diff --git a/examples/session-get.rs b/examples/session-get.rs
index db180ce..e8b4193 100644
--- a/examples/session-get.rs
+++ b/examples/session-get.rs
@@ -10,11 +10,12 @@ async fn main() -> Result<()> {
     dotenv().ok();
     env_logger::init();
     let url = env::var("TURL")?;
-    let basic_auth = BasicAuth {
-        user: env::var("TUSER")?,
-        password: env::var("TPWD")?,
-    };
-    let client = TransClient::with_auth(&url, basic_auth);
+    let client;
+    if let (Ok(user), Ok(password)) = (env::var("TUSER"), env::var("TPWD")) {
+        client = TransClient::with_auth(&url, BasicAuth {user, password});
+    } else {
+        client = TransClient::new(&url);
+    }
     let response: Result<RpcResponse<SessionGet>> = client.session_get().await;
     match response {
         Ok(_) => println!("Yay!"),
diff --git a/examples/torrent-action.rs b/examples/torrent-action.rs
index e9aadc7..d247756 100644
--- a/examples/torrent-action.rs
+++ b/examples/torrent-action.rs
@@ -11,11 +11,12 @@ async fn main() -> Result<()> {
     dotenv().ok();
     env_logger::init();
     let url = env::var("TURL")?;
-    let basic_auth = BasicAuth {
-        user: env::var("TUSER")?,
-        password: env::var("TPWD")?,
-    };
-    let client = TransClient::with_auth(&url, basic_auth);
+    let client;
+    if let (Ok(user), Ok(password)) = (env::var("TUSER"), env::var("TPWD")) {
+        client = TransClient::with_auth(&url, BasicAuth {user, password});
+    } else {
+        client = TransClient::new(&url);
+    }
     let res1: RpcResponse<Nothing> = client.torrent_action(TorrentAction::Start, vec![Id::Id(1)]).await?;
     println!("Start result: {:?}", &res1.is_ok());
     let res2: RpcResponse<Nothing> = client.torrent_action(TorrentAction::Stop, vec![Id::Id(1)]).await?;
diff --git a/examples/torrent-add.rs b/examples/torrent-add.rs
index e8f75ef..d8e327a 100644
--- a/examples/torrent-add.rs
+++ b/examples/torrent-add.rs
@@ -11,11 +11,12 @@ async fn main() -> Result<()> {
     dotenv().ok();
     env_logger::init();
     let url = env::var("TURL")?;
-    let basic_auth = BasicAuth {
-        user: env::var("TUSER")?,
-        password: env::var("TPWD")?,
-    };
-    let client = TransClient::with_auth(&url, basic_auth);
+    let client;
+    if let (Ok(user), Ok(password)) = (env::var("TUSER"), env::var("TPWD")) {
+        client = TransClient::with_auth(&url, BasicAuth {user, password});
+    } else {
+        client = TransClient::new(&url);
+    }
     let add: TorrentAddArgs = TorrentAddArgs {
         filename: Some("https://releases.ubuntu.com/20.04/ubuntu-20.04-desktop-amd64.iso.torrent".to_string()),
         ..TorrentAddArgs::default()
diff --git a/examples/torrent-get.rs b/examples/torrent-get.rs
index 41342ab..01c6b45 100644
--- a/examples/torrent-get.rs
+++ b/examples/torrent-get.rs
@@ -11,11 +11,12 @@ async fn main() -> Result<()> {
     dotenv().ok();
     env_logger::init();
     let url = env::var("TURL")?;
-    let basic_auth = BasicAuth {
-        user: env::var("TUSER")?,
-        password: env::var("TPWD")?,
-    };
-    let client = TransClient::with_auth(&url, basic_auth);
+    let client;
+    if let (Ok(user), Ok(password)) = (env::var("TUSER"), env::var("TPWD")) {
+        client = TransClient::with_auth(&url, BasicAuth {user, password});
+    } else {
+        client = TransClient::new(&url);
+    }
 
     let res: RpcResponse<Torrents<Torrent>> = client.torrent_get(None, None).await?;
     let names: Vec<&String> = res
diff --git a/examples/torrent-remove.rs b/examples/torrent-remove.rs
index 898e886..9b8e2cc 100644
--- a/examples/torrent-remove.rs
+++ b/examples/torrent-remove.rs
@@ -11,11 +11,12 @@ async fn main() -> Result<()> {
     dotenv().ok();
     env_logger::init();
     let url = env::var("TURL")?;
-    let basic_auth = BasicAuth {
-        user: env::var("TUSER")?,
-        password: env::var("TPWD")?,
-    };
-    let client = TransClient::with_auth(&url, basic_auth);
+    let client;
+    if let (Ok(user), Ok(password)) = (env::var("TUSER"), env::var("TPWD")) {
+        client = TransClient::with_auth(&url, BasicAuth {user, password});
+    } else {
+        client = TransClient::new(&url);
+    }
     let res: RpcResponse<Nothing> = client.torrent_remove(vec![Id::Id(1)], false).await?;
     println!("Remove result: {:?}", &res.is_ok());
 
diff --git a/examples/torrent-set-location.rs b/examples/torrent-set-location.rs
index 61a204d..881f25c 100644
--- a/examples/torrent-set-location.rs
+++ b/examples/torrent-set-location.rs
@@ -11,11 +11,12 @@ async fn main() -> Result<()> {
     dotenv().ok();
     env_logger::init();
     let url = env::var("TURL")?;
-    let basic_auth = BasicAuth {
-        user: env::var("TUSER")?,
-        password: env::var("TPWD")?,
-    };
-    let client = TransClient::with_auth(&url, basic_auth);
+    let client;
+    if let (Ok(user), Ok(password)) = (env::var("TUSER"), env::var("TPWD")) {
+        client = TransClient::with_auth(&url, BasicAuth {user, password});
+    } else {
+        client = TransClient::new(&url);
+    }
     let res: RpcResponse<Nothing> = client.torrent_set_location(
             vec![Id::Id(1)],
             String::from("/new/location"),
diff --git a/src/lib.rs b/src/lib.rs
index be8fa0f..f01d56a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -157,7 +157,7 @@ impl TransClient {
     ///             &it.name.as_ref().unwrap())
     ///     ).collect();
     ///     println!("{:#?}", info);
-    ///     
+    ///
     ///     Ok(())
     /// }
     /// ```
@@ -197,7 +197,7 @@ impl TransClient {
     ///     println!("Start result: {:?}", &res1.is_ok());
     ///     let res2: RpcResponse<Nothing> = client.torrent_action(TorrentAction::Stop, vec![Id::Id(1)]).await?;
     ///     println!("Stop result: {:?}", &res2.is_ok());
-    ///     
+    ///
     ///     Ok(())
     /// }
     /// ```
@@ -235,7 +235,7 @@ impl TransClient {
     ///     let client = TransClient::with_auth(&url, basic_auth);
     ///     let res: RpcResponse<Nothing> = client.torrent_remove(vec![Id::Id(1)], false).await?;
     ///     println!("Remove result: {:?}", &res.is_ok());
-    ///     
+    ///
     ///     Ok(())
     /// }
     /// ```
@@ -319,7 +319,7 @@ impl TransClient {
     ///     let res: RpcResponse<TorrentAdded> = client.torrent_add(add).await?;
     ///     println!("Add result: {:?}", &res.is_ok());
     ///     println!("response: {:?}", &res);
-    ///     
+    ///
     ///     Ok(())
     /// }
     /// ```
@@ -380,11 +380,12 @@ mod tests {
         dotenv().ok();
         env_logger::init();
         let url = env::var("TURL")?;
-        let basic_auth = BasicAuth {
-            user: env::var("TUSER")?,
-            password: env::var("TPWD")?,
-        };
-        let client = TransClient::with_auth(&url, basic_auth);
+        let client;
+        if let (Ok(user), Ok(password)) = (env::var("TUSER"), env::var("TPWD")) {
+            client = TransClient::with_auth(&url, BasicAuth {user, password});
+        } else {
+            client = TransClient::new(&url);
+        }
         info!("Client is ready!");
         let add: TorrentAddArgs = TorrentAddArgs {
             filename: Some(