diff --git a/docker/docker-compose.proxy.yml b/docker/docker-compose.proxy.yml
index 2a68a630..ec31979f 100644
--- a/docker/docker-compose.proxy.yml
+++ b/docker/docker-compose.proxy.yml
@@ -49,6 +49,7 @@ services:
       - DATABASE_URL=${DATABASE_URL:-postgresql://postgres:postgres@postgres:5432/bytebotdb}
       - BYTEBOT_DESKTOP_BASE_URL=${BYTEBOT_DESKTOP_BASE_URL:-http://bytebot-desktop:9990}
       - BYTEBOT_LLM_PROXY_URL=${BYTEBOT_LLM_PROXY_URL:-http://bytebot-llm-proxy:4000}
+      - BYTEBOT_LLM_PROXY_API_KEY=${BYTEBOT_LLM_PROXY_API_KEY:-}
     depends_on:
       - postgres
     networks:
diff --git a/docs/deployment/litellm.mdx b/docs/deployment/litellm.mdx
index 41d79d6b..9ba96f3f 100644
--- a/docs/deployment/litellm.mdx
+++ b/docs/deployment/litellm.mdx
@@ -51,7 +51,7 @@ Bytebot includes a pre-configured LiteLLM proxy service that makes it easy to us
     
     This automatically:
     - Starts the `bytebot-llm-proxy` service on port 4000
-    - Configures the agent to use the proxy via `BYTEBOT_LLM_PROXY_URL`
+    - Configures the agent to use the proxy via `BYTEBOT_LLM_PROXY_URL` and the optional `BYTEBOT_LLM_PROXY_API_KEY`
     - Makes all configured models available through the proxy
   </Step>
   
@@ -304,6 +304,7 @@ services:
     environment:
       # Point to your external LiteLLM instance
       - BYTEBOT_LLM_PROXY_URL=http://your-litellm-server:4000
+      - BYTEBOT_LLM_PROXY_API_KEY=sk-your-key-here
     # ... rest of config
 ```
 
@@ -312,6 +313,7 @@ services:
 ```bash
 # Set the proxy URL before starting
 export BYTEBOT_LLM_PROXY_URL=http://your-litellm-server:4000
+export BYTEBOT_LLM_PROXY_API_KEY=sk-your-key-here
 
 # Start normally
 docker-compose -f docker/docker-compose.yml up -d
@@ -331,6 +333,7 @@ docker run -d \
 
 # Then start Bytebot with:
 export BYTEBOT_LLM_PROXY_URL=http://localhost:4000
+export BYTEBOT_LLM_PROXY_API_KEY=sk-your-key-here
 docker-compose up -d
 ```
 
diff --git a/helm/charts/bytebot-agent/templates/deployment.yaml b/helm/charts/bytebot-agent/templates/deployment.yaml
index 059e8fa3..0dc35f8b 100644
--- a/helm/charts/bytebot-agent/templates/deployment.yaml
+++ b/helm/charts/bytebot-agent/templates/deployment.yaml
@@ -31,6 +31,10 @@ spec:
         - name: BYTEBOT_LLM_PROXY_URL
           value: {{ .Values.config.llmProxyUrl | default .Values.env.BYTEBOT_LLM_PROXY_URL | quote }}
         {{- end }}
+        {{- if or .Values.config.llmProxyApiKey .Values.env.BYTEBOT_LLM_PROXY_API_KEY }}
+        - name: BYTEBOT_LLM_PROXY_API_KEY
+          value: {{ .Values.config.llmProxyApiKey | default .Values.env.BYTEBOT_LLM_PROXY_API_KEY | quote }}
+        {{- end }}
         {{- /* Anthropic API Key */ -}}
         {{- if .Values.env.ANTHROPIC_API_KEY }}
         - name: ANTHROPIC_API_KEY
diff --git a/helm/charts/bytebot-agent/values.yaml b/helm/charts/bytebot-agent/values.yaml
index a231f1a0..985839aa 100644
--- a/helm/charts/bytebot-agent/values.yaml
+++ b/helm/charts/bytebot-agent/values.yaml
@@ -32,6 +32,7 @@ env:
   DATABASE_URL: ""
   BYTEBOT_DESKTOP_BASE_URL: "http://bytebot-desktop:9990"
   BYTEBOT_LLM_PROXY_URL: ""
+  BYTEBOT_LLM_PROXY_API_KEY: ""
   # Legacy API key values for backward compatibility
   ANTHROPIC_API_KEY: ""
   OPENAI_API_KEY: ""
diff --git a/packages/bytebot-agent/src/proxy/proxy.service.ts b/packages/bytebot-agent/src/proxy/proxy.service.ts
index 30e843f8..e5e87309 100644
--- a/packages/bytebot-agent/src/proxy/proxy.service.ts
+++ b/packages/bytebot-agent/src/proxy/proxy.service.ts
@@ -32,6 +32,7 @@ export class ProxyService implements BytebotAgentService {
 
   constructor(private readonly configService: ConfigService) {
     const proxyUrl = this.configService.get<string>('BYTEBOT_LLM_PROXY_URL');
+    const proxyApiKey = this.configService.get<string>('BYTEBOT_LLM_PROXY_API_KEY');
 
     if (!proxyUrl) {
       this.logger.warn(
@@ -41,7 +42,7 @@ export class ProxyService implements BytebotAgentService {
 
     // Initialize OpenAI client with proxy configuration
     this.openai = new OpenAI({
-      apiKey: 'dummy-key-for-proxy',
+      apiKey: proxyApiKey ?? 'dummy-key-for-proxy',
       baseURL: proxyUrl,
     });
   }
diff --git a/packages/bytebot-agent/src/tasks/tasks.controller.ts b/packages/bytebot-agent/src/tasks/tasks.controller.ts
index 982c4a4f..8acac58e 100644
--- a/packages/bytebot-agent/src/tasks/tasks.controller.ts
+++ b/packages/bytebot-agent/src/tasks/tasks.controller.ts
@@ -25,6 +25,7 @@ const anthropicApiKey = process.env.ANTHROPIC_API_KEY;
 const openaiApiKey = process.env.OPENAI_API_KEY;
 
 const proxyUrl = process.env.BYTEBOT_LLM_PROXY_URL;
+const proxyApiKey = process.env.BYTEBOT_LLM_PROXY_API_KEY;
 
 const models = [
   ...(anthropicApiKey ? ANTHROPIC_MODELS : []),
@@ -70,11 +71,18 @@ export class TasksController {
   async getModels() {
     if (proxyUrl) {
       try {
+        const headers: Record<string, string> = {
+          'Content-Type': 'application/json',
+        };
+
+        if (proxyApiKey) {
+          // LiteLLM proxy is OpenAI-compatible → Bearer token expected
+          headers.Authorization = `Bearer ${proxyApiKey}`;
+        }
+
         const response = await fetch(`${proxyUrl}/model/info`, {
           method: 'GET',
-          headers: {
-            'Content-Type': 'application/json',
-          },
+          headers,
         });
 
         if (!response.ok) {