Simple Data Integration
Overview
A financial analytics client needed real-time market and options data inside Excel — without exposing API keys or relying on manual data exports. Their analysts used spreadsheets for modeling but lacked a secure, automated way to connect to live data feeds.
Our Solution
Analytic Strategies built a custom Excel add-in powered by a secure Cloudflare proxy API, delivering live financial data directly into Excel with one click.
The add-in used simple formulas like:
=ADDIN.Daily.PrevClose("AAPL241025P00230000") to pull and refresh data automatically, while the proxy layer handled authentication, caching, and rate-limit control.
All API keys were protected at the edge, ensuring data integrity and enterprise-grade security.
Impact
The new add-in transformed Excel from a static workbook into a live analytics environment, empowering analysts to explore options data securely, efficiently, and with zero manual steps.
Real-time market & options data directly in Excel
100% API key protection via proxy authentication
Faster analysis with auto-refresh and dynamic tables
Reusable, scalable architecture for future data sources