feat: add fred mcp server

Author: stefanoamorelli

servers/fred/server.yaml

@@ -0,0 +1,23 @@
+name: fred
+image: mcp/fred
+type: server
+meta:
+  category: finance
+  tags:
+    - fred
+    - finance
+    - federal-reserve-economic-data
+    - economic-data
+    - financial-intelligence
+  highlighted: true
+about:
+  title: Federal Reserve Economic Data (FRED)
+  description: A community-developed MCP server for interacting with time series data provided by Federal Reserve Economic Data (FRED) database. Maintained by Stefano Amorelli.
+  icon: https://raw.githubusercontent.com/stefanoamorelli/fred-mcp-server/refs/heads/main/fred-mcp-server-logo.png
+source:
+  project: https://github.com/stefanoamorelli/fred-mcp-server/
+config:
+  secrets:
+    - name: fred_api_key
+      env: FRED_API_KEY
+      example: "<YOUR_API_KEY>"