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Real-time and historical data from all US exchanges, dark pools and OTC markets plus options, indices, currencies and futures, over REST, WebSocket and SQL; polygon.io now 301-redirects to massive.com, so buyers searching the old name land here.

Made by

Massive

Primary category

Market data

Also listed under

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Built for

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Firm size

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Deployment

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Pricing model

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What it costs

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How we verified it

Confirmed on the vendor's own site

Source

the page we read

Last checked

2026-08-29

On the vendor's site

open

What practitioners say

Questions and notes