[_benj]

why is there so little info on their site?

I'm tempted to use a throwaway email to see what is it because from their landing page there's very little that would make me trust them, specially when I know how expensive that data traditionally is.

How can you provide it for free? how "real time" it is? Where is the data coming from? NASDAQ? a broker?

I'm quite curious but the sparsity of the site makes me dubious

[ThePlugJumbo]

Yes, its comming from NASDAQ and the NYSE. Your welcome to try the API endpoint at https://www.styvio.com/api/aapl with no signup required!

[no_circuit]

I don't see a TOS page on the site. Where is its (corporation?) owner domiciled? I can appreciate the hustle of bootstrapping a site, but how can anyone know the site has appropriate redistribution agreements in place with those exchanges? Can you cite feed and/or entitlement names that you are redistributing from NASDAQ for example? I wouldn't want to invest time writing against an API that could get shutdown without warning due to misuse of an upstream source.

[justshowpost]

When it can't match the ticker from request, it returns randomly selected from {FB, TSLA, AAL, AAPL, MSFT}

https://www.styvio.com/api/nada

[_benj]

Thanks for pointing that out. Would you mind expanding a little into the real time aspect of the API?

Does that includes order and Level 2?

[ThePlugJumbo]

Not yet, we are currently in the process of adding those features, as well as dark pool order data, and options data!

[nerdwaller]

Where are you getting dark pools from? That’s usually intentionally not publicly visible.

[ThePlugJumbo]

It is visible a day or two after, and FINRA provides an API to access the data. We plan on working with FINRA to add dark pool data to our API and visualizer tools.

[nerdwaller]

Oh that's interesting, I'll have to take a look. So far most of what I want is available from TD Ameritrade's API, which while it isn't pretty, it does work pretty well.