Market Data Avis 

Reliable, good quality feed, good documentation.

Realtime data for options is great! Greeks as well

I've be trying out Market Data for a month now, I use it to update option pricing to see how my current positions are doing. I trade options on up to 30 positions at a time, so having option pricing updated automatically in Google Sheets is a real time saver, and helps me make faster, more informed trades. Market Data also helps me pinpoint the best available stocks for my option trades, with automated option pricing I am able quickly see which trade provides the best potential returns. That is invaluable!

It has been great to have the information I need uploaded to Google Sheets from Market Data automatically, it is a bit slow, wish the data would load quicker, but while I wait I can be productive in other tasks.

I recommend Market Data for helping to automate your trading data on Google Sheets so you can spend time doing more productive work, like company research, keeping up on news for your positions, and other activities necessary to be successful trading options.

I like the availability of many attributes to options quotes and historical data.
The only complaint I have now is that the refreshing the quotes is a slow process, it can take up to 30 seconds to download quotes for 50 tickers.
I also wish there was a way I could automate the refresh process every certain time period. Otherwise, great product.

I've been developing a custom indicator that needs a different data source than my trading platform provides. After trying several other options that were either ineffective or extremely expensive I found Market Data and they have delivered at a price that makes sense.

The few issues we ran into were quickly resolved by their courteous support staff. There is only one thing they can't provide yet, but it's coming in the near future which will make them my one stop shop for market data.

MarketData delivers much more data compared to higher-priced options. Where else can you get 100,000 endpoints PER DAY at this price point? They deliver on everything the website says with no surprises. Very clear documentation as well.

The amount of consumed credit per API Call are sometimes not affordable in relatively big app I maid.
I need other subscription option to fit my need.
That would be a kind of the hybrid of limited calls and unlimited calls.

First of all, the responsiveness from Market Data with setup questions I had was extraordinary. The excellence of the culture is obvious from the top on down. Every company Ive built has been based on the simple mantra of responsiveness and its makes a huge difference to the client. Fabulous and the product works!

Love the access to the data. The only issue I have at the moment is performance during market hours. It's not terrible for what I need it to do (getting data into excel). Just wish it was faster

Like the rest services, performance can be a little slow

Customer service is very responsive and answered all my questions.

The data I am able to gather in my tracking spreadsheets has been very insightful. Marketdata has made it so simple to collect market price action on options spreads that is not available anywhere.

Performs as expected. However, would like to have cryptos and technical indicators. Also greeks in options data.

Easy to pull data into Google Sheets, solid API documentation and fast reponse from support the one time I needed help. So far so good!

It is an easy to use API. They have reasonable prices. I am happy.

Good product. I do have occasions when formula is correct and I get an error message ... only to see, a short time later, that data has populated.
All in all, though, I'm very satisfied to have the capacity to do market analysis more efficiently than having to download from an outside source.

Why not show on the menu when the last update occurred. Thad would help manage the refreshments of my data more easily.

So far we have had a great experience with the implementation. After having tried several data providers, this is the best by far. We cant wait for the News section to be available.

This is exactly the service that small investors have needed badly. A reliable, fast, affordable source for real-time stock and options quotes along with quite a few other nice perks. The continued development of this service would be a huge boost for individual stock traders.