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Nexevol Technologies

Make your systems talk to each other, reliably.

We design APIs and integrations that move data between your CRM, ERP, payment providers, databases and third-party services, with the error handling and visibility that business-critical data needs.
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API & System Integration

  • REST and GraphQL API design and development
  • CRM and ERP integrations
  • Payment provider integrations
  • Webhooks and event-driven data sync

Problems this solves

If any of these sound familiar, this service is likely a good starting point.

  • The same data is entered twice

    Orders, customers and invoices are re-keyed between systems, causing delays and mismatches.

  • Integrations fail silently

    An existing connection stops working and nobody notices until a customer or the finance team does.

  • A new tool doesn’t connect to the old one

    You want to adopt a better service, but it cannot exchange data with your core systems.

What we deliver

Core capabilities within api & system integration.
  • REST and GraphQL API design and development
  • CRM and ERP integrations
  • Payment provider integrations
  • Webhooks and event-driven data sync
  • Data migration between systems
  • Integration monitoring, retries and alerting

Example use cases

Typical applications of this service. These are examples of what we can build, not client references.

  • Shop-to-ERP order sync

    Online orders flow into your ERP, with stock and status updates flowing back.

  • CRM lead capture

    Leads from forms, email and events land in your CRM with the right owner and context.

  • Payment reconciliation

    Payment provider data is matched against invoices automatically, with exceptions flagged.

  • Public API for partners

    A documented, secure API so partners can integrate with your platform themselves.

How we approach it

Our development process, applied to api & system integration.
  1. Step 1

    Map the data

    We document which system owns which data, how often it changes and what happens when records conflict.

  2. Step 2

    Design for failure

    Retries, idempotency, dead-letter queues and alerts are designed in from the start.

  3. Step 3

    Test with real payloads

    Integrations are tested against sandbox environments and realistic edge cases.

  4. Step 4

    Make it observable

    Dashboards and logs show what synced, what failed and why.

Relevant technologies

A typical toolset for this kind of work. Final choices depend on your requirements and existing systems.
  • Node.js
  • Python
  • REST
  • GraphQL
  • Webhooks
  • Message queues
  • OpenAPI
  • PostgreSQL

API & System Integration: common questions

Can’t find your question? Ask us directly.

Can you integrate with a system that has no API?

Sometimes. Options include database-level access, file exchange, email parsing or vendor-provided connectors. We assess what is reliable and supportable before recommending an approach.

Should we use an integration platform or custom code?

Integration platforms work well for standard connections. Custom integrations are better for complex logic, high volumes or when you want to avoid per-transaction fees. We often combine both.

What happens when one of the connected systems changes?

We build integrations with versioned contracts and automated tests so breaking changes are caught early. Ongoing support includes updating integrations when vendors change their APIs.

How do you keep integrations secure?

We use least-privilege credentials, encrypted connections, secret management and audit logging, and we avoid storing sensitive data unnecessarily.

Related services

Tired of moving data by hand?

List the systems involved and the data that needs to move between them. We will outline a reliable integration approach.

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