Products / OL AtomIQ
OL AtomIQ
Decompose a z/OS or IBM i monolith one piece at a time: analyze COBOL and RPG, find operations and domains, trace data lineage, and route cross-app calls as you decouple.
OL AtomIQ helps teams modernize a mainframe or IBM i monolith one piece at a time. It imports COBOL, RPG, copybooks, JCL, and screen maps from z/OS and IBM i, builds a graph of programs, data, and dependencies, and finds the business operations and domains inside it. Teams then decouple those domains into separate apps and route the remaining cross-app calls through a gateway, so each step is explicit, approvable, and reversible.

Key capabilities
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AS/400
AS/400 (IBM i) & RPGRun AtomIQ as a first-class IBM i platform: JT400 import, DB400, DSPF map preview, and RPG analysis pipeline alongside COBOL.
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COBOL
Data LineageTrace data from DB2 columns, IMS segments, and file fields through COBOL host variables across programs and copybooks.
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AI
Graph Assistant & MCPIn-app graph-aware AI chat plus a built-in MCP server so assistants can read and drive AtomIQ workspaces programmatically.
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COBOL
IMS COBOL and MFS mapsAnalyze IMS-DC COBOL and MFS maps in AtomIQ: preview device formats, classify CBLTDLI screen vs segment calls, and walk conversational UI flow from source.
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CICS
Interactive App ViewerDrag-and-drop canvas to organize programs into apps by business usage, visualize dependencies, filter, and persist workspaces.
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AI
Map UI analysis → Hub terminal Screens FlowFrom COBOL plus BMS or MFS maps, analyze the UI state machine in source. For CICS + BMS, build an OL Integration terminal Screens Flow. AtomIQ shows maps and analyzes source; it does not run a live terminal.
What it enables
OL AtomIQ helps teams modernize a mainframe or IBM i monolith one piece at a time. It imports COBOL, RPG, copybooks, JCL, and screen maps from z/OS and IBM i, builds a graph of programs, data, and dependencies, and finds the business operations and domains inside it. Teams then decouple those domains into separate apps and route the remaining cross-app calls through a gateway, so each step is explicit, approvable, and reversible.
Part of the OpenLegacy platform
Run it from one governed plane
Govern, deploy, and operate this product with the rest of the suite — managed or on-prem.