Expose VSAM data as secured CoreIQ REST APIs
Need fresh mainframe data without slow, manual extraction? OpenLegacy CoreIQ helps teams browse VSAM and other mainframe datasets, apply COBOL layouts, curate approvals, and publish dataset content for REST consumers.
Understand dataset content in the browser
Search dataset catalogs by filter pattern, inspect raw records in hex view, and review record boundaries without leaving the CoreIQ workbench.
Turn copybooks into usable layouts
Paste or upload COBOL copybooks, including multi-member sources, then associate them with datasets so teams can view structured records instead of raw bytes.
Reuse and govern dataset models
Select an existing catalog record layout, manage nested REDEFINES with lock, delete, and unlock controls, and save pending layout changes for review.
Publish for REST consumers
Move from inspected dataset content to approved catalog associations and REST API access, giving downstream applications a cleaner path to mainframe data.
How VSAM dataset exposure works
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Browse
Use OL-DS-SERVER for remote OpenLegacy Data Server access, or OL-DS-LOCAL when CoreIQ runs on z/OS, to search catalogs and open dataset content.
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Associate
Attach COBOL copybooks or select an existing model from the Datasets catalog to create a structured view of the records.
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Curate
Resolve nested REDEFINES, use the task list to guide analysis, and manage pending associations through the approval workflow.
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Publish
Expose approved dataset content through CoreIQ REST APIs for modern applications and integration consumers.
Give teams faster access to fresh mainframe data
CoreIQ reduces the friction between VSAM data, COBOL layouts, and API-ready access—so modernization teams can inspect, validate, and publish with more confidence.
Ready to expose VSAM data through CoreIQ?
Explore the VSAM dataset browse, layout, and API feature.