diff --git a/config.php b/config.php
index e935829..8eca2a8 100644
--- a/config.php
+++ b/config.php
@@ -4,19 +4,25 @@ return [
 
     /*
     |--------------------------------------------------------------------------
-    | MCP Portal Domain
+    | MCP Portal Domain(s)
     |--------------------------------------------------------------------------
     |
-    | The domain where the MCP Portal is served. This hosts the server registry,
-    | documentation, and discovery endpoints for AI agents.
+    | The domain(s) where the MCP Portal is served. Routes are registered for
+    | each domain in the 'domains' array.
     |
     | Production: mcp.host.uk.com
-    | Local dev:  mcp.host.test (Valet)
+    | Local dev:  mcp.host.test, mcp.lthn.test (Valet)
+    |
+    | Set MCP_DOMAINS as a comma-separated list for multiple domains.
     |
     */
 
     'domain' => env('MCP_DOMAIN', 'mcp.'.env('APP_DOMAIN', 'host.uk.com')),
 
+    'domains' => array_filter(array_map('trim', explode(',',
+        env('MCP_DOMAINS', env('MCP_DOMAIN', 'mcp.'.env('APP_DOMAIN', 'host.uk.com')))
+    ))),
+
     /*
     |--------------------------------------------------------------------------
     | Registry Path