diff --git a/README.md b/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..b1f0f85963e747c0423ef3665d7144366ba9d8d4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,7 @@
+# Helicone Proxy Service
+
+This project provides a proxy service designed to forward requests to either the Helicone API or the OpenAI API based on the request characteristics and the provided authorization tokens.
+
+## Usage
+
+To use this proxy replace `https://api.openai.com/v1` with  `https://worker.hedenstroem.com/helicone-proxy/v1` when configuring the OpenAI Base URL.
diff --git a/src/index.ts b/src/index.ts
index b18da2aeb83c62f3a848284bf6921544c39354a8..2abb5d6fb3db813d1d6ab8ce4c51ab16f0767085 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -38,13 +38,12 @@ export default {
 
 		// Add your custom header to the request
 		modifiedRequest.headers.set("Host", url.hostname);
-		modifiedRequest.headers.set("Helicone-Auth", "Bearer " + env.HELICONE_KEY);
-
-		// Make the fetch request with the modified request
-		const response = await fetch(modifiedRequest);
+		if (url.hostname === "oai.hconeai.com") {
+			modifiedRequest.headers.set("Helicone-Auth", "Bearer " + env.HELICONE_KEY);
+		}
 
 		// Return the response from the target server
-		return response;
+		return fetch(modifiedRequest);
 
 	},
 };