Capability · Agentic modernization · 01 / 01

Agentic LegacyModernization

Modern APIs and internal apps for the systems of record you already trust.

Modernize legacy workflows incrementally. Discover existing terminal, COBOL and SOAP/XML interfaces; describe their contracts; expose validated OpenAPI-compatible adapters and build usable React front ends while retaining the underlying system's business behavior.

ON-PREM · AIR-GAPPED
Vintage computer terminal in a dim room
beaglabs / modernization
What's included

The whole vertical slice, not a fragment.

3 sections

Discover and understand

Inventory existing interfaces before changing how people access them.

  • COBOL copybooks, VSAM and mainframe dataset interfaces
  • TN3270 terminal workflows and screen fields
  • SOAP/XML services, schemas and transaction boundaries
  • Source mapping with documented assumptions and constraints

Wrap with modern contracts

Preserve business behavior through controlled adapters.

  • REST/OpenAPI facades over existing services
  • Typed canonical JSON for request and response models
  • Input validation, authentication and audit trails
  • Explicit error handling and regression tests

Give teams a usable front end

Create interfaces around the existing systems of record.

  • React-based forms and process views
  • Identity-aware internal request workflows
  • Human approval for consequential steps
  • Incremental deployment without forced replacement
How we work

Three steps. No surprises.

  1. 01

    Inventory the contracts

    Map existing transactions, message formats, dependencies and business rules. Define test fixtures and a safe integration boundary.

  2. 02

    Wrap and validate

    Generate adapters and OpenAPI descriptions, then compare output and error behavior with the legacy service using representative test cases.

  3. 03

    Build and govern

    Create a browser-based workflow with role-aware access, action logs, deployment documentation and an explicit review process.

COBOLCopybooks and transaction interfaces
SOAPXML service adapters
OpenAPIModern integration contracts
Next step

Modernize access without rewriting the core

Discuss a bounded legacy workflow and the right level of API wrapping, UI replacement and regression testing.

Other capabilities

Pick the next one

Company information

Registered, certified, and ready to contract.

Beag Labs is a HUBZone-certified small business. We hold an active SBA profile and are registered in SAM.gov with the UEI and CAGE codes below. Send procurement or contracting questions to the email listed.

UEI
CDQ1WLGN41X6
CAGE
22QH1
Certifications
Tradewinds Solutions Marketplace — Awardable
B_

Prepared by

Beag Labs

Oct 2026

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