Third party software integration

Get an Estimate

Bridge disconnected systems, reduce costs, and accelerate performance with frictionless automation

Get web integration services that work and succeed

Still copying data between apps, fixing broken syncs, or working around missing fields? Third-party system integration should make your everyday workflows easier. However, when tools don’t talk to each other, data sits idle, processes slow down, and teams waste time bridging gaps manually. We help those systems flow together, so updates happen automatically, errors fade into the background, and your focus stays on meaningful work, not solving puzzles.

Audit my systems

Our third-party integration expertise

Enterprise integrations

We ensure integration with your ERP (Enterprise Resource Planning) tools to synchronize financials, inventory, and workflows. Additionally, we integrate sales, marketing, and support platforms by connecting them to your CRM. Our team also connects your connect your DMS to CRM and ERP by linking them to document management software and e-signature tools.

Centralization and automation

COAX experts establish third-party integrations to workflow automation platforms, bridging your CRM, ERP, and communication tools for seamless operations. We also link intranets to HR systems, collaboration tools, and databases to centralize your resources.

Industry-specific integrations

For logistics and transportation, we connect SCM (supply chain management) tools to bridge procurement, warehousing, and TSMs. For retailers, we enable third-party integration to vendor portals, payment gateways, ERP, POS, and logistics systems. For healthcare, we bridge EHR platforms and patient engagement tools.

System modernization integrations

We connect legacy applications to modern cloud services, preserving institutional knowledge while upgrading performance. Our experts extend in-house software through third-party API integration, bridging the gap between legacy and cloud systems, and elevate open-source platforms, ensuring community-driven tools align with institutional standards.

Integrations to enhance ready-made solutions

We optimize COTS software with enterprise extensions, pushing beyond vendor limitations. We connect SaaS solutions, like CRM, ERP, and analytics tools, to automate workflows and expand functionality. We also seamlessly embed third-party services, including payment gateways, 3rd party logistics software, and social platforms, into your systems.

Integrations lowering technological complexity

We modernize traditional transaction systems, like core banking, inventory, and order platforms, without costly re-engineering to reduce complexity. At the same time, we integrate modern solutions, including IoT sensor networks, ML models, and big data analytics. By bridging old and new, we cut through tech friction so you can focus on growth.

Integrations to improve location access

COAX engineers sync IoT devices, GPS trackers, and mapping APIs across distributed cloud platforms for real-time visibility. For on-premises needs, we integrate RFID, BLE beacons, and local tracking databases with your existing servers. Cloud or ground-based, we ensure all your location data works together effortlessly.

Advanced third-party integrations

Our teams compare and select tools based on your API specs, SLA terms, and ecosystem fit, ensuring optimal performance. We go deeper with API documentation analysis, decoding technical specs, authentication protocols, and endpoint structures to guarantee seamless third-party data integration every time.

Our expertise

Our team has excellent coding skills and rich experience in creating apps for all types of businesses mentioned below. Our rich base of ready-made solutions in these areas helps us to stand out from other web app development companies, and we can make you outshine your competitors, too.

Choosing our third-party solutions, you get

  • Industry-specific expertise

    Over 15 years, our custom API integration services have improved operations for e-commerce stores, travel agencies, and fintech startups. Whether it’s syncing retail inventory or securing healthcare data transfers, we know how to build integrations that last.

  • Improved employee productivity

    By automating repetitive tasks and syncing data between tools, we help your team focus on meaningful work instead of manual busywork. Our integrations cut down on the daily grind — less time spent switching between apps means fewer errors and more hours for high-value projects.

  • Lower IT and operational costs

    Our API integration services reduce the need for costly manual workarounds and custom-built solutions. By automating workflows, we help cut down on software licensing bloat and repetitive maintenance tasks, keeping your ops lean and efficient.

  • Real-time visibility

    Our integrations show you live data from all connected systems in one place. You'll always see current inventory levels, order statuses, and transaction records without manual updates. Your workflows will speed up with dashboard displays what's happening right now — sales, shipments, or service requests — so you never work with outdated information.

  • Customization and flexibility

    Our third-party integration services adapt to your existing workflows. We configure connections to match how your business operates, whether that means custom data fields, unique approval steps, or specialized reporting. Need to add exceptions for certain transactions or modify sync schedules? We make those adjustments.

  • User-driven innovation

    Good integrations evolve with their users. We prioritize features that your staff requests, turning their workflow frustrations into streamlined solutions. When users suggest improvements, we adapt the system to work smarter for them.

What our clients say


I was most impressed by the quality of the end product.

While my ideas formed the basis for the work, they delivered a far more superior product than I imagined with greater flexibility and viability of features. They exceeded expectations so many times it got to the point I couldn't wait to see what they came up with next.

Dan Brooks

President, Krytter

COAX have delivered immense value to our business as our valued strategic development partner.

I implicitly trust the whole COAX team to do the right thing by location:live, and to have blunt and honest conversations with me when we are in the thick of delivery. COAX are the engine room and compass behind our market-leading tech.

Neil Winkworth

CTPO, Location Live

For almost 10 years now, I’ve enjoyed working with COAX Software on various projects.

Their team of highly talented, cross-functional software engineers and architects helps us meet development timelines quickly and reliably.

Joseph Heenan

CEO, Proteineer

From legal and financial support to software development, COAX Software repeatedly went above and beyond.

With their deep expertise and responsive communication, we would recommend this team to anyone needing complex custom development.

Mykola Bronitskyy

Co-founder, GrandBus

Your pain points — our solutions

See All projects

COAX process for implementing third-party software

We start by auditing your existing systems and documenting all required data and API integration services, mapping out endpoints, authentication methods, and payload structures. This includes analyzing API documentation, rate limits, and data formats to identify potential compatibility issues early.

Our team diagrams system interactions to define latency bottlenecks, authentication handoffs, and error recovery requirements for each integration point. This includes assessing payload structures, field mappings, and potential data loss risks during transfers.

We design the middleware layer for 3rd party integrations, specifying whether to use API gateways, webhooks, or message queues based on each system's requirements. We map out sync frequencies and conflict resolution rules upfront.

We build the integration layer by writing custom connectors that handle authentication, data transformation, and error logging between systems. Each API endpoint is implemented with proper request throttling and response validation to ensure reliability.

Our QA team executes third-party software testing by validating all API responses against contract specifications, including edge cases for data formats and error codes. Automated scripts verify integration stability under load with simulated traffic spikes and recovery scenarios.

We monitor integration health through automated alerts for API failures, data sync delays, or authentication issues, with predefined runbooks for common recovery scenarios. Version checks for third-party API updates are scheduled biweekly to prevent deprecated feature usage.

Frequently asked questions and answers

Third-party software is any application or system developed by an external provider, not your own team, that you connect to your existing tech stack. Examples include payment gateways, CRM platforms, or analytics tools that add functionality without requiring custom development.

API integration connects systems by allowing them to communicate through predefined protocols. One system sends requests (like retrieving data) to another system’s API, which processes it and returns a response, enabling data sharing without manual intervention.

API-first integration means designing systems with 3rd party API integration as a core requirement from the start, not an afterthought. Instead of forcing connections later, applications are built to easily connect and share data with external tools through standardized APIs.

The time needed for an API integration depends on complexity. Simple connections might take a few days, while enterprise systems with custom logic can require weeks or months. Factors like authentication methods, data transformations, and third-party API reliability all impact the timeline.

After integration, you'll need ongoing support through third party management software to monitor connections, handle updates, and troubleshoot issues. This includes tracking API changes from vendors, managing authentication renewals, and reviewing error logs.

A third-party API integration developer specializes in connecting different software systems by writing code that allows them to communicate. They work with external APIs, studying documentation, handling authentication, managing data formats, and ensuring smooth, secure data flow between platforms.

API integration testing checks if different systems communicate correctly through their APIs. It spans verifying requests, responses, error handling, and performance under real-world conditions. For example, web integration services might test how an e-commerce site's order API interacts with a shipping carrier's system to confirm that orders sync properly.

Want to know more?
Check our blog

eCommerce

How to integrate with eCommerce delivery and shipment carriers

November 14, 2025

Go to the blog post page

Development

API integration testing: Mock vs. stub

September 19, 2025

Go to the blog post page

Logistics

What is enterprise resource planning (ERP)?

August 11, 2025

Go to the blog post page

Logistics

TMS features & TMS integration: A complete guide

May 30, 2025

Go to the blog post page

Travel

Airline reservation system & passenger service system explained

January 31, 2025

Go to the blog post page

Company news

COAX team took 2nd place at the CASSINI Hackathon

December 6, 2024

Go to the blog post page

Development

Native integration vs. custom API integration: What works best

November 7, 2024

Go to the blog post page

eCommerce

Payment gateway integration guide: Payment APIs compared

October 24, 2024

Go to the blog post page

eCommerce

Best AI integrations for your CRM software

September 3, 2024

Go to the blog post page

Development

Face recognition apps: How technology sees us

March 29, 2024

Go to the blog post page

How can I help you?

Contact details

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Tell me about your industry, your idea, your expectations, and any work that has already been completed. Your input will help me provide you with an accurate project estimation.

Contact details

Budget

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

What I’ll do next?

  • 1

    Contact you within 24 hours

  • 2

    Clarify your expectations, business objectives, and project requirements

  • 3

    Develop and accept a proposal

  • 4

    After that, we can start our partnership

Khrystyna Chebanenko

Client engagement manager