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System · Internal & Legacy

Let any AI agent take governed actions in AS/400 & Mainframe

AS/400 & Mainframe is the green-screen systems still quietly processing core transactions in banks, insurers, and manufacturers. Upware lets your agents act in it safely — deterministic, policy-bounded, and fully audited, without changing the system.

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Governed by policy & RBAC Full audit trail Outbound-only on-prem bridge No rip-and-replace
The problem

Why agents stall at AS/400 & Mainframe

The green screen never died. In banking, insurance, and manufacturing, AS/400 and mainframe systems still process the transactions the business runs on. They predate the API economy entirely — and replacing them isn't on anyone's roadmap. The work still has to get done, and increasingly, an AI agent is being asked to do it.

Terminal, not API
Interaction is 5250/3270 terminal screens and job control — there is no API surface to integrate against.
Decades of embedded logic
Critical business rules are encoded in programs written long ago that no one is rewriting.
Zero tolerance for error
These systems clear payments and bind policies; an action here must be exact, bounded, and auditable.
What you unlock

Actions Upware makes safe in AS/400 & Mainframe

Drive transactions through terminal screens
Read balances, policies, and records
Enter and update data within strict controls
Hand off outcomes to modern systems
Log every interaction for audit
The harness

AI to learn. Deterministic to execute.

Upware learns the process once and encodes it as a mostly-deterministic workflow: system interactions replay exactly, and any LLM steps are wrapped in policy, verification, and audit — so execution stays governed and drift-proof.

O
Observe & Learn
Records the real workflow once, across every system it touches.
G
Generate
Builds the API, data flow, and logic automatically — no integration project.
E
Encapsulate
Wraps it as a governed AI skill over secure MCP or API.
R
Run
Executes deterministically — RBAC, audit, and scale built in.
Connect your agent

Agents that act in AS/400 & Mainframe with Upware

ServiceNow Now Assist
How ServiceNow Now Assist acts in AS/400 & Mainframe, safely.
Amazon Q
How Amazon Q acts in AS/400 & Mainframe, safely.
All agents
Browse every AI agent Upware harnesses.
FAQ

Common questions

Can an AI agent safely write to AS/400 & Mainframe?
On its own, not safely — Core financial systems are governed by SOX, BSA, and insurance regulation; actions need strict limits, attribution, and audit. Upware sits between the agent and AS/400 & Mainframe, enforcing permissions and policy before any write and recording every action.
Do we need AS/400 & Mainframe's API for this?
Not necessarily. Upware learns the workflow through the API when one exists, and through web requests, shell, or the UI when it doesn't — so even gaps in AS/400 & Mainframe's API are covered.
How long does it take to enable actions in AS/400 & Mainframe?
Days, not an integration project. Upware records the workflow once, generates the logic, and exposes it as a governed action your agent can call.

Put your agents to work in AS/400 & Mainframe

See how Upware turns a recorded workflow into a governed action in days.

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