Clinical Extract is capable of retrieving research information from any electronic health record system equipped with a certified bulk FHIR API, including platforms like Epic, Oracle Health (Cerner), athenahealth, eClinicalWorks, MEDITECH, NextGen, and Veradigm. This tool operates within your own infrastructure as a SMART Backend Services client, utilizing read-only permissions, and facilitates the export of only the designated study group via a Group $export, transforming NDJSON into a comprehensive CSV complete with a data dictionary that identifies the FHIR element corresponding to each column. Importantly, patient information remains securely within your environment. Designed specifically for cancer and clinical registries, it accommodates coded case and abstraction fields in accordance with the NAACCR layout, as well as meeting the needs of research informatics teams and honest brokers by providing study-specific pulls paired with an IRB-compliant data dictionary, and assisting research sites with clinical trial feasibility assessments based on coded criteria. Among its notable features are a cohort builder, roster extraction using FHIR $match, the generation of the CSV and data dictionary, and a specialized oncology perspective that presents biomarkers and TNM stage as clearly labeled columns, ensuring ease of analysis. This comprehensive approach enhances the accessibility and usability of critical health data for various research applications.