diff --git a/examples/dexa-mfm/src/index.ts b/examples/dexa-mfm/src/index.ts
index c756125..f490b4d 100644
--- a/examples/dexa-mfm/src/index.ts
+++ b/examples/dexa-mfm/src/index.ts
@@ -6,6 +6,7 @@ import pkg from '../package.json'
 
 export interface Env {
   DEXA_API_BASE_URL: string
+  ENVIRONMENT: string
 }
 
 const router = OpenAPIRouter({
diff --git a/examples/dexa-mfm/src/routes.ts b/examples/dexa-mfm/src/routes.ts
index 1f0ed9e..0d554d1 100644
--- a/examples/dexa-mfm/src/routes.ts
+++ b/examples/dexa-mfm/src/routes.ts
@@ -66,7 +66,7 @@ export class DexaSearch extends OpenAPIRoute {
       return new Response('invalid source IP', { status: 500 })
     }
 
-    if (!isValidChatGPTIPAddress(ip)) {
+    if (env.environment === 'production' && !isValidChatGPTIPAddress(ip)) {
       // console.warn('search error invalid IP address', ip)
       return new Response(`Forbidden`, { status: 403 })
     }
diff --git a/examples/dexa-mfm/wrangler.example.toml b/examples/dexa-mfm/wrangler.example.toml
index 67eaf9f..9077438 100644
--- a/examples/dexa-mfm/wrangler.example.toml
+++ b/examples/dexa-mfm/wrangler.example.toml
@@ -3,4 +3,10 @@ main = "src/index.ts"
 compatibility_date = "2023-04-04"
 
 [vars]
-DEXA_API_BASE_URL="TODO"
\ No newline at end of file
+vars = { DEXA_API_BASE_URL="TODO", ENVIRONMENT="dev" }
+
+[env.staging]
+vars = { DEXA_API_BASE_URL="TODO", ENVIRONMENT = "staging" }
+
+[env.production]
+vars = { DEXA_API_BASE_URL="TODO", ENVIRONMENT = "production" }