diff --git a/cs/src/Contracts/TunnelServiceProperties.cs b/cs/src/Contracts/TunnelServiceProperties.cs
index 093cce4f..c4cc2c81 100644
--- a/cs/src/Contracts/TunnelServiceProperties.cs
+++ b/cs/src/Contracts/TunnelServiceProperties.cs
@@ -27,6 +27,11 @@ public class TunnelServiceProperties
     /// </summary>
     internal const string DevDnsName = "global.ci.tunnels.dev.api.visualstudio.com";
 
+    /// <summary>
+    /// Default host name for the local tunnel service.
+    /// </summary>
+    internal const string LocalDnsName = "tunnels.local.api.visualstudio.com:9901";
+
     /// <summary>
     /// First-party app ID: `Visual Studio Tunnel Service`
     /// </summary>
@@ -95,10 +100,28 @@ public class TunnelServiceProperties
     /// GitHub App Client ID for 'Visual Studio Tunnel Service - Test'
     /// </summary>
     /// <remarks>
-    /// Used by client apps that authenticate tunnel users with GitHub, in the PPE and DEV
-    /// service environments.
+    /// Used by client apps that authenticate tunnel users with GitHub, in the PPE
+    /// service environment.
+    /// </remarks>
+    internal const string PpeGitHubAppClientId = "Iv1.b231c327f1eaa229";
+
+    /// <summary>
+    /// GitHub App Client ID for 'Dev Tunnels Service - Dev'
+    /// </summary>
+    /// <remarks>
+    /// Used by client apps that authenticate tunnel users with GitHub, in the DEV
+    /// service environment.
+    /// </remarks>
+    internal const string DevGitHubAppClientId = "Iv23ctTiak9wLCiTcEbr";
+
+    /// <summary>
+    /// GitHub App Client ID for 'Dev Tunnels Service - Local'
+    /// </summary>
+    /// <remarks>
+    /// Used by client apps that authenticate tunnel users with GitHub, when running
+    /// the service locally.
     /// </remarks>
-    internal const string NonProdGitHubAppClientId = "Iv1.b231c327f1eaa229";
+    internal const string LocalGitHubAppClientId = "Iv23cttBYzKThF88PiPR";
 
     private TunnelServiceProperties(
         string serviceUri,
@@ -128,7 +151,7 @@ private TunnelServiceProperties(
         $"https://{PpeDnsName}/",
         PpeFirstPartyAppId,
         PpeThirdPartyAppId,
-        NonProdGitHubAppClientId);
+        PpeGitHubAppClientId);
 
     /// <summary>
     /// Gets properties for the service in the development environment.
@@ -137,7 +160,20 @@ private TunnelServiceProperties(
         $"https://{DevDnsName}/",
         DevFirstPartyAppId,
         DevThirdPartyAppId,
-        NonProdGitHubAppClientId);
+        DevGitHubAppClientId);
+
+    /// <summary>
+    /// Gets properties for the service when running locally.
+    /// </summary>
+    /// <remarks>
+    /// Uses the same service app IDs as the development environment, but a different
+    /// GitHub app with localhost callback URLs.
+    /// </remarks>
+    public static TunnelServiceProperties Local { get; } = new TunnelServiceProperties(
+        $"https://{LocalDnsName}/",
+        DevFirstPartyAppId,
+        DevThirdPartyAppId,
+        LocalGitHubAppClientId);
 
     /// <summary>
     /// Gets properties for the service in the specified environment.
@@ -157,6 +193,7 @@ public static TunnelServiceProperties Environment(string environmentName)
             "prod" or "production" => TunnelServiceProperties.Production,
             "ppe" or "preprod" or "staging" => TunnelServiceProperties.Staging,
             "dev" or "development" => TunnelServiceProperties.Development,
+            "local" => TunnelServiceProperties.Local,
             _ => throw new ArgumentException($"Invalid service environment: {environmentName}"),
         };
     }
diff --git a/go/tunnels/manager.go b/go/tunnels/manager.go
index 3ea47475..b316abb4 100644
--- a/go/tunnels/manager.go
+++ b/go/tunnels/manager.go
@@ -28,14 +28,23 @@ var PpeServiceProperties = TunnelServiceProperties{
 	ServiceURI:           fmt.Sprintf("https://%s/", ppeDnsName),
 	ServiceAppID:         ppeFirstPartyAppID,
 	ServiceInternalAppID: ppeThirdPartyAppID,
-	GitHubAppClientID:    nonProdGitHubAppClientID,
+	GitHubAppClientID:    ppeGitHubAppClientID,
 }
 
 var DevServiceProperties = TunnelServiceProperties{
 	ServiceURI:           fmt.Sprintf("https://%s/", devDnsName),
 	ServiceAppID:         devFirstPartyAppID,
 	ServiceInternalAppID: devThirdPartyAppID,
-	GitHubAppClientID:    nonProdGitHubAppClientID,
+	GitHubAppClientID:    devGitHubAppClientID,
+}
+
+// LocalServiceProperties uses the same service app IDs as the development environment,
+// but a different GitHub app with localhost callback URLs.
+var LocalServiceProperties = TunnelServiceProperties{
+	ServiceURI:           fmt.Sprintf("https://%s/", localDnsName),
+	ServiceAppID:         devFirstPartyAppID,
+	ServiceInternalAppID: devThirdPartyAppID,
+	GitHubAppClientID:    localGitHubAppClientID,
 }
 
 type tokenProviderfn func() string
diff --git a/go/tunnels/tunnel_service_properties.go b/go/tunnels/tunnel_service_properties.go
index bc2a59d0..cac6bd3b 100644
--- a/go/tunnels/tunnel_service_properties.go
+++ b/go/tunnels/tunnel_service_properties.go
@@ -38,6 +38,9 @@ var ppeDnsName = "global.rel.tunnels.ppe.api.visualstudio.com"
 // Global DNS name of the development tunnel service.
 var devDnsName = "global.ci.tunnels.dev.api.visualstudio.com"
 
+// Default host name for the local tunnel service.
+var localDnsName = "tunnels.local.api.visualstudio.com:9901"
+
 // First-party app ID: `Visual Studio Tunnel Service`
 //
 // Used for authenticating AAD/MSA users, and service principals outside the AME tenant,
@@ -83,6 +86,18 @@ var prodGitHubAppClientID = "Iv1.e7b89e013f801f03"
 
 // GitHub App Client ID for 'Visual Studio Tunnel Service - Test'
 //
-// Used by client apps that authenticate tunnel users with GitHub, in the PPE and DEV
-// service environments.
-var nonProdGitHubAppClientID = "Iv1.b231c327f1eaa229"
+// Used by client apps that authenticate tunnel users with GitHub, in the PPE service
+// environment.
+var ppeGitHubAppClientID = "Iv1.b231c327f1eaa229"
+
+// GitHub App Client ID for 'Dev Tunnels Service - Dev'
+//
+// Used by client apps that authenticate tunnel users with GitHub, in the DEV service
+// environment.
+var devGitHubAppClientID = "Iv23ctTiak9wLCiTcEbr"
+
+// GitHub App Client ID for 'Dev Tunnels Service - Local'
+//
+// Used by client apps that authenticate tunnel users with GitHub, when running the
+// service locally.
+var localGitHubAppClientID = "Iv23cttBYzKThF88PiPR"
diff --git a/go/tunnels/tunnels.go b/go/tunnels/tunnels.go
index fc6953f2..2d8c7ee8 100644
--- a/go/tunnels/tunnels.go
+++ b/go/tunnels/tunnels.go
@@ -10,7 +10,7 @@ import (
 	"github.com/rodaine/table"
 )
 
-const PackageVersion = "0.1.23"
+const PackageVersion = "0.1.24"
 
 func (tunnel *Tunnel) requestObject() (*Tunnel, error) {
 	convertedTunnel := &Tunnel{
diff --git a/java/src/main/java/com/microsoft/tunnels/contracts/TunnelServiceProperties.java b/java/src/main/java/com/microsoft/tunnels/contracts/TunnelServiceProperties.java
index 9eec5cda..82405f1a 100644
--- a/java/src/main/java/com/microsoft/tunnels/contracts/TunnelServiceProperties.java
+++ b/java/src/main/java/com/microsoft/tunnels/contracts/TunnelServiceProperties.java
@@ -32,6 +32,11 @@ public class TunnelServiceProperties {
      */
     static final String devDnsName = "global.ci.tunnels.dev.api.visualstudio.com";
 
+    /**
+     * Default host name for the local tunnel service.
+     */
+    static final String localDnsName = "tunnels.local.api.visualstudio.com:9901";
+
     /**
      * First-party app ID: `Visual Studio Tunnel Service`
      *
@@ -92,10 +97,26 @@ public class TunnelServiceProperties {
     /**
      * GitHub App Client ID for 'Visual Studio Tunnel Service - Test'
      *
-     * Used by client apps that authenticate tunnel users with GitHub, in the PPE and DEV
-     * service environments.
+     * Used by client apps that authenticate tunnel users with GitHub, in the PPE service
+     * environment.
+     */
+    static final String ppeGitHubAppClientId = "Iv1.b231c327f1eaa229";
+
+    /**
+     * GitHub App Client ID for 'Dev Tunnels Service - Dev'
+     *
+     * Used by client apps that authenticate tunnel users with GitHub, in the DEV service
+     * environment.
      */
-    static final String nonProdGitHubAppClientId = "Iv1.b231c327f1eaa229";
+    static final String devGitHubAppClientId = "Iv23ctTiak9wLCiTcEbr";
+
+    /**
+     * GitHub App Client ID for 'Dev Tunnels Service - Local'
+     *
+     * Used by client apps that authenticate tunnel users with GitHub, when running the
+     * service locally.
+     */
+    static final String localGitHubAppClientId = "Iv23cttBYzKThF88PiPR";
 
     /**
      * Gets production service properties.
@@ -112,6 +133,14 @@ public class TunnelServiceProperties {
      */
     public static final TunnelServiceProperties development = TunnelServicePropertiesStatics.development;
 
+    /**
+     * Gets properties for the service when running locally.
+     *
+     * Uses the same service app IDs as the development environment, but a different
+     * GitHub app with localhost callback URLs.
+     */
+    public static final TunnelServiceProperties local = TunnelServicePropertiesStatics.local;
+
     /**
      * Gets the base URI of the service.
      */
diff --git a/java/src/main/java/com/microsoft/tunnels/contracts/TunnelServicePropertiesStatics.java b/java/src/main/java/com/microsoft/tunnels/contracts/TunnelServicePropertiesStatics.java
index 1ce3c514..51cf2167 100644
--- a/java/src/main/java/com/microsoft/tunnels/contracts/TunnelServicePropertiesStatics.java
+++ b/java/src/main/java/com/microsoft/tunnels/contracts/TunnelServicePropertiesStatics.java
@@ -24,7 +24,7 @@ class TunnelServicePropertiesStatics {
       "https://" + TunnelServiceProperties.ppeDnsName + "/",
       TunnelServiceProperties.ppeFirstPartyAppId,
       TunnelServiceProperties.ppeThirdPartyAppId,
-      TunnelServiceProperties.nonProdGitHubAppClientId);
+      TunnelServiceProperties.ppeGitHubAppClientId);
 
   /**
    * Gets properties for the service in the development environment.
@@ -33,7 +33,19 @@ class TunnelServicePropertiesStatics {
       "https://" + TunnelServiceProperties.devDnsName + "/",
       TunnelServiceProperties.devFirstPartyAppId,
       TunnelServiceProperties.devThirdPartyAppId,
-      TunnelServiceProperties.nonProdGitHubAppClientId);
+      TunnelServiceProperties.devGitHubAppClientId);
+
+  /**
+   * Gets properties for the service when running locally.
+   *
+   * Uses the same service app IDs as the development environment, but a different
+   * GitHub app with localhost callback URLs.
+   */
+  static final TunnelServiceProperties local = new TunnelServiceProperties(
+      "https://" + TunnelServiceProperties.localDnsName + "/",
+      TunnelServiceProperties.devFirstPartyAppId,
+      TunnelServiceProperties.devThirdPartyAppId,
+      TunnelServiceProperties.localGitHubAppClientId);
 
   public static TunnelServiceProperties environment(String environmentName) {
     if (StringUtils.isBlank(environmentName)) {
@@ -51,6 +63,8 @@ public static TunnelServiceProperties environment(String environmentName) {
       case "dev":
       case "development":
         return TunnelServiceProperties.development;
+      case "local":
+        return TunnelServiceProperties.local;
       default:
         throw new IllegalArgumentException("Invalid service environment: " + environmentName);
     }
diff --git a/rs/src/contracts/tunnel_environments.rs b/rs/src/contracts/tunnel_environments.rs
index cfd00c0f..e6b6d55d 100644
--- a/rs/src/contracts/tunnel_environments.rs
+++ b/rs/src/contracts/tunnel_environments.rs
@@ -15,9 +15,9 @@ pub fn env_production() -> TunnelServiceProperties {
 pub fn env_staging() -> TunnelServiceProperties {
     TunnelServiceProperties {
         service_uri: format!("https://{}", PPE_DNS_NAME),
-        service_app_id: PROD_FIRST_PARTY_APP_ID.to_owned(),
+        service_app_id: PPE_FIRST_PARTY_APP_ID.to_owned(),
         service_internal_app_id: PPE_THIRD_PARTY_APP_ID.to_owned(),
-        github_app_client_id: NON_PROD_GITHUB_APP_CLIENT_ID.to_owned(),
+        github_app_client_id: PPE_GITHUB_APP_CLIENT_ID.to_owned(),
     }
 }
 
@@ -26,6 +26,15 @@ pub fn env_development() -> TunnelServiceProperties {
         service_uri: format!("https://{}", DEV_DNS_NAME),
         service_app_id: DEV_FIRST_PARTY_APP_ID.to_owned(),
         service_internal_app_id: DEV_THIRD_PARTY_APP_ID.to_owned(),
-        github_app_client_id: NON_PROD_GITHUB_APP_CLIENT_ID.to_owned(),
+        github_app_client_id: DEV_GITHUB_APP_CLIENT_ID.to_owned(),
+    }
+}
+
+pub fn env_local() -> TunnelServiceProperties {
+    TunnelServiceProperties {
+        service_uri: format!("https://{}", LOCAL_DNS_NAME),
+        service_app_id: DEV_FIRST_PARTY_APP_ID.to_owned(),
+        service_internal_app_id: DEV_THIRD_PARTY_APP_ID.to_owned(),
+        github_app_client_id: LOCAL_GITHUB_APP_CLIENT_ID.to_owned(),
     }
 }
diff --git a/rs/src/contracts/tunnel_service_properties.rs b/rs/src/contracts/tunnel_service_properties.rs
index 529cb049..2f2f5285 100644
--- a/rs/src/contracts/tunnel_service_properties.rs
+++ b/rs/src/contracts/tunnel_service_properties.rs
@@ -40,6 +40,9 @@ pub const PPE_DNS_NAME: &str = "global.rel.tunnels.ppe.api.visualstudio.com";
 // Global DNS name of the development tunnel service.
 pub const DEV_DNS_NAME: &str = "global.ci.tunnels.dev.api.visualstudio.com";
 
+// Default host name for the local tunnel service.
+pub const LOCAL_DNS_NAME: &str = "tunnels.local.api.visualstudio.com:9901";
+
 // First-party app ID: `Visual Studio Tunnel Service`
 //
 // Used for authenticating AAD/MSA users, and service principals outside the AME tenant,
@@ -85,6 +88,18 @@ pub const PROD_GITHUB_APP_CLIENT_ID: &str = "Iv1.e7b89e013f801f03";
 
 // GitHub App Client ID for 'Visual Studio Tunnel Service - Test'
 //
-// Used by client apps that authenticate tunnel users with GitHub, in the PPE and DEV
-// service environments.
-pub const NON_PROD_GITHUB_APP_CLIENT_ID: &str = "Iv1.b231c327f1eaa229";
+// Used by client apps that authenticate tunnel users with GitHub, in the PPE service
+// environment.
+pub const PPE_GITHUB_APP_CLIENT_ID: &str = "Iv1.b231c327f1eaa229";
+
+// GitHub App Client ID for 'Dev Tunnels Service - Dev'
+//
+// Used by client apps that authenticate tunnel users with GitHub, in the DEV service
+// environment.
+pub const DEV_GITHUB_APP_CLIENT_ID: &str = "Iv23ctTiak9wLCiTcEbr";
+
+// GitHub App Client ID for 'Dev Tunnels Service - Local'
+//
+// Used by client apps that authenticate tunnel users with GitHub, when running the
+// service locally.
+pub const LOCAL_GITHUB_APP_CLIENT_ID: &str = "Iv23cttBYzKThF88PiPR";
diff --git a/ts/src/contracts/tunnelServiceProperties.ts b/ts/src/contracts/tunnelServiceProperties.ts
index 379ec3f6..521a5c01 100644
--- a/ts/src/contracts/tunnelServiceProperties.ts
+++ b/ts/src/contracts/tunnelServiceProperties.ts
@@ -53,6 +53,11 @@ export const ppeDnsName = 'global.rel.tunnels.ppe.api.visualstudio.com';
  */
 export const devDnsName = 'global.ci.tunnels.dev.api.visualstudio.com';
 
+/**
+ * Default host name for the local tunnel service.
+ */
+export const localDnsName = 'tunnels.local.api.visualstudio.com:9901';
+
 /**
  * First-party app ID: `Visual Studio Tunnel Service`
  *
@@ -113,10 +118,26 @@ export const prodGitHubAppClientId = 'Iv1.e7b89e013f801f03';
 /**
  * GitHub App Client ID for 'Visual Studio Tunnel Service - Test'
  *
- * Used by client apps that authenticate tunnel users with GitHub, in the PPE and DEV
- * service environments.
+ * Used by client apps that authenticate tunnel users with GitHub, in the PPE service
+ * environment.
+ */
+export const ppeGitHubAppClientId = 'Iv1.b231c327f1eaa229';
+
+/**
+ * GitHub App Client ID for 'Dev Tunnels Service - Dev'
+ *
+ * Used by client apps that authenticate tunnel users with GitHub, in the DEV service
+ * environment.
+ */
+export const devGitHubAppClientId = 'Iv23ctTiak9wLCiTcEbr';
+
+/**
+ * GitHub App Client ID for 'Dev Tunnels Service - Local'
+ *
+ * Used by client apps that authenticate tunnel users with GitHub, when running the
+ * service locally.
  */
-export const nonProdGitHubAppClientId = 'Iv1.b231c327f1eaa229';
+export const localGitHubAppClientId = 'Iv23cttBYzKThF88PiPR';
 
 // Import static members from a non-generated file,
 // and re-export them as an object with the same name as the interface.
@@ -124,6 +145,7 @@ import {
     production,
     staging,
     development,
+    local,
     environment,
 } from './tunnelServicePropertiesStatics';
 
@@ -131,5 +153,6 @@ export const TunnelServiceProperties = {
     production,
     staging,
     development,
+    local,
     environment,
 };
diff --git a/ts/src/contracts/tunnelServicePropertiesStatics.ts b/ts/src/contracts/tunnelServicePropertiesStatics.ts
index 2f715fcc..b9359b10 100644
--- a/ts/src/contracts/tunnelServicePropertiesStatics.ts
+++ b/ts/src/contracts/tunnelServicePropertiesStatics.ts
@@ -10,10 +10,13 @@ import {
     ppeThirdPartyAppId,
     devThirdPartyAppId,
     prodGitHubAppClientId,
-    nonProdGitHubAppClientId,
+    ppeGitHubAppClientId,
+    devGitHubAppClientId,
+    localGitHubAppClientId,
     prodDnsName,
     ppeDnsName,
     devDnsName,
+    localDnsName,
 } from './tunnelServiceProperties';
 
 /**
@@ -33,7 +36,7 @@ export const staging = <ITunnelServiceProperties>{
     serviceUri: `https://${ppeDnsName}/`,
     serviceAppId: ppeFirstPartyAppId,
     serviceInternalAppId: ppeThirdPartyAppId,
-    gitHubAppClientId: nonProdGitHubAppClientId,
+    gitHubAppClientId: ppeGitHubAppClientId,
 };
 
 /**
@@ -43,7 +46,20 @@ export const development = <ITunnelServiceProperties>{
     serviceUri: `https://${devDnsName}/`,
     serviceAppId: devFirstPartyAppId,
     serviceInternalAppId: devThirdPartyAppId,
-    gitHubAppClientId: nonProdGitHubAppClientId,
+    gitHubAppClientId: devGitHubAppClientId,
+};
+
+/**
+ * Gets properties for the service when running locally.
+ *
+ * Uses the same service app IDs as the development environment, but a different
+ * GitHub app with localhost callback URLs.
+ */
+export const local = <ITunnelServiceProperties>{
+    serviceUri: `https://${localDnsName}/`,
+    serviceAppId: devFirstPartyAppId,
+    serviceInternalAppId: devThirdPartyAppId,
+    gitHubAppClientId: localGitHubAppClientId,
 };
 
 /**
@@ -64,6 +80,8 @@ export function environment(environmentName: string): ITunnelServiceProperties {
         case 'dev':
         case 'development':
             return development;
+        case 'local':
+            return local;
         default:
             throw new Error(`Invalid service environment: ${environmentName}`);
     }