [
                    {
                        "role": "user",
                        "content": "Hello"
                    }
                ]
            }
            """;

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create(url))
                .header("x-api-key", apiKey).header("anthropic-version", "2023-06-01")
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(jsonRequestBody))
                .build();

        try {
            // Use ofInputStream to handle the streaming response
            HttpResponse<java.io.InputStream> response = client.send(request, HttpResponse.BodyHandlers.ofInputStream());

            try (BufferedReader reader = new BufferedReader(new InputStreamReader(response.body()))) {
                String line;
                while ((line = reader.readLine()) != null) {
                    line = line.trim();
                    if (line.startsWith("data:")) {
                        String data = line.substring(5).trim();
                        if ("[DONE]".equals(data)) {
                            break;
                        }
                        // Tip: you can bring in Gson or Jackson here to parse the JSON in data and extract delta.content
                        System.out.println("Received stream chunk: " + data);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package main

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

func main() {
    baseUrl := "https://www.sagelib.com"
    apiKey := "***"
    url := "https://www.sagelib.com/anthropic/messages"

    jsonRequestBody := `
            {
                "model": "claude-4.5-haiku",
                "max_tokens": 2048,
                "messages": [
                    {
                        "role": "user",
                        "content": "Hello"
                    }
                ]
            }
`

    req, err := http.NewRequest("POST", url, bytes.NewBufferString(jsonRequestBody))
    if err != nil {
        fmt.Println("Failed to create request:", err)
        return
    }
    req.Header.Set("x-api-key", apiKey)
    req.Header.Set("anthropic-version", "2023-06-01")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        fmt.Println("Request failed:", err)
        return
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    // Pretty-print the returned JSON data
    var prettyBody map[string]interface{}
    if err := json.Unmarshal(body, &prettyBody); err == nil {
        pretty, _ := json.MarshalIndent(prettyBody, "", "  ")
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(pretty))
    } else {
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(body))
    }
}

curl -v 'https://www.sagelib.com/anthropic/messages' \
  -H "x-api-key: ***" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-4.5-haiku",
    "max_tokens": 2048,
    "tools": [
      {
        "name": "get_weather",
        "description": "Query the weather of a specified city",
        "input_schema": {
          "type": "object",
          "properties": {
            "city": {
              "type": "string"
            }
          },
          "required": [
            "city"
          ]
        }
      }
    ],
    "messages": [
      {
        "role": "user",
        "content": "How is the weather in Beijing today?"
      }
    ]
  }'

import json
import requests

# Configure base variables
base_url = "https://www.sagelib.com"  # 把 base_url 换成你的网关地址 https://www.sagelib.com
api_key = "***"  # Replace with your API key

url = f"https://www.sagelib.com/anthropic/messages"

headers = {
    "x-api-key": api_key,
    "anthropic-version": "2023-06-01",
    "Content-Type": "application/json",
}

data = {
    "model": "claude-4.5-haiku",
    "max_tokens": 2048,
    "tools": [
        {
            "name": "get_weather",
            "description": "Query the weather of a specified city",
            "input_schema": {
                "type": "object",
                "properties": {
                    "city": {
                        "type": "string"
                    }
                },
                "required": [
                    "city"
                ]
            }
        }
    ],
    "messages": [
        {
            "role": "user",
            "content": "How is the weather in Beijing today?"
        }
    ]
}

# Send the POST request
response = requests.post(url, headers=headers, json=data)

# Print the status code and the returned JSON data
print(f"Status Code: {response.status_code}")
try:
    print(json.dumps(response.json(), indent=2, ensure_ascii=False))
except Exception:
    print(response.text)

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class LlmStreamClient {
    public static void main(String[] args) {
        String baseUrl = "https://www.sagelib.com";
        String apiKey = "***";
        String url = "https://www.sagelib.com/anthropic/messages";

        String jsonRequestBody = """
            {
                "model": "claude-4.5-haiku",
                "max_tokens": 2048,
                "tools": [
                    {
                        "name": "get_weather",
                        "description": "Query the weather of a specified city",
                        "input_schema": {
                            "type": "object",
                            "properties": {
                                "city": {
                                    "type": "string"
                                }
                            },
                            "required": [
                                "city"
                            ]
                        }
                    }
                ],
                "messages": [
                    {
                        "role": "user",
                        "content": "How is the weather in Beijing today?"
                    }
                ]
            }
            """;

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create(url))
                .header("x-api-key", apiKey).header("anthropic-version", "2023-06-01")
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(jsonRequestBody))
                .build();

        try {
            // Use ofInputStream to handle the streaming response
            HttpResponse<java.io.InputStream> response = client.send(request, HttpResponse.BodyHandlers.ofInputStream());

            try (BufferedReader reader = new BufferedReader(new InputStreamReader(response.body()))) {
                String line;
                while ((line = reader.readLine()) != null) {
                    line = line.trim();
                    if (line.startsWith("data:")) {
                        String data = line.substring(5).trim();
                        if ("[DONE]".equals(data)) {
                            break;
                        }
                        // Tip: you can bring in Gson or Jackson here to parse the JSON in data and extract delta.content
                        System.out.println("Received stream chunk: " + data);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package main

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

func main() {
    baseUrl := "https://www.sagelib.com"
    apiKey := "***"
    url := "https://www.sagelib.com/anthropic/messages"

    jsonRequestBody := `
            {
                "model": "claude-4.5-haiku",
                "max_tokens": 2048,
                "tools": [
                    {
                        "name": "get_weather",
                        "description": "Query the weather of a specified city",
                        "input_schema": {
                            "type": "object",
                            "properties": {
                                "city": {
                                    "type": "string"
                                }
                            },
                            "required": [
                                "city"
                            ]
                        }
                    }
                ],
                "messages": [
                    {
                        "role": "user",
                        "content": "How is the weather in Beijing today?"
                    }
                ]
            }
`

    req, err := http.NewRequest("POST", url, bytes.NewBufferString(jsonRequestBody))
    if err != nil {
        fmt.Println("Failed to create request:", err)
        return
    }
    req.Header.Set("x-api-key", apiKey)
    req.Header.Set("anthropic-version", "2023-06-01")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        fmt.Println("Request failed:", err)
        return
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    // Pretty-print the returned JSON data
    var prettyBody map[string]interface{}
    if err := json.Unmarshal(body, &prettyBody); err == nil {
        pretty, _ := json.MarshalIndent(prettyBody, "", "  ")
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(pretty))
    } else {
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(body))
    }
}

curl -v 'https://www.sagelib.com/anthropic/messages' \
  -H "x-api-key: ***" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-4.5-haiku",
    "max_tokens": 4096,
    "system": "You are a rigorous Chinese translation assistant",
    "thinking": {
      "type": "enabled",
      "budget_tokens": 2048
    },
    "messages": [
      {
        "role": "user",
        "content": "Translate the following into English: Artificial intelligence is changing the world."
      }
    ]
  }'

import json
import requests

# Configure base variables
base_url = "https://www.sagelib.com"  # 把 base_url 换成你的网关地址 https://www.sagelib.com
api_key = "***"  # Replace with your API key

url = f"https://www.sagelib.com/anthropic/messages"

headers = {
    "x-api-key": api_key,
    "anthropic-version": "2023-06-01",
    "Content-Type": "application/json",
}

data = {
    "model": "claude-4.5-haiku",
    "max_tokens": 4096,
    "system": "You are a rigorous Chinese translation assistant",
    "thinking": {
        "type": "enabled",
        "budget_tokens": 2048
    },
    "messages": [
        {
            "role": "user",
            "content": "Translate the following into English: Artificial intelligence is changing the world."
        }
    ]
}

# Send the POST request
response = requests.post(url, headers=headers, json=data)

# Print the status code and the returned JSON data
print(f"Status Code: {response.status_code}")
try:
    print(json.dumps(response.json(), indent=2, ensure_ascii=False))
except Exception:
    print(response.text)

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class LlmStreamClient {
    public static void main(String[] args) {
        String baseUrl = "https://www.sagelib.com";
        String apiKey = "***";
        String url = "https://www.sagelib.com/anthropic/messages";

        String jsonRequestBody = """
            {
                "model": "claude-4.5-haiku",
                "max_tokens": 4096,
                "system": "You are a rigorous Chinese translation assistant",
                "thinking": {
                    "type": "enabled",
                    "budget_tokens": 2048
                },
                "messages": [
                    {
                        "role": "user",
                        "content": "Translate the following into English: Artificial intelligence is changing the world."
                    }
                ]
            }
            """;

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create(url))
                .header("x-api-key", apiKey).header("anthropic-version", "2023-06-01")
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(jsonRequestBody))
                .build();

        try {
            // Use ofInputStream to handle the streaming response
            HttpResponse<java.io.InputStream> response = client.send(request, HttpResponse.BodyHandlers.ofInputStream());

            try (BufferedReader reader = new BufferedReader(new InputStreamReader(response.body()))) {
                String line;
                while ((line = reader.readLine()) != null) {
                    line = line.trim();
                    if (line.startsWith("data:")) {
                        String data = line.substring(5).trim();
                        if ("[DONE]".equals(data)) {
                            break;
                        }
                        // Tip: you can bring in Gson or Jackson here to parse the JSON in data and extract delta.content
                        System.out.println("Received stream chunk: " + data);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package main

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

func main() {
    baseUrl := "https://www.sagelib.com"
    apiKey := "***"
    url := "https://www.sagelib.com/anthropic/messages"

    jsonRequestBody := `
            {
                "model": "claude-4.5-haiku",
                "max_tokens": 4096,
                "system": "You are a rigorous Chinese translation assistant",
                "thinking": {
                    "type": "enabled",
                    "budget_tokens": 2048
                },
                "messages": [
                    {
                        "role": "user",
                        "content": "Translate the following into English: Artificial intelligence is changing the world."
                    }
                ]
            }
`

    req, err := http.NewRequest("POST", url, bytes.NewBufferString(jsonRequestBody))
    if err != nil {
        fmt.Println("Failed to create request:", err)
        return
    }
    req.Header.Set("x-api-key", apiKey)
    req.Header.Set("anthropic-version", "2023-06-01")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        fmt.Println("Request failed:", err)
        return
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    // Pretty-print the returned JSON data
    var prettyBody map[string]interface{}
    if err := json.Unmarshal(body, &prettyBody); err == nil {
        pretty, _ := json.MarshalIndent(prettyBody, "", "  ")
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(pretty))
    } else {
        fmt.Println("Status Code:", resp.StatusCode)
        fmt.Println(string(body))
    }
}

响应参数

Body 参数

参数名称 描述
id string 响应唯一标识，如 msg_${message_id}
type string 固定为 message
role string 固定为 assistant
model string 实际使用的模型名称
content array 内容块数组
stop_reason string 停止原因：end_turn / max_tokens / stop_sequence / tool_use
stop_sequence string 匹配的停止序列（stop_reason=stop_sequence 时）
usage object
    input_tokens integer 输入 token 数
    output_tokens integer 输出 token 数（含推理 token）
    cache_creation_input_tokens integer 缓存写入 token 数
    cache_read_input_tokens integer 缓存命中 token 数