diff --git a/apps/site/docs/en/model-provider.md b/apps/site/docs/en/model-provider.md
index f37a69a9..764568c7 100644
--- a/apps/site/docs/en/model-provider.md
+++ b/apps/site/docs/en/model-provider.md
@@ -17,7 +17,7 @@ Optional configs:
 # if you want to use a customized endpoint
 export OPENAI_BASE_URL="https://..."
 
-# if you want to use Azure OpenAI Service
+# if you want to use Azure OpenAI Service. See more details in the next section.
 export OPENAI_USE_AZURE="true"
 
 # if you want to specify a model name other than gpt-4o
@@ -35,10 +35,24 @@ export OPENAI_MAX_TOKENS=2048
 
 ## Using Azure OpenAI Service
 
+Use ADT token provider
+
 ```bash
 export MIDSCENE_USE_AZURE_OPENAI=1
 export MIDSCENE_AZURE_OPENAI_SCOPE="https://cognitiveservices.azure.com/.default"
-export MIDSCENE_AZURE_OPENAI_INIT_CONFIG_JSON='{"apiVersion": "2024-11-01-preview", "endpoint": "...", "deployment": "..."}'
+export AZURE_OPENAI_ENDPOINT="..."
+export AZURE_OPENAI_API_VERSION="2024-05-01-preview"
+export AZURE_OPENAI_DEPLOYMENT="gpt-4o"
+```
+
+Or use keyless authentication
+
+```bash
+export MIDSCENE_USE_AZURE_OPENAI=1
+export AZURE_OPENAI_ENDPOINT="..."
+export AZURE_OPENAI_KEY="..."
+export AZURE_OPENAI_API_VERSION="2024-05-01-preview"
+export AZURE_OPENAI_DEPLOYMENT="gpt-4o"
 ```
 
 ## Choose a model other than `gpt-4o`
diff --git a/apps/site/docs/zh/model-provider.md b/apps/site/docs/zh/model-provider.md
index 38fed0e4..a3fe840d 100644
--- a/apps/site/docs/zh/model-provider.md
+++ b/apps/site/docs/zh/model-provider.md
@@ -32,10 +32,24 @@ export OPENAI_MAX_TOKENS=2048
 
 ## 使用 Azure OpenAI 服务时的配置
 
+使用 ADT token provider
+
 ```bash
 export MIDSCENE_USE_AZURE_OPENAI=1
 export MIDSCENE_AZURE_OPENAI_SCOPE="https://cognitiveservices.azure.com/.default"
-export MIDSCENE_AZURE_OPENAI_INIT_CONFIG_JSON='{"apiVersion": "2024-11-01-preview", "endpoint": "...", "deployment": "..."}'
+export AZURE_OPENAI_ENDPOINT="..."
+export AZURE_OPENAI_API_VERSION="2024-05-01-preview"
+export AZURE_OPENAI_DEPLOYMENT="gpt-4o"
+```
+
+使用 keyless 模式
+
+```bash
+export MIDSCENE_USE_AZURE_OPENAI=1
+export AZURE_OPENAI_ENDPOINT="..."
+export AZURE_OPENAI_KEY="..."
+export AZURE_OPENAI_API_VERSION="2024-05-01-preview"
+export AZURE_OPENAI_DEPLOYMENT="gpt-4o"
 ```
 
 ## 选用 `gpt-4o` 以外的其他模型
diff --git a/packages/midscene/src/ai-model/openai/index.ts b/packages/midscene/src/ai-model/openai/index.ts
index b17aa301..7a202fbf 100644
--- a/packages/midscene/src/ai-model/openai/index.ts
+++ b/packages/midscene/src/ai-model/openai/index.ts
@@ -12,6 +12,10 @@ import type { ChatCompletionMessageParam } from 'openai/resources';
 import { SocksProxyAgent } from 'socks-proxy-agent';
 import {
   ANTHROPIC_API_KEY,
+  AZURE_OPENAI_API_VERSION,
+  AZURE_OPENAI_DEPLOYMENT,
+  AZURE_OPENAI_ENDPOINT,
+  AZURE_OPENAI_KEY,
   MIDSCENE_AZURE_OPENAI_INIT_CONFIG_JSON,
   MIDSCENE_AZURE_OPENAI_SCOPE,
   MIDSCENE_DANGEROUSLY_PRINT_ALL_CONFIG,
@@ -75,26 +79,43 @@ async function createChatClient(): Promise<{
       dangerouslyAllowBrowser: true,
     }) as OpenAI;
   } else if (getAIConfig(MIDSCENE_USE_AZURE_OPENAI)) {
-    // sample code: https://github.com/Azure/azure-sdk-for-js/blob/main/sdk/openai/openai/samples/cookbook/simpleCompletionsPage/app.js
-    const scope = getAIConfig(MIDSCENE_AZURE_OPENAI_SCOPE);
-
-    assert(
-      !ifInBrowser,
-      'Azure OpenAI is not supported in browser with Midscene.',
-    );
-    const credential = new DefaultAzureCredential();
-
-    assert(scope, 'MIDSCENE_AZURE_OPENAI_SCOPE is required');
-    const tokenProvider = getBearerTokenProvider(credential, scope);
-
     const extraAzureConfig = getAIConfigInJson(
       MIDSCENE_AZURE_OPENAI_INIT_CONFIG_JSON,
     );
-    openai = new AzureOpenAI({
-      azureADTokenProvider: tokenProvider,
-      ...extraConfig,
-      ...extraAzureConfig,
-    });
+
+    // https://learn.microsoft.com/en-us/azure/ai-services/openai/chatgpt-quickstart?tabs=bash%2Cjavascript-key%2Ctypescript-keyless%2Cpython&pivots=programming-language-javascript#rest-api
+    // keyless authentication
+    const scope = getAIConfig(MIDSCENE_AZURE_OPENAI_SCOPE);
+    let tokenProvider: any = undefined;
+    if (scope) {
+      assert(
+        !ifInBrowser,
+        'Azure OpenAI is not supported in browser with Midscene.',
+      );
+      const credential = new DefaultAzureCredential();
+
+      assert(scope, 'MIDSCENE_AZURE_OPENAI_SCOPE is required');
+      tokenProvider = getBearerTokenProvider(credential, scope);
+
+      openai = new AzureOpenAI({
+        azureADTokenProvider: tokenProvider,
+        endpoint: getAIConfig(AZURE_OPENAI_ENDPOINT),
+        apiVersion: getAIConfig(AZURE_OPENAI_API_VERSION),
+        deployment: getAIConfig(AZURE_OPENAI_DEPLOYMENT),
+        ...extraConfig,
+        ...extraAzureConfig,
+      });
+    } else {
+      // endpoint, apiKey, apiVersion, deployment
+      openai = new AzureOpenAI({
+        apiKey: getAIConfig(AZURE_OPENAI_KEY),
+        endpoint: getAIConfig(AZURE_OPENAI_ENDPOINT),
+        apiVersion: getAIConfig(AZURE_OPENAI_API_VERSION),
+        deployment: getAIConfig(AZURE_OPENAI_DEPLOYMENT),
+        ...extraConfig,
+        ...extraAzureConfig,
+      });
+    }
   } else if (!getAIConfig(MIDSCENE_USE_ANTHROPIC_SDK)) {
     openai = new OpenAI({
       baseURL: getAIConfig(OPENAI_BASE_URL),
diff --git a/packages/midscene/src/env.ts b/packages/midscene/src/env.ts
index a35e796c..0b93950f 100644
--- a/packages/midscene/src/env.ts
+++ b/packages/midscene/src/env.ts
@@ -22,6 +22,11 @@ export const MIDSCENE_AZURE_OPENAI_SCOPE = 'MIDSCENE_AZURE_OPENAI_SCOPE';
 export const MIDSCENE_AZURE_OPENAI_INIT_CONFIG_JSON =
   'MIDSCENE_AZURE_OPENAI_INIT_CONFIG_JSON';
 
+export const AZURE_OPENAI_ENDPOINT = 'AZURE_OPENAI_ENDPOINT';
+export const AZURE_OPENAI_KEY = 'AZURE_OPENAI_KEY';
+export const AZURE_OPENAI_API_VERSION = 'AZURE_OPENAI_API_VERSION';
+export const AZURE_OPENAI_DEPLOYMENT = 'AZURE_OPENAI_DEPLOYMENT';
+
 export const MIDSCENE_USE_ANTHROPIC_SDK = 'MIDSCENE_USE_ANTHROPIC_SDK';
 export const ANTHROPIC_API_KEY = 'ANTHROPIC_API_KEY';
 
@@ -55,13 +60,18 @@ const allConfigFromEnv = () => {
     [MIDSCENE_USE_AZURE_OPENAI]:
       process.env[MIDSCENE_USE_AZURE_OPENAI] || undefined,
     [MIDSCENE_AZURE_OPENAI_SCOPE]:
-      process.env[MIDSCENE_AZURE_OPENAI_SCOPE] ||
-      'https://cognitiveservices.azure.com/.default',
+      process.env[MIDSCENE_AZURE_OPENAI_SCOPE] || undefined,
     [MIDSCENE_AZURE_OPENAI_INIT_CONFIG_JSON]:
       process.env[MIDSCENE_AZURE_OPENAI_INIT_CONFIG_JSON] || undefined,
     [MIDSCENE_USE_ANTHROPIC_SDK]:
       process.env[MIDSCENE_USE_ANTHROPIC_SDK] || undefined,
     [ANTHROPIC_API_KEY]: process.env[ANTHROPIC_API_KEY] || undefined,
+    [AZURE_OPENAI_ENDPOINT]: process.env[AZURE_OPENAI_ENDPOINT] || undefined,
+    [AZURE_OPENAI_KEY]: process.env[AZURE_OPENAI_KEY] || undefined,
+    [AZURE_OPENAI_API_VERSION]:
+      process.env[AZURE_OPENAI_API_VERSION] || undefined,
+    [AZURE_OPENAI_DEPLOYMENT]:
+      process.env[AZURE_OPENAI_DEPLOYMENT] || undefined,
   };
 };