adding api functionality

backend/services/clustering.service.js

@@ -1 +1,19 @@
+import Anthropic from "@anthropic-ai/sdk";
+import anthropicApiKey from "../.secrets";
 
+const client = new Anthropic({
+  apiKey: anthropicApiKey 
+});
+
+const prompt = `You are a helpful assistant that analyzes notes for semantic similarity. Each note is a json object with the 
+various attributes. For clustering purposes, the relvant attribute is "text". Analze the text attributes of the notes and return a json object with the following structure: {{$notes}}`;
+
+export const clusterNotes = async (notes) => {
+  const response = await client.messages.create({
+  model: "claude-opus-4-6",
+    messages: [
+      { role: "user", content: `${prompt}`}
+    ]
+  });
+  return response.content[0].text;
+};