diff --git a/src/exchange/exchange_client.rs b/src/exchange/exchange_client.rs
index fd1fb703..2dfb0763 100644
--- a/src/exchange/exchange_client.rs
+++ b/src/exchange/exchange_client.rs
@@ -106,10 +106,24 @@ impl ExchangeClient {
         meta: Option<Meta>,
         vault_address: Option<Address>,
     ) -> Result<ExchangeClient> {
-        let client = client.unwrap_or_default();
         let base_url = base_url.unwrap_or(BaseUrl::Mainnet);
+        let is_mainnet = base_url.is_mainnet();
+        let base_url = base_url.get_url();
+        Self::with_custom_url(client, wallet, base_url, is_mainnet, meta, vault_address).await
+    }
+
+    pub async fn with_custom_url(
+        client: Option<Client>,
+        wallet: PrivateKeySigner,
+        base_url: String,
+        is_mainnet: bool,
+        meta: Option<Meta>,
+        vault_address: Option<Address>,
+    ) -> Result<ExchangeClient> {
+        let client = client.unwrap_or_default();
+
+        let info = InfoClient::with_custom_url(None, base_url.clone(), is_mainnet, false).await?;
 
-        let info = InfoClient::new(None, Some(base_url)).await?;
         let meta = if let Some(meta) = meta {
             meta
         } else {
@@ -132,7 +146,8 @@ impl ExchangeClient {
             vault_address,
             http_client: HttpClient {
                 client,
-                base_url: base_url.get_url(),
+                base_url,
+                is_mainnet,
             },
             coin_to_asset,
         })
diff --git a/src/helpers.rs b/src/helpers.rs
index c642af7e..e49a66f2 100644
--- a/src/helpers.rs
+++ b/src/helpers.rs
@@ -85,6 +85,14 @@ impl BaseUrl {
             BaseUrl::Testnet => TESTNET_API_URL.to_string(),
         }
     }
+
+    pub(crate) fn is_mainnet(&self) -> bool {
+        match self {
+            BaseUrl::Mainnet => true,
+            BaseUrl::Testnet => false,
+            BaseUrl::Localhost => false,
+        }
+    }
 }
 
 lazy_static! {
diff --git a/src/info/info_client.rs b/src/info/info_client.rs
index 4b109f97..e3ed273b 100644
--- a/src/info/info_client.rs
+++ b/src/info/info_client.rs
@@ -7,8 +7,9 @@ use tokio::sync::mpsc::UnboundedSender;
 
 use crate::{
     info::{
-        CandlesSnapshotResponse, FundingHistoryResponse, L2SnapshotResponse, OpenOrdersResponse,
-        OrderInfo, RecentTradesResponse, UserFillsResponse, UserStateResponse, ActiveAssetDataResponse,
+        ActiveAssetDataResponse, CandlesSnapshotResponse, FundingHistoryResponse,
+        L2SnapshotResponse, OpenOrdersResponse, OrderInfo, RecentTradesResponse, UserFillsResponse,
+        UserStateResponse,
     },
     meta::{AssetContext, Meta, SpotMeta, SpotMetaAndAssetCtxs},
     prelude::*,
@@ -104,26 +105,41 @@ pub struct InfoClient {
 
 impl InfoClient {
     pub async fn new(client: Option<Client>, base_url: Option<BaseUrl>) -> Result<InfoClient> {
-        Self::new_internal(client, base_url, false).await
+        Self::with_base_url(client, base_url, false).await
     }
 
     pub async fn with_reconnect(
         client: Option<Client>,
         base_url: Option<BaseUrl>,
     ) -> Result<InfoClient> {
-        Self::new_internal(client, base_url, true).await
+        Self::with_base_url(client, base_url, true).await
     }
 
-    async fn new_internal(
+    async fn with_base_url(
         client: Option<Client>,
         base_url: Option<BaseUrl>,
         reconnect: bool,
+    ) -> Result<InfoClient> {
+        let base_url = base_url.unwrap_or(BaseUrl::Mainnet);
+        let is_mainnet = base_url.is_mainnet();
+        let base_url = base_url.get_url();
+        Self::with_custom_url(client, base_url, is_mainnet, reconnect).await
+    }
+
+    pub async fn with_custom_url(
+        client: Option<Client>,
+        base_url: String,
+        is_mainnet: bool,
+        reconnect: bool,
     ) -> Result<InfoClient> {
         let client = client.unwrap_or_default();
-        let base_url = base_url.unwrap_or(BaseUrl::Mainnet).get_url();
 
         Ok(InfoClient {
-            http_client: HttpClient { client, base_url },
+            http_client: HttpClient {
+                client,
+                base_url,
+                is_mainnet,
+            },
             ws_manager: None,
             reconnect,
         })
@@ -311,7 +327,11 @@ impl InfoClient {
         self.send_info_request(input).await
     }
 
-    pub async fn active_asset_data(&self, user: Address, coin: String) -> Result<ActiveAssetDataResponse> {
+    pub async fn active_asset_data(
+        &self,
+        user: Address,
+        coin: String,
+    ) -> Result<ActiveAssetDataResponse> {
         let input = InfoRequest::ActiveAssetData { user, coin };
         self.send_info_request(input).await
     }
diff --git a/src/req.rs b/src/req.rs
index f7d5e430..2ced7917 100644
--- a/src/req.rs
+++ b/src/req.rs
@@ -1,7 +1,7 @@
 use reqwest::{Client, Response};
 use serde::Deserialize;
 
-use crate::{prelude::*, BaseUrl, Error};
+use crate::{prelude::*, Error};
 
 #[derive(Deserialize, Debug)]
 struct ErrorData {
@@ -14,6 +14,7 @@ struct ErrorData {
 pub struct HttpClient {
     pub client: Client,
     pub base_url: String,
+    pub is_mainnet: bool,
 }
 
 async fn parse_response(response: Response) -> Result<String> {
@@ -70,6 +71,6 @@ impl HttpClient {
     }
 
     pub fn is_mainnet(&self) -> bool {
-        self.base_url == BaseUrl::Mainnet.get_url()
+        self.is_mainnet
     }
 }