Whatever the demos show, professional finance still runs on Excel — models, comps, portfolio sheets, board decks. Microsoft Copilot put an AI in every one of those cells. The remaining question is the oldest one in the workflow: where do the numbers come from? Copy-paste from websites was already a compliance incident waiting to happen before AI; now it is also the weakest link in an otherwise automated chain.
The Data Layer for Microsoft Workflows
The Eulerpool API feeds the whole Microsoft stack from one source: 100+ million data points — full statements, estimates, dividends, prices, macro — for 50,000+ global companies, as clean JSON that Excel, Power Query, Power BI, and Copilot Studio all consume natively.
- Excel and Power Query. Pull statement history or price series straight into sheets via web queries against documented REST endpoints — refreshable, auditable, no plugin lock-in.
- Copilot + MCP. Where Copilot supports MCP connectors, the Eulerpool MCP server exposes 250+ tools — so "update the comps tab with latest consensus estimates" becomes a sentence, not an afternoon.
- Copilot Studio agents. Enterprise teams building internal finance agents wire Eulerpool in as the market-data action layer, with licensing that explicitly covers AI usage.
- Power BI. Live dashboards on portfolio fundamentals and macro series, refreshed from the same API the models use — one source of truth across the office.
What Changes in Practice
- "Refresh every input tab in this valuation model with the latest quarterly figures."
- "Add a column with consensus revenue growth for each name in the portfolio sheet."
- "Build a dividend calendar for our holdings for the next quarter."
Each of these was an analyst-hour of copy-paste. With a data API behind Copilot, each is a prompt — and every figure carries source lineage, which is the difference between an AI convenience and an auditable process.
Cost Sanity
Legacy Excel data plugins ride on terminal licenses costing five figures per seat. Eulerpool starts free (100,000 calls/month), with production tiers from $99/month — for the whole team, not per seat. Get a key and put real data behind your Copilot.