Mainframe → AI, safely
Legacy to AI
one process at a time
Turn decades of legacy systems into the foundation enterprise AI needs — no disruption, no rewrites, no guesswork.
Start with your most complex system or go all the way to full modernization.
Trusted by teams modernizing the world's most critical systems
The OpenLegacy platform
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OL HubGovern, deploy, and operate the OpenLegacy suite (SaaS or unified OnPrem) with shared identity, API keys, access control, AI, and MCP.
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OL GeneRun natural-language agent workflows across APIs and MCP tools from one governed Co-pilot control plane.
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OL CoreIQBrowse, test, and turn IBM Z and IBM i assets (VSAM, DB2, CICS, IMS, and IBM i programs) into secure REST APIs and change events from one browser workbench.
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OL AtomIQDecompose 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.
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OL IntegrationTurn mainframe, IBM i, and on-prem programs, transactions, screens, and databases into tested APIs and events: connect, design contracts and flows, generate, deploy, and monitor without changing the host.
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OL DataIQOne workspace for DB2, DB2 for i, IMS DB, Oracle, SQL Server, PostgreSQL, MySQL, and MongoDB: query with AI help, copy test data, migrate VSAM and IMS into SQL, and turn queries into APIs.
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OL SpecGenerate specifications, documentation, and modernization blueprints from legacy systems with AI.
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OL TermIQSee how 3270 and 5250 applications are really used: record sessions, catalog screens, identify and measure business operations, alert when activity matches a rule, and turn real journeys into terminal screens flows for APIs.
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OL TerminalGive teams instant browser access to 3270 and 5250 terminal screens without desktop emulators, not map descriptors or remote BMS/MFS hosts.
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OL NextMove COBOL and RPGLE screen and RPC programs (CICS/BMS, IMS/MFS, IBM i/DSPF) off the host as runnable code on the JVM, validate them in the browser, and expose them as REST APIs while data stays on the host.
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OL CodeA browser IDE for COBOL and RPG on IBM Z and IBM i: browse, edit, compile, and test programs, convert screen programs into RPC services, and generate clients that call REST APIs.
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OL AppIQBuild enterprise applications, integrations, workflows, and digital experiences with AI-assisted development on OpenLegacy assets.
Modernize Legacy - How can we support you?
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FIG 01
Discover & Plan
Map code, dependencies, processes and domains
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FIG 02
Decouple Logic
Turn screens and code logic into stateless, API-ready services.
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FIG 03
Modernize Data
Expose and migrate VSAM, IMS, DB2 and IBM i data
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FIG 04
Synchronize Data
Replicate change in real time or batch with ETL and CDC.
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FIG 05
Build Modern Apps
Create modern UIs from screens, APIs and industry templates
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FIG 06
Enable AI Agents
Connect AI agents to legacy, code and data through MCP.
Modernize without compromise
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01
Agentic Mainframe DevelopmentAn agentic, context-aware workspace for z/OS mainframe teams to understand, change, document, and API-enable COBOL, CICS, IMS, DB2, and VSAM applications with AI grounded in the real code base.
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02
API IntegrationTurn mainframe and IBM i programs, screens, transactions, and data into governed APIs and events without rewriting the core.
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03
AS/400 (IBM i) ModernizationOne path for IBM i shops: browser 5250 access, RPG and DSPF analysis, governed APIs, and RPGLE that runs off the host.
Global enterprises modernize critical systems faster
with no disruption.
Citi connected legacy host systems to modern cloud-based treasury and payment services without disruptive core changes.
Grupo Herdez exposed IBM i RPG, CL, and DB2 functions as cloud-native services and deployed them to Google Cloud Application Integration in one day.
Globe Life launched Customer Portal 2.0 with real-time mainframe connectivity from 3270 screens — on schedule, without refactoring z/OS and z/VSE cores.
Monprix taps Openlegacy...
Built for industries where downtime is not an option
Ready to see it in your environment?
Bring your most complex legacy system. We'll show you a live path from mainframe to AI-ready APIs — in your stack, on your terms.















