Create app.js

app.js

@@ -0,0 +1,23 @@
+async function send() {
+  const key = document.getElementById("apiKey").value;
+  const model = document.getElementById("model").value;
+  const prompt = document.getElementById("prompt").value;
+
+  const res = await fetch("https://openrouter.ai/api/v1/chat/completions", {
+    method: "POST",
+    headers: {
+      "Authorization": "Bearer " + key,
+      "Content-Type": "application/json",
+      "HTTP-Referer": "https://example.com"
+    },
+    body: JSON.stringify({
+      model,
+      messages: [{ role: "user", content: prompt }],
+      temperature: 0.7
+    })
+  });
+
+  const data = await res.json();
+  document.getElementById("response").textContent =
+    data.choices?.[0]?.message?.content || JSON.stringify(data, null, 2);
+}