The API most people's first script talks to — free key, wide coverage, hard rate limits.
$50/mofree tier
Every tool in the catalogue
3 products, each filled in against the same schema as its neighbours. Cards marked hands-on were used with our own keys, not summarised from a landing page.
3 of 3
Full-tick US equities, options and forex from a direct exchange feed.
$29/mofree tier
The Python library everyone starts with — free, unofficial, and not something to build on.
Freefree tier