Azure openai Error: 401"Unauthorized. Access token is missing, invalid, audience is incorrect (https://cognitiveservices.azure.com), or have expired."

Question

Hi all,

In my simple python code below, it happens run time error like below,

Error: 401 { "statusCode": 401, "message": "Unauthorized. Access token is missing,

invalid, audience is incorrect (https://cognitiveservices.azure.com), or have expired." }

import requests

# Azure OpenAI Configuration
API_KEY = "xxxxxx"  # API key generated in Azure OpenAI
ENDPOINT = "https://xxxxx.openai.azure.com/openai/deployments/gpt-4o/chat/completions?api-version=2024-02-15-preview" #Endpoint is copied from openAI

payload = {
    "messages": [
        {"role": "system", "content": "You are a helpful assistant."},
        {"role": "user", "content": "Tell me a joke."}
    ],
    "temperature": 0.7,
    "max_tokens": 100
}

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

# API call
response = requests.post(ENDPOINT, headers=headers, json=payload)

# print result
if response.status_code == 200:
    print("Response:", response.json())
else:
    print("Error:", response.status_code, response.text)

API key & End Point is copied from Azure OpenAI resource below,

and both key info

and the following model is created in SwedenCentral as Azure AI services,

and exists like below

I used copy/paste the each key and other necessary values, so it will be no problem.

Or my free trial subscription is the problem? Upgrade is needed?

Thanks!

Answer 1

Hello @nam seungwoo ,

Looks like you're trying to response from a chat completion 4o model. When calling a chat completion you can use:

1. API Key Authentication: You include the API key in the api-key HTTP header for each request.
2. Microsoft Entra ID Authentication: You use a Microsoft Entra token, included in the Authorization header as Bearer YOUR_AUTH_TOKEN.

In the code below you're combining the two. If you want to use the API key in your screenshot switch your header to "api-key":API_KEY. If you want to use Microsoft Entra ID Authentication you'll need to do some additional configuration.

Below is from a working chat.completions request:

import os 
import requests
import base64 
# Configuration 
API_KEY = "YOUR_API_KEY" 
IMAGE_PATH = "YOUR_IMAGE_PATH" 
encoded_image = base64.b64encode(open(IMAGE_PATH, 'rb').read()).decode('ascii')


headers = { "Content-Type": "application/json", "api-key": API_KEY, } 

# Payload for the request 
payload = { "messages": [ { "role": "system", "content": [ { "type": "text", "text": "You are an AI assistant that helps people find information." } ] } ], "temperature": 0.7, "top_p": 0.95, "max_tokens": 800 } 
ENDPOINT = "https://aiestimator.openai.azure.com/openai/deployments/AIEstimator/chat/completions?api-version=2024-02-15-preview" 
# Send request 
try: response = requests.post(ENDPOINT, headers=headers, json=payload) 

***To ensure the security of your applications and data, never share your API keys with anyone.

Answer 2

@nam seungwoo Welcome to Microsoft Q&A Forum, Thank you for posting your query here!

.

The issue is in the below line of your code:

"Authorization": f"Bearer {API_KEY}"

Please replace the above line with my below code:

"api-key": API_KEY

.

This should resolve your issue. If you have any follow-up questions, please let me know. I would be happy to help.

**

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