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API Development and Integration Services

Connect your systems so data flows without copy and paste.

APIs and integrations between your CRM, ERP, payment gateways, marketplaces and internal tools, built to be reliable and easy to monitor.

What you get
  • Integration map
  • Reliable APIs
  • Monitoring and alerts
Challenges we solve

Stop moving data by hand.

Challenge

Orders, leads and invoices are re-typed between tools

What changes

Data moves automatically, once

Challenge

Numbers never match across systems

What changes

One source of truth for each record

Challenge

Integrations break silently

What changes

Monitoring that alerts you before customers notice

Challenge

Partners want API access you can't offer

What changes

A documented, secure API they can build on

What's included

Integration work we take on.

Integration mapping

Document which system owns which data and how it should flow.

  • System map
  • Data owners
  • Sync rules
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Custom API development

Secure REST APIs for your apps, partners and mobile clients.

  • REST / webhooks
  • Auth + rate limits
  • Docs
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CRM and ERP integrations

Sync customers, orders, stock and invoices.

  • Zoho
  • Tally / ERP
  • Telemantix
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Payments and marketplaces

Payment gateways and marketplace order and inventory feeds.

  • Razorpay
  • Amazon / Flipkart
  • Shopify
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Messaging

Send WhatsApp, SMS and email from your own systems.

  • WhatsApp Business API
  • Transactional email
  • Templates
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Monitoring

Logs, retries and alerts for every integration.

  • Error alerts
  • Retry queues
  • Health dashboard
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How we deliver

A clear process, with something to see at every step.

01

Discover

Workshops to map goals, users and requirements.

You getScope document
02

Design

UX flows and system architecture.

You getClickable prototype
03

Build

Short sprints with a demo at the end of each.

You getWorking releases
04

Launch

Testing, deployment and team training.

You getProduction go-live
05

Support

Monitoring and a roadmap of improvements.

You getOngoing releases
Technology

Tools and platforms we work with.

We choose tools to fit your goals, team and budget, not the other way round.

Frontend

ReactNext.jsTypeScriptTailwind CSS

Backend

Node.jsPythonPHP / Laravel

Data

PostgreSQLMySQLMongoDBRedis

Cloud & DevOps

CloudLeloAWSGoogle CloudDockerCI/CD
FAQ

Questions we hear often.

Have a different question?

Talk to someone who works on this every day.

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Can you integrate with a system that has no API?

Often yes, through file exports, database access or a small connector. We assess the options during discovery.

What happens when a connected system changes?

Integrations include monitoring and alerts. Under a support plan we update them when vendors change their APIs.

Should we use a no-code tool instead?

For simple flows, tools like Make or n8n are a good fit and we use them. For high volume or critical data, custom code is more reliable.

Do you document the APIs?

Yes. Every API comes with documentation your team and partners can use.

Start a conversation

Tell us what you want to build, automate or grow.

We'll connect you with the right Optimantix team.

1A short call to understand your goals
2A recommended approach and scope
3A clear plan before any work starts
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