Chart data is available via the T4 API. To access chart data, the user must have the ‘Charting’ role enabled via the user setup on the admin website and your application must be enabled for chart data by CTS as well.
Types of Chart Data
Requesting Chart Data for a Market
Processing Chart Data
Checking Processed Dates
Requesting Market Data for a Contract
Requesting Trade Volumes for all Markets of a Contract
Chart Data Caching and Queuing