diff --git a/packages/core/src/agent/tools/data/finance/api.ts b/packages/core/src/agent/tools/data/finance/api.ts
index e869f655..8a2b01de 100644
--- a/packages/core/src/agent/tools/data/finance/api.ts
+++ b/packages/core/src/agent/tools/data/finance/api.ts
@@ -1,32 +1,16 @@
 /**
  * Financial Datasets API client.
  *
- * Base URL: https://api.financialdatasets.ai
- * Auth: X-API-KEY header
+ * Proxied through api-dev.copilothub.ai with auth headers (sid / device-id / os-type).
  * All endpoints use GET with query parameters.
  */
 
-import { credentialManager } from "../../../credentials.js";
+import { getLocalAuth } from "../../../../hub/auth-store.js";
 
-const BASE_URL = "https://api.financialdatasets.ai";
+const BASE_URL = "https://api-dev.copilothub.ai";
+const PATH_PREFIX = "/api/v1/financial";
 const TIMEOUT_MS = 30_000;
 
-function getApiKey(): string {
-  // 1. credentials.json5 → tools.data.apiKey (preferred)
-  const toolConfig = credentialManager.getToolConfig("data");
-  if (toolConfig?.apiKey) return toolConfig.apiKey;
-
-  // 2. Fallback: env var (skills.env.json5 or process.env)
-  const envKey = credentialManager.getEnv("FINANCIAL_DATASETS_API_KEY");
-  if (envKey) return envKey;
-
-  throw new Error(
-    "Financial Datasets API key not configured. " +
-      'Set it in ~/.super-multica/credentials.json5 under tools.data.apiKey, ' +
-      "or set FINANCIAL_DATASETS_API_KEY in ~/.super-multica/skills.env.json5.",
-  );
-}
-
 /**
  * Fetch data from the Financial Datasets API.
  *
@@ -39,9 +23,14 @@ export async function financeFetch<T = Record<string, unknown>>(
   params: Record<string, string | string[] | number | boolean | undefined>,
   signal?: AbortSignal,
 ): Promise<{ data: T; url: string }> {
-  const apiKey = getApiKey();
+  const auth = getLocalAuth();
+  if (!auth) {
+    throw new Error(
+      "Not logged in. Please sign in via the Desktop app to use financial data tools.",
+    );
+  }
 
-  const url = new URL(path, BASE_URL);
+  const url = new URL(PATH_PREFIX + path, BASE_URL);
   for (const [key, value] of Object.entries(params)) {
     if (value === undefined || value === null) continue;
     if (Array.isArray(value)) {
@@ -61,8 +50,10 @@ export async function financeFetch<T = Record<string, unknown>>(
   const res = await fetch(url.toString(), {
     method: "GET",
     headers: {
-      "X-API-KEY": apiKey,
       Accept: "application/json",
+      sid: auth.sid,
+      "device-id": auth.deviceId,
+      "os-type": "3",
     },
     signal: combinedSignal,
   });