Alibaba Cloud Model Studio:Anthropic compatible - Messages

macOS

1. In the terminal, run the following command to check your default shell type.

   echo $SHELL

2. Set the environment variables based on your shell type. The commands are as follows:

   Zsh

   # Replace YOUR_DASHSCOPE_API_KEY with your Model Studio API key.
   echo 'export ANTHROPIC_BASE_URL="https://dashscope-intl.aliyuncs.com/apps/anthropic"' >> ~/.zshrc
   echo 'export ANTHROPIC_API_KEY="YOUR_DASHSCOPE_API_KEY"' >> ~/.zshrc

   Bash

   # Replace YOUR_DASHSCOPE_API_KEY with your Model Studio API key.
   echo 'export ANTHROPIC_BASE_URL="https://dashscope-intl.aliyuncs.com/apps/anthropic"' >> ~/.bash_profile
   echo 'export ANTHROPIC_API_KEY="YOUR_DASHSCOPE_API_KEY"' >> ~/.bash_profile

3. In the terminal, run the following command to apply the environment variables.

   Zsh

   source ~/.zshrc

   Bash

   source ~/.bash_profile

4. Open a new terminal and run the following commands to verify that the environment variables are in effect.

   echo $ANTHROPIC_BASE_URL
   echo $ANTHROPIC_API_KEY

Windows

1. On Windows, you can use either CMD or PowerShell to set the base URL and API key provided by Model Studio as environment variables.

   CMD

   1. In CMD, run the following commands to set the environment variables.

   2. Open a new CMD window and run the following commands to verify that the environment variables are in effect.

      echo %ANTHROPIC_API_KEY%
      echo %ANTHROPIC_BASE_URL%

   PowerShell

   1. In PowerShell, run the following commands to set the environment variables.

      # Replace YOUR_DASHSCOPE_API_KEY with your Model Studio API key.
      [Environment]::SetEnvironmentVariable("ANTHROPIC_API_KEY", "YOUR_DASHSCOPE_API_KEY", [EnvironmentVariableTarget]::User)
      [Environment]::SetEnvironmentVariable("ANTHROPIC_BASE_URL", "https://dashscope-intl.aliyuncs.com/apps/anthropic", [EnvironmentVariableTarget]::User)

   2. Open a new PowerShell window and run the following commands to verify that the environment variables are in effect.

      echo $env:ANTHROPIC_API_KEY
      echo $env:ANTHROPIC_BASE_URL

cURL

curl -X POST "https://dashscope-intl.aliyuncs.com/apps/anthropic/v1/messages" \
  -H "Content-Type: application/json" \
  -H "x-api-key: $ANTHROPIC_API_KEY" \
  -d '{
    "model": "qwen-plus",
    "max_tokens": 1024,
    "stream": true,
    "thinking": {
      "type": "enabled",
      "budget_tokens": 1024
    },
    "system": "You are a helpful assistant",
    "messages": [
        {
            "role": "user",
            "content": [
                {
                    "type": "text",
                    "text": "Who are you?"
                }
            ]
        }
    ]
}'

Python

1. Install the Anthropic SDK

   pip install anthropic

2. Code example

   import anthropic
   import os
   
   client = anthropic.Anthropic(
       api_key=os.getenv("ANTHROPIC_API_KEY"),
       base_url=os.getenv("ANTHROPIC_BASE_URL"),
   )
   
   message = client.messages.create(
       model="qwen-plus",
       max_tokens=1024,
       stream=True,
       system="you are a helpful assistant",
       # The thinking parameter is not supported by Qwen-Max and Qwen-Coder series models.
       thinking={
           "type": "enabled",
           "budget_tokens": 1024
       },
       messages=[
           {
               "role": "user",
               "content": [
                   {
                       "type": "text",
                       "text": "Who are you?"
                   }
               ]
           }
       ]
   )
   
   print("=== Thinking process ===")
   first_text = True
   for chunk in message:
       if chunk.type == "content_block_delta":
           if hasattr(chunk.delta, 'thinking'):
               print(chunk.delta.thinking, end="", flush=True)
           elif hasattr(chunk.delta, 'text'):
               if first_text:
                   print("\n\n=== Response ===")
                   first_text = False
               print(chunk.delta.text, end="", flush=True)
   

TypeScript

1. Install the Anthropic TypeScript SDK

   npm install @anthropic-ai/sdk

2. Code example

   import Anthropic from "@anthropic-ai/sdk";
   
   async function main() {
     const anthropic = new Anthropic({
       apiKey: process.env.ANTHROPIC_API_KEY,
       baseURL: process.env.ANTHROPIC_BASE_URL,
     });
   
     const stream = await anthropic.messages.create({
       model: "qwen-plus",
       max_tokens: 1024,
       stream: true,
       // The thinking parameter is not supported by Qwen-Max and Qwen-Coder series models.
       thinking: { type: "enabled", budget_tokens: 1024 },
       system: "You are a helpful assistant",
       messages: [{ 
         role: "user", 
         content: [
           {
             type: "text",
             text: "Who are you?"
           }
         ]
       }]
     });
   
     console.log("=== Thinking process ===");
     let firstText = true;
   
     for await (const chunk of stream) {
       if (chunk.type === "content_block_delta") {
         if ('thinking' in chunk.delta) {
           process.stdout.write(chunk.delta.thinking);
         } else if ('text' in chunk.delta) {
           if (firstText) {
             console.log("\n\n=== Response ===");
             firstText = false;
           }
           process.stdout.write(chunk.delta.text);
         }
       }
     }
     console.log();
   }
   
   main().catch(console.error);