Custom API Integration Services — Connect Any Software Application
You Build the Software. We Build the Integrations
Need to connect your software with third-party applications? Let the API integration experts at Kosmos Central handle the development, integration, and ongoing maintenance while you focus on growing your business.
Whether you’re a SaaS company expanding your integrations, a software developer looking for an experienced API partner, or a business owner connecting critical applications, Kosmos eSync makes custom API integration easier, faster, and more scalable.
Our professional API developers build custom connections to compatible third-party APIs and integrate them into the eSync platform, where you can configure, automate, monitor, and manage your integrations from one centralized dashboard.
Talk to an API Integration Expert | Become an Integration Partner
Your API Integration Development Partner
Why Build Every Integration Yourself When Kosmos Can Do It for You?
Building and maintaining API integrations takes time, development resources, and ongoing support. Every new application introduces different API requirements, authentication methods, data structures, and updates.
That’s where Kosmos comes in.
Our experienced API integration team handles the technical complexity, allowing software companies to expand their integration capabilities without building and maintaining every connection in-house.
With Kosmos eSync, you can:
- Expand your software’s capabilities: Connect with additional third-party business applications.
- Reduce development costs: Avoid building and supporting every integration from scratch.
- Accelerate time to market: Launch new integrations faster using an established integration platform.
- Simplify ongoing maintenance: Let Kosmos manage connector updates, API changes, and integration troubleshooting.
- Create new revenue opportunities: Offer additional integrations to existing and prospective customers.
- Scale your integration ecosystem: Add new API connections as your software and customer requirements grow.
One integration partner. More connections. Less complexity.
Discuss Your Integration Requirements
Built for Software Companies, Developers, and Growing Businesses
SaaS Companies & Independent Software Vendors (ISVs)
Your customers expect your software to connect with the applications they already use.
Instead of dedicating valuable engineering resources to every integration request, partner with Kosmos to develop and support new API connections.
Expand your software ecosystem, improve customer retention, and unlock new sales opportunities.
Software Developers & Technology Partners
Have a client that needs a complex third-party integration?
Kosmos provides API integration expertise and the eSync platform to help you deliver connected software solutions without building integration infrastructure from scratch.
Collaborate with our team to connect applications, automate workflows, and support your customers’ integration requirements.
Entrepreneurs & Startups
Launching a new software product or SaaS application?
Don’t let API development slow your growth. Kosmos can help connect your application with compatible third-party systems so you can focus on developing your core product and acquiring customers.
Business Owners & Enterprises
Disconnected software creates unnecessary manual work, duplicate data entry, and costly errors.
Connect your business applications through eSync to automate data transfers, streamline operations, and keep your existing systems working together.
Connect Your Software to a Growing Ecosystem of Applications
One Platform. Multiple Integrations. Endless Opportunities.
Kosmos eSync is an Integration Platform as a Service (iPaaS) designed to connect cloud applications, automate data transfers, and simplify integration management.
Our API experts can develop custom connections for compatible software applications across industries, including:
- eCommerce & Marketplaces: Shopify, BigCommerce, WooCommerce, Amazon, and more.
- Point of Sale (POS): Clover, Square, Lightspeed, Revel, and other POS platforms.
- ERP & Business Management: Acumatica and other ERP applications.
- CRM & Marketing: Customer relationship management, marketing automation, and customer engagement platforms.
- Accounting & Financial Systems: Accounting software, financial applications, and back-office systems.
- Custom SaaS Applications: Proprietary software, industry-specific platforms, and emerging cloud technologies.
Don’t see the application you need?
If your software provides a compatible, accessible API, our development team can evaluate creating a custom connection to eSync.
Request a Custom API Integration
How Custom API Integration Works with Kosmos eSync
From API Requirements to a Connected Solution
Step 1: Tell Us What You Need
Share the software applications you want to connect, your API documentation, and the data or business processes you need to automate.
Step 2: We Design Your Integration
Our API specialists review the requirements, determine API compatibility, and develop an integration plan with the necessary data mappings, workflows, and business rules.
Step 3: We Build and Connect Your API
Our development team creates the custom API connection and integrates it with the Kosmos eSync platform.
Step 4: Configure and Automate with eSync
Once connected, configure supported synchronization schedules, data mappings, and integration actions from the eSync dashboard.
Step 5: We Maintain Your Integration
Kosmos provides ongoing connector maintenance and technical support, helping your integrations remain operational as third-party APIs evolve.
Build once. Connect to more. Grow without limits.
Why Choose Kosmos eSync Instead of Building Integrations In-House?
Your Development Team Should Focus on Your Software — Not Maintaining Third-Party APIs.
Professional API Development
Work with experienced integration specialists who understand the complexities of connecting different software platforms.
Established iPaaS Technology
Leverage an existing integration platform instead of building your own infrastructure to manage connections and data synchronization.
Customizable Integrations
Support application-specific field mappings, business rules, workflows, and data synchronization requirements.
Centralized Integration Management
Manage supported integration configurations, synchronization schedules, and troubleshooting from the eSync dashboard.
Your Data Stays in Your Business Systems
Unlike integration solutions that require you to manage business data in another database, eSync transfers data between connected applications without storing synchronized business records in a separate management database.
Your designated POS, ERP, or other primary business application remains your system of record.
Ongoing API Maintenance
Our team handles connector maintenance and troubleshooting, reducing the burden on your internal developers.
Software Companies: Expand Your Integration Ecosystem Without Expanding Your Development Team
Become a Kosmos API Integration Partner
Every customer integration request is an opportunity to deliver more value.
Kosmos helps software companies and technology providers extend their applications through professional API integration development and the eSync platform.
Partnering with Kosmos can help your company:
- Offer new third-party integrations without developing every connector internally.
- Respond to customer integration requests more quickly.
- Increase the value and competitiveness of your software.
- Create opportunities for recurring integration-related revenue.
- Reduce ongoing API maintenance and support responsibilities.
- Build long-term customer relationships through connected software solutions.
You build great software. We help connect it to the world.
Explore API Partnership Opportunities
Frequently Asked Questions
Can Kosmos integrate our software with any API?
Kosmos can evaluate and develop integrations for a wide range of software applications that provide accessible, compatible APIs. Feasibility depends on API capabilities, permissions, documentation, and the integration requirements.
Do we need to develop our own API integration?
Not necessarily. Our development team can build the connection between your software and the eSync platform, reducing the need for your team to create and maintain third-party connectors.
Can we add additional integrations later?
Yes. Once your software is connected to eSync, you can evaluate and add additional compatible applications and workflows as your business grows.
Who maintains the API integrations?
Kosmos maintains the connectors it develops and supports, including troubleshooting and updates required by changes to third-party APIs.
Does eSync store our business data?
eSync synchronizes business data between connected applications without maintaining a separate database of synchronized business records for customers to manage. eSync may retain integration logs and operational information for troubleshooting.
How long does a custom API integration take?
Kosmos has historically delivered new API connections in about 10–30 days. Actual development timelines depend on API complexity, documentation, access, testing, and customization requirements.
Can software companies partner with Kosmos?
Yes. Kosmos works with software providers, developers, and technology partners that want to expand their integration capabilities and offer connected solutions to customers.
Ready to Connect Your Software?
Stop Spending Time Building and Maintaining Integrations. Let Kosmos Handle the APIs.
Whether you need one custom API connection or an expanding ecosystem of third-party integrations, Kosmos provides the expertise and technology to help connect your applications.
Tell us what you’re building. We’ll help you connect it.
Speak with an API Integration Expert
Become a Kosmos Integration Partner
Kosmos Central | Custom API Integration Development | Kosmos eSync iPaaS Platform