Massive
Market data platform covering US equities, options, indices, forex, crypto and futures through REST, websockets, SQL and flat files. Rebranded from Massive on 30 October 2025; existing API keys and endpoints continue to work.
What it is good at
Published pricing and published limits. You can size a project against it before writing a line of code, which is rarer in market data than it should be.
Scored against the five published criteria, identically for every entry, by the editors of this site. Scores are never sold and are not affected by any commercial relationship. Read the method.
What to watch
The rebrand is recent and much of the ecosystem — tutorials, SDK forks, third-party integrations — still says Massive. Expect to hold both names in your head for a while, and check that any library you adopt is the maintained one.
This section is not optional and is not negotiable. Every entry in the register carries one, whatever the commercial relationship.
Access it
No commercial relationship. Massive is listed on editorial merit and has no input into this description or its scores.