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Date/Time: Tue, 17 Jun 2025 04:47:52 +0000



DTC Async Client

View Count: 257

[2025-04-11 16:14:57]
User968272 - Posts: 1
Hi,

I'm currently developing a Python application for automated trading. I'm trying to connect to SierraChart via DTC to get market data. I'm recieving the following lines:

{"Type": 2, "ProtocolVersion": 8, "Result": 1, "Integer_1": 0, "MarketDepthUpdatesBestBidAndAsk": 0, "TradingIsSupported": 1, "OCOOrdersSupported": 1, "OrderCancelReplaceSupported": 1, "SecurityDefinitionsSupported": 1, "HistoricalPriceDataSupported": 0, "ResubscribeWhenMarketDataFeedAvailable": 0, "MarketDepthIsSupported": 1, "OneHistoricalPriceDataRequestPerConnection": 0, "BracketOrdersSupported": 1, "UsesMultiplePositionsPerSymbolAndTradeAccount": 0, "MarketDataSupported": 1, "ResultText": "Connected to SC DTC Protocol server. Service=scdataallservices|SymbolSettings=scdataallservices", "ReconnectAddress": "", "ServerName": "SC DTC Server. Build=52844", "SymbolExchangeDelimiter": ""}

{"Type": 103, "SymbolID": 1, "RejectText": "Market data request not allowed"}

I can see that "MarketDataSupported": 1 however the request is being rejected for requesting live data.

I'm currently developing on the SC Data service, however I will be using CQG WebAPI for Production.

Is Market Data blocked in SierraChart or is this due to the data provider? I have tried Futures and Forex but have the same result for both.
[2025-04-11 16:36:22]
Sierra_Chart Engineering - Posts: 19938
Yes the market data is not accessible. Refer to:
Data and Trading Communications (DTC) Protocol Server: Restrictions
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy:
https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation

For the most reliable, advanced, and zero cost futures order routing, use the Teton service:
Sierra Chart Teton Futures Order Routing

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