Very reliable. We use the API to run our own applications.
None. No paperwork, no login.
Yes. For free.
No limits. We throttle requests per IP, but you should get over 100 per second.
Yes. WebSockets. SSE on the way.
While we strive for 100% uptime, there are times when an outage may occur. Check our twitter status account (@IEXStatus) for updates.