The green screen
keys itself now.
So nobody else
has to.
15 minutes · no install · live in a day · no sales pitch15 min · no install · 1-day live · no pitch
“The data-entry problem never changes — it’s slow, manual, nobody wants the job. This is the first solution I’ve seen that works inside the system instead of trying to replace it.”
Four steps. PDF in your inbox
to a clean row in DB2.No middleware. No RPG patches. No rip-and-replace.
Documents land in the queue.
Email, SFTP, S3, or an API push. Each document becomes one unit of work with its own audit trail.
│
├── invoice_A88412.pdf
├── PO_P1029.pdf
└── claim_RX3094.xml
Vision reads every field.
OCR + vision LLM returns structured values with confidence scores. Parallel across multiple documents.
invoice_no → A-88412
gross_amt → 12480.00
tax_code → S1
Agent opens a 5250 session.
Logs in over your VPN, walks the mapped menu graph to the exact entry screen, takes the cursor.
└─► ACCOUNTS PAYABLE (1)
└─► INVOICE ENTRY (3)
└─► AP3201
Field-by-field, hashed in flight.
Inline validation at every step. A SHA-256 audit chain is written as the agent types — verifiable forever.
└── sha · 3b71…0a9c
k 00414 · TAX ← S1
└── sha · c5e8…77bf
Not RPA. Not a workflow builder.
You don't draw flowcharts. You don't record click paths. You describe the outcome —
and LegacyBridge works out the screens, adapts when they change, and runs without a single install on your side.
| LegacyBridge | Traditional RPA | Offshore BPO | In-house build | |
|---|---|---|---|---|
| Setup | Nothing installed | Windows bots + agent VMs | BPO contract, ops onboarding | Dev team, multi-quarter build |
| Adapts | Yes — vision re-maps the system every run | No — pins to coordinates, breaks on any shift | Yes — humans adapt, slowly | No — code change required |
| Audit | SHA-256 chain per keystroke, tamper-evident | Screenshot logs, limited provenance | Manual, inconsistent across shifts | Whatever you built |
| Time to live | One day | Weeks | 4–8 weeks | Months to quarters |
| Uncertainty | Flags the document for human review and proceeds with next item in queue | Fails silently or crashes | Asks — but adds operator latency | Depends on what you built |
Your Production. Our #1 Priority.
LegacyBridge works like any other operator — it signs in through your VPN, never installs anything, and leaves your system untouched.
Every action it takes is recorded in a tamper-proof log, so you can verify exactly what happened and when.
When It's Uncertain, It Flags.
If a field can't be read confidently, a menu doesn't match, or an answer falls below threshold, the document is flagged for human review and the agent moves on to the next item in the queue. It never guesses — every uncertainty becomes an audit entry, not a silent error.
SHA-256 Hash Chain
Every system action is cryptographically chained and immutable, preventing data tampering at the architecture level.
Monitored & MFA-gated
Aikido continuously scans code and dependencies. TOTP verification for all admin access, session-level granularity for every agent.
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.
If it doesn't prove itself in a day, you've lost a day, not a quarter.
Show me it running
Book a 15-minute call
We ask for your worst IBM i data-entry workflow.
Walkthrough on your screen
We drive LegacyBridge against your actual TN5250 session.
Live on your box in a day
One workflow, running in production. Or you walk.
> Standard plan estimator
What will you pay?
$99 / month base fee + per-document usage that gets cheaper the more you process.
Successful end-to-end document executions only.
Base platform fee
charged in advance each month
Usage cost
computed at end of cycle from your monthly volume
Total monthly
Effective per-document price: $0.5708
Every subscription includes unlimited users, API access, and 24/7 system monitoring.
Frequently Asked Questions
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. At ~10 seconds per document a single agent clears around 360 documents per hour, so most shops can handle their queue with one agent. Multiple agents run in parallel when you need to isolate queues or ring-fence workloads by workflow.