S-04 Core services

API Development & Integration

Secure, scalable APIs and integrations that connect your products, payments, data, and operational workflows — the same muscle that powers our MCP and AI integration work.

01 What we build

API services across the whole lifecycle

Custom API development

Design, build, and deploy secure and scalable REST and custom APIs in Node.js, Java, and more.

Third-party integrations

Connect the external platforms and services your product and operations depend on.

Payment API integration

Payment rails, open banking, and fintech APIs integrated with compliance in mind.

Cloud API development

API integration of cloud services across AWS and modern cloud stacks.

API testing & optimization

Automated and manual checks for reliability, security, and performance.

API as a service

The entire cycle — documentation, development, testing, deployment, and support.

02 Why Invatechs

Integration software is our home turf

Open banking, payment APIs, and ERP/CRM integrations have been our core work for a decade — and they are the foundation of every AI and MCP project we ship.

  • 10+ years of API delivery — open banking, payments, payroll, and logistics integrations
  • Security-minded by default — scoped access, auditability, and safe data handling
  • Performance under load — tested, monitored, and optimized in production
  • AI-ready interfaces — APIs designed so agents and MCP servers can use them safely

03 How it runs

Five steps from consulting to supported API

STEP 1Consulting

We research your business and suggest the best APIs and integration strategy.

STEP 2Design & integration

Assemble and integrate single or multiple interfaces into your product.

STEP 3Testing

Automated and manual checks for reliability, security, and performance.

STEP 4API management

Finalize, customize, and optimize the interface for your product.

STEP 5Maintenance & support

Ongoing tests, optimization, and secure data flows over time.

Need systems that talk to each other reliably?

Book an AI discovery call Contact Invatechs

Related