Polygon.io Alternative: ROIC.AI vs Massive (Polygon io)
TLDR: Polygon.io, now branded Massive, is one of the best market-data APIs on the planet, tick trades and quotes, real-time WebSockets, flat-file bulk delivery, options, futures, forex, and crypto. But it is a price-and-market-data product first.
Its fundamentals are a US-only "Financials & Ratios" add-on, it has no earnings call transcripts, no returns-on-capital depth, and its individual plans are restricted to non-professional use.
ROIC.AI is the fundamentals-first Massive / Polygon.io alternative: 90+ ratios with a true ROIC focus, worldwide normalized statements, and transcripts on every plan including free, plus a native MCP server for AI agents. Trusted by 29,000+ investors, quants, and fintech builders.
→ Get your free API key, worldwide fundamentals, ratios, and transcripts, no credit card.
If you came to Polygon/Massive for company fundamentals rather than price ticks, ROIC.AI is built for exactly that job, globally, and at a lower commercial cost.
ROIC.AI vs Massive (Polygon.io) at a glance
Dimension | ROIC.AI | Massive (Polygon.io) |
|---|---|---|
Product focus | Company fundamentals & valuation | Market & price data (trades, quotes, aggregates) |
Fundamentals depth | Income statement, balance sheet, cash flow (annual, quarterly, TTM), worldwide | "Financials & Ratios" add-on, US |
90+ financial ratios | ✅ Profitability, credit & debt, liquidity, working-capital, yield, valuation | ⚠️ Standard ratios add-on |
ROIC / returns-on-capital focus | ✅ Core product | ⚠️ Not a focus |
Earnings call transcripts | ✅ Every plan, incl. free | ❌ Not in catalog |
Global coverage | ✅ Worldwide (90,000+ companies, 100+ countries) | ⚠️ US equities on these plans |
Free tier | $0, worldwide fundamentals + transcripts | $0 Stocks Basic, US, 5 req/min, EOD |
Fundamentals entry price | $29/mo, worldwide, 300 req/min | $29/mo Financials & Ratios, US, no transcripts |
Commercial / pro use | Enterprise from $600/mo | Individual plans are non-pro only; business pricing required |
AI / MCP-ready | ✅ Native MCP server | ❌ No MCP server |
Real-time, tick, options, futures | EOD today; real-time (WebSocket) rolling out | ✅ Best-in-class, tick, real-time, options, futures, flat files |
Sources: ROIC.AI pricing and the live ROIC.AI API, and Massive pricing, accessed 2026-06-17.
→ Start free and pull AAPL fundamentals in one request.
Where ROIC.AI wins for fundamentals investors
1. Fundamentals are the product, not an add-on
On Massive, company financials are a "Financials & Ratios" product, US-only, sold either standalone at $29/mo or bundled into the $199/mo Stocks Advanced plan. ROIC.AI is built around fundamentals: statements, ratios, valuation, and transcripts are the core, worldwide, on every plan. Same $29 entry price, very different depth and reach.
2. A real ROIC and returns-on-capital engine
ROIC.AI is named after the metric value investors care about most. The profitability endpoint returns ROIC, return on capital, ROE, ROA, margins, effective tax rate, payout, and sustainable growth, pre-computed period over period. Massive's ratios are a standard set attached to a market-data feed, not a returns-on-capital toolkit.
3. 90+ ratios and metrics, organized for analysis
Across six endpoint families, ROIC.AI ships 90+ ready-to-use ratios and metrics:
Profitability: ROIC, ROE, ROA, margins, tax rate, payout, sustainable growth
Credit & debt: net/total debt to EBITDA, debt to equity/capital/assets, interest coverage
Liquidity: current, quick, cash ratios, cash-flow-to-liabilities, Altman Z-Score
Working capital: turnover and days, cash conversion cycle
Yield: free-cash-flow yield, shareholder yield, capital yield
Valuation: EV, EV/EBITDA, EV/Sales, P/E, P/B, P/S, P/FCF, per-share data
4. Worldwide fundamentals and transcripts
ROIC.AI serves worldwide fundamentals on every plan including free, 90,000+ companies across 100+ countries, normalized to USD, plus earnings call transcripts (list, latest, by quarter). Massive's individual plans cover US equities and its catalog does not include earnings call transcripts. For global, transcript-driven, fundamentals research, that is the difference.
5. Lower cost for commercial use
Massive's individual plans are marked non-professional use only; commercial and professional use moves you to business pricing. ROIC.AI offers a commercial-use Enterprise license from $600/mo (sites up to 5,000 daily unique visitors), $1,000/mo up to 10,000, with multi-user access and invoicing.
6. AI- and MCP-ready out of the box
ROIC.AI ships a native MCP server, so Claude or any MCP-capable agent can call statements, ratios, transcripts, and valuation directly. Massive does not offer an MCP server.
Where Massive (Polygon.io) is genuinely stronger
Credit where it is due. For price and market data, Massive is best-in-class: real-time and historical trades and quotes, tick-level granularity, second and minute aggregates, WebSocket streaming, flat-file (S3) bulk delivery, and coverage across stocks, options, indices, currencies, and futures, at serious scale.
If you are backtesting, building trading infrastructure, or need real-time multi-asset price feeds, Massive is the stronger choice, and that is an honest call.
But if your work lives in company fundamentals, ratios, valuation, and transcripts, especially globally, that market-data firepower is not what you need. ROIC.AI is purpose-built for fundamentals and value investing.
Who should switch to ROIC.AI
Value & fundamentals investors screening on ROIC, margins, and returns on capital.
Quants & researchers who need clean, normalized global statements and ratios, not just US price data.
Fintech builders who want worldwide fundamentals and transcripts, with affordable commercial licensing.
AI builders wiring fundamentals into agents via MCP.
If you need real-time tick data, options, futures, or flat-file market data, Massive (Polygon.io) is the better fit.
→ Get your free API key, the best Polygon.io / Massive alternative for fundamentals- and ROIC-focused investors.
FAQ
Is ROIC.AI a good Polygon.io (Massive) alternative?
Yes, for fundamentals. Massive is a market-data API first; its company financials are a US-only "Financials & Ratios" add-on with no earnings call transcripts. ROIC.AI provides worldwide statements, 90+ ratios with an ROIC focus, and transcripts on every plan including free, plus a native MCP server, which Massive does not offer.
ROIC.AI vs Massive pricing, which is cheaper for fundamentals?
Both start fundamentals at $29/mo, but they are not the same. Massive's $29 Financials & Ratios is US-only with no transcripts; ROIC.AI's $29 Individual plan is worldwide with transcripts at 300 requests/min. For commercial use, Massive's individual plans are non-pro only and require business pricing, while ROIC.AI Enterprise starts at $600/mo.
Does Massive (Polygon.io) have earnings call transcripts?
Massive's catalog centers on market data plus a Financials & Ratios product; earnings call transcripts are not part of its plans. ROIC.AI includes transcripts on every plan, including free.
Does ROIC.AI cover international stocks?
Yes, worldwide on every plan including free: 90,000+ companies across 100+ countries, normalized to USD. Massive's individual plans cover US equities.
What does Massive (Polygon.io) do better than ROIC.AI?
Price and market data. Massive offers real-time and tick-level trades and quotes, WebSockets, flat-file bulk delivery, and coverage across stocks, options, indices, currencies, and futures. ROIC.AI is focused on fundamentals and is end-of-day today, with real-time via WebSocket on the roadmap.
Can I use ROIC.AI with AI tools and agents?
Yes. ROIC.AI provides a native MCP server, so Claude and other MCP-compatible agents can query statements, ratios, valuation, and transcripts directly. Data is also available as JSON over REST at api.roic.ai/v2.