Hi @nikkoteen2001, There is Tick History API which provides historical intraday data using REST API and JSON format. The data itself, depending on the API and size is delivered in compressed file formats.
Please contact Refinitiv to get in touch with an account manager and more details on the API and pricing.
Tick History Intraday summaries is time bar (conflated) data from trade and quote messages ranging from 1 second to 1 hour intervals. For introduction of TRTH REST API, please see Video introduction to the TRTH REST API . To retrieve Intraday summaries, you can refer to REST API Tutorial 6: On Demand intraday bars extraction