diff --git a/crates/meilisearch/src/routes/chat.rs b/crates/meilisearch/src/routes/chat.rs
index 2715cff72..f794ba19c 100644
--- a/crates/meilisearch/src/routes/chat.rs
+++ b/crates/meilisearch/src/routes/chat.rs
@@ -76,12 +76,23 @@ async fn chat(
 }
 
 /// Setup search tool in chat completion request
-fn setup_search_tool(chat_completion: &mut CreateChatCompletionRequest, prompts: &ChatPrompts) {
+fn setup_search_tool(
+    index_scheduler: &Data<IndexScheduler>,
+    filters: &meilisearch_auth::AuthFilter,
+    chat_completion: &mut CreateChatCompletionRequest,
+    prompts: &ChatPrompts,
+) -> Result<(), ResponseError> {
     let tools = chat_completion.tools.get_or_insert_default();
     if tools.iter().find(|t| t.function.name == SEARCH_IN_INDEX_FUNCTION_NAME).is_some() {
         panic!("{SEARCH_IN_INDEX_FUNCTION_NAME} function already set");
     }
 
+    let index_uids: Vec<_> = index_scheduler
+        .index_names()?
+        .into_iter()
+        .filter(|index_uid| filters.is_index_authorized(&index_uid))
+        .collect();
+
     let tool = ChatCompletionToolArgs::default()
         .r#type(ChatCompletionToolType::Function)
         .function(
@@ -93,7 +104,7 @@ fn setup_search_tool(chat_completion: &mut CreateChatCompletionRequest, prompts:
                     "properties": {
                         "index_uid": {
                             "type": "string",
-                            "enum": ["main"],
+                            "enum": index_uids,
                             "description": prompts.search_index_uid_param,
                         },
                         "q": {
@@ -120,6 +131,8 @@ fn setup_search_tool(chat_completion: &mut CreateChatCompletionRequest, prompts:
             name: None,
         }),
     );
+
+    Ok(())
 }
 
 /// Process search request and return formatted results
@@ -199,6 +212,8 @@ async fn non_streamed_chat(
     search_queue: web::Data<SearchQueue>,
     mut chat_completion: CreateChatCompletionRequest,
 ) -> Result<HttpResponse, ResponseError> {
+    let filters = index_scheduler.filters();
+
     let chat_settings = match index_scheduler.chat_settings().unwrap() {
         Some(value) => serde_json::from_value(value).unwrap(),
         None => ChatSettings::default(),
@@ -214,7 +229,7 @@ async fn non_streamed_chat(
     let client = Client::with_config(config);
 
     let auth_token = extract_token_from_request(&req)?.unwrap();
-    setup_search_tool(&mut chat_completion, &chat_settings.prompts);
+    setup_search_tool(&index_scheduler, filters, &mut chat_completion, &chat_settings.prompts)?;
 
     let mut response;
     loop {
@@ -279,6 +294,8 @@ async fn streamed_chat(
     search_queue: web::Data<SearchQueue>,
     mut chat_completion: CreateChatCompletionRequest,
 ) -> Result<impl Responder, ResponseError> {
+    let filters = index_scheduler.filters();
+
     let chat_settings = match index_scheduler.chat_settings().unwrap() {
         Some(value) => serde_json::from_value(value).unwrap(),
         None => ChatSettings::default(),
@@ -293,7 +310,7 @@ async fn streamed_chat(
     }
 
     let auth_token = extract_token_from_request(&req)?.unwrap().to_string();
-    setup_search_tool(&mut chat_completion, &chat_settings.prompts);
+    setup_search_tool(&index_scheduler, filters, &mut chat_completion, &chat_settings.prompts)?;
 
     let (tx, rx) = tokio::sync::mpsc::channel(10);
     let _join_handle = Handle::current().spawn(async move {