Your IBM i Works 24/7.
Your Data Entry Team Doesn't.
Let AI Take Over the Green Screen.
AI-Powered Data Entry for IBM i — Live Tomorrow, No Code Changes
Invoice processing · Purchase order entry · RX claim workflows
LegacyBridge connects over a standard TN5250 session and enters data into your IBM i (AS/400) exactly like your operator does — but 24/7. No RPG changes. No software on your system. Live in one day.
Watch It Work
See each component of LegacyBridge in action. Auto-cycling through features.
System Cartographer
AI automatically discovers and maps your IBM i (AS/400) menu structure using breadth-first exploration. The resulting navigation graph enables intelligent routing between any two screens.
Don't Take Our Word for It
Voices from the IBM i community.
“I've spent 20 years helping companies get more out of their IBM i systems. The data entry problem never changes — it's slow, it's manual, and nobody wants the job. LegacyBridge is the first solution I've seen that works within the existing system instead of trying to replace it.”
Oscar Herrera
“The IBM i community is rightfully cautious about new tools touching production systems. LegacyBridge's audit chain and human review process is exactly how this should be done.”
Pascal Polverini
Polverini & Partners, IBM Champion
Your Production System. Our #1 Priority.
LegacyBridge connects through your existing VPN over a standard TN5250 session — the same way your operators do. It never touches your RPG code, never modifies system configurations, and never stores credentials on our side. Every keystroke is recorded in a SHA-256 audit chain so you can verify exactly what happened and when.
Inviolable Audit
SHA-256 Hash Chain
Every system action is cryptographically chained and immutable, preventing data tampering at the architecture level.
Active Monitoring
Continuous CSPM
Aikido scans our codebase and dependencies for vulnerabilities, with automated alerting for security issues.
Identity Control
Mandatory MFA
TOTP verification required for all administrative access. Session-level granularity for every agent.
Data Sovereignty
Your Data Never Leaves Your Network
No offshore teams handling your data. LegacyBridge processes screen data in memory through a secure tunnel — zero retention, nothing stored.
Start With One Workflow. See It Work Tomorrow.
Pick your most tedious data entry workflow. We'll connect over your existing TN5250 session and automate it — no code changes, no installation, no six-month project. If it doesn't work, you've lost a day, not a quarter.
Book a Demo
See LegacyBridge in action on an IBM i (AS/400) terminal session. 15 minutes, no commitment. We'll walk through your specific use case.
Pick a TimeSend Us Your Screen
Describe your IBM i (AS/400) screen. We'll record a personalized video showing LegacyBridge automating that exact workflow — delivered within 48 hours.
Or Just Say Hello
Frequently Asked Questions
How does IBM i data entry automation work?
LegacyBridge connects to your IBM i (AS/400) system over a standard TN5250 terminal session. It uses AI vision to read scanned documents, extract field values, and autonomously navigate green screen menus to enter data — exactly like a human operator, but faster and with built-in validation at every step.
Do I need to install software on my IBM i?
No. LegacyBridge requires zero installation on your IBM i system. It connects externally via TN5250, the same protocol your terminal emulators already use. No RPG changes, no API development, no system modifications.
What is TN5250 automation?
TN5250 is the standard protocol for connecting to IBM i (AS/400) terminal sessions over TCP/IP. TN5250 automation means programmatically interacting with green screen applications through this protocol — navigating menus, entering data into fields, and submitting transactions without manual typing.
How is LegacyBridge different from traditional RPA?
Traditional RPA tools record and replay mouse clicks on screen coordinates, which breaks when screens change. LegacyBridge uses AI vision to understand screen content semantically — it reads field labels, understands context, and adapts to screen variations. It also requires no desktop installation or local agents.
Can it handle high-volume operations?
Data entry runs one document at a time per terminal connection — that's an IBM i constraint. But you can run multiple LegacyBridge agents in parallel, each on its own terminal session. A shop processing 500 documents a day can run five agents simultaneously, each handling its own queue.
Is automated IBM i data entry audit-compliant?
Yes. Every action LegacyBridge takes is recorded in a SHA-256 cryptographic hash chain, creating an immutable audit trail. Each entry includes timestamps, field values, screen states, and the source document — built to meet SOC 2 and GDPR readiness requirements.