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"Awesome response, as usual. It is a sincere and refreshing pleasure to do business with DTN, compared to your competition." - Comment from Ryan

"I just wanted to tell you what a fine job you have been doing. While *******, from what I hear, has been down and out, off and on, IQ feed has held like a champ this week." - Comment from Shirin

"You have an excellent product !!!!!!" - Comment from Arely

"I've been using IQFeed 4 in a multi-threaded situation for the last week or two on 2600 symbols or so with 100 simultaneous daily charts, and I have had 100% responsiveness." - Comment from Scott

"The service is great, I see a noticeable improvement in my volume profiles over [broker]'s data feed" - Comment from Larry

"I cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles

"I have been using IQFeed now for a few years in MultiCharts and I have zero complaints. Very, very rare to have any data hiccups or anything at all go wrong." - Comment from Public Forum

"If you are serious about your trading I would not rely on IB data for serious daytrading. Took me a while to justify the cost of IQ Feed and in the end, it's just a 2 point stop on ES. Better safe than sorry" - Comment from Public Forum

"I use IQ Feed, Great stuff as far as data analysis information, storage and retrieval is concerned." - Comment from Public Forum

"I have to tell you though that using the IQFeed API is about the easiest and cleanest I have seen for some time." - Comment from Jim

# Python v3.7.7
# Windows 10 x64
import sys
import clr

assembly_path = r"~my_path_to\IQFeed_CS"
sys.path.append(assembly_path)
clr.AddReference("IQFeed.CSharpApiClient")

from IQFeed.CSharpApiClient import IQFeedLauncher
from IQFeed.CSharpApiClient.Streaming.Level2 import Level2ClientFactory
from IQFeed.CSharpApiClient.Streaming import Level2
from IQFeed.CSharpApiClient.Streaming.Level2 import Messages
from IQFeed.CSharpApiClient.Streaming.Common import Messages

IQFeedLauncher.Start("my_id", "my_pw", "dev_id")

level2Client = Level2ClientFactory.CreateNew()

level2Client.Connect()

level2Client.ReqWatch("@BTC#")

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