Now building for enterprise teams

Your Legacy Systems
Don't Have APIs?
We Build Them.

Unlock the data trapped in your mainframes and proprietary databases. We create custom APIs for systems that never had them — in just 2–4 weeks.

2–4 Weeks
Average delivery
70%
Cost savings vs replacement
Zero
Code for your team to write
Legacy Mainframes Custom Databases Proprietary Systems AS/400 & iSeries File-Based Systems

Legacy Systems Can't Connect

Every iPaaS vendor says the same thing. We say something different: we'll build it.

🏭

Manufacturing ERP

✕ No API Available
📦

Warehouse System

✕ Too Old to Integrate
💾

Custom Database

✕ Replace First
📇

Legacy CRM

✕ Not Supported

Sound familiar? Stop hearing "impossible." Start hearing "2 weeks."

APIs Where None Exist

While others just connect existing APIs, we create them for systems that never had them.

1

We Analyze Your System

We reverse-engineer your legacy system's data structures, protocols, and business logic — in days, not months.

Database schemas · Data flows · Business rules
2

Build Custom API Layer

Create RESTful or GraphQL endpoints with authentication, rate limiting, caching, and full documentation.

REST/GraphQL · OAuth 2.0 · <50ms response
3

Deploy & Maintain

Cloud-native deployment with 99.9% uptime SLA, real-time monitoring, and ongoing maintenance.

Hosted · Monitored · 10M+ req/day

Every Day Without APIs Costs You Money

Companies freed from legacy system limitations. Their mainframes and custom databases now power modern applications.

🔓

Unlock Your Trapped Data

Stop losing revenue because critical data is stuck in legacy systems. We make your mainframes, databases, and custom software accessible to modern applications.

🚀

Launch Products 6× Faster

Go to market in 2–4 weeks instead of waiting 6 months. Beat competitors while they're still planning their integration strategy.

💰

Preserve Your Investment

Avoid the $10M+ cost of replacing legacy systems. Get modern capabilities at 70% less cost while keeping the systems that run your business.

Enterprise-Grade From Day One

REST/GraphQL
Modern API standards
OAuth 2.0
Enterprise security
<50ms
Response time
10M+
Requests per day
COBOL / Mainframe AS/400 & iSeries Oracle / SAP / Siebel Custom Databases File Systems

From Zero API to Fully Functional

Predictable timeline. No surprises.

1

Analyze

Reverse-engineer your legacy system's structure in days

2

Build API

Create custom API layer for your specific system

3

Test

Validate data flow and security end-to-end

4

Deploy

2–4 weeks: your legacy system has a modern API

Stop Letting "No API"
Block Your Growth

Free Integration Reality Check — we'll assess your systems, show you what's possible, and build a plan. No commitment required.

Free assessment No commitment Response in 24 hours

Or email directly: getveave@nyusta.com

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