12 September 2026 · Market Data · 4 min read
Our price-watch worker flagged a hash change on a pricing page this week that turned out to be bigger than a number update: polygon.io/pricing now redirects straight to massive.com/pricing. Same API, same keys, new name. Rebrands on a pricing page are exactly the kind of moment where a vendor slips a quiet increase past people who stop reading after the logo — so instead of taking the new page at face value, I compared it against what we had on file for Polygon.io before the switch.
Here's the Stocks Starter tier, which is the one most solo builders and small backtesters actually pay for:
| Polygon.io (pre-rebrand) | Massive.com (now) | |
|---|---|---|
| Starter | $29/mo | $29/mo |
| Free tier | 5 calls/min, EOD + 15-min delayed | 5 calls/min, EOD + 15-min delayed |
| Billing model | Per asset class (stocks/options/forex-crypto separate) | Per asset class — unchanged |
| API keys / endpoints | — | Same, no migration required |
Starter is identical to the cent. The two tiers above it, Developer at $79/mo and Advanced at $199/mo, also match what Polygon.io billed under its old name. The per-asset-class quirk that made a stocks+options bot pay for two subscriptions instead of one — still there, just under a different logo.
Nothing in the pricing itself explains it — this reads like a company-scope rebrand, not a monetization move. "Polygon" as a name collided with the unrelated Polygon (POL) blockchain often enough that it was a genuine support headache; "Massive" also signals a broader ambition than "the stock-data API" once it started adding options, indices and crypto feeds under one roof. I've watched enough of these in the API-pricing space to know the pattern that should worry you: quiet rebrand now, "simplified" pricing three to six months later that's rarely simpler for the customer. Stripe's Billing add-on, Twilio's per-channel pricing splits, and more than one AI vendor have all done a version of this. Massive hasn't done that yet — but "hasn't yet" is not the same as "won't."
If you already have a Polygon.io integration: nothing breaks, keys still work, and you're not being asked to re-price anything today. What I'd actually do is the boring, useful thing — screenshot or note today's tier prices somewhere outside the vendor's own dashboard, because "what did I sign up for" is exactly the question that's hard to answer six months after a rebrand if the old pricing page no longer resolves. If you're choosing a market-data API for the first time right now, the rebrand changes nothing about the underlying tradeoff we already covered: Massive/Polygon.io is the deepest option for tick-level and options data, at the cost of paying per asset class, while Finnhub's free tier (60 calls/min, real-time US quotes) is still the cheapest way to get live data for a personal project, and Alpha Vantage at $49.99/mo for 75 req/min sits in between on price with the broadest set of technical indicators.
I run this comparison and the underlying price registry as part of building APICostCalc's cost tools — next time a vendor's pricing page hash changes, that's what gets checked first: not just "is there a new number," but "is there a new company name hiding an old number, or a new number hiding behind an old name." For more on vendors that changed pricing without a rename, see APIs that quietly raised their prices.
Host your data pipeline: DigitalOcean — $200 free credit ↗ · Hostinger VPS ↗
Rates verified against massive.com/pricing and our internal price-watch snapshot of the pre-rebrand Polygon.io pricing page, last checked 2026-09-11. Reference estimates — confirm current tiers before budgeting, and enterprise/negotiated volume pricing isn't reflected here.