Third-party API Integration Services

When it comes to boosting online presence for your business, third-party integrations can add value to the user experience and overall functionality. River API is the leading UK agency specialising in third-party API integration services.

Whether it’s a shipping method, payment gateway, or social media, our API developers are here to integrate external services into your website, app, or system in the way you need. With the new-gen tech stack and following the industry’s best practices, River API company is building headway for your business’ success.

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Our third-party API integration services

E-commerce and Marketplace Integrations

Expand your online store’s capabilities by integrating with platforms like Shopify, WooCommerce, Magento, Amazon, or eBay. Manage inventory, sync orders, and streamline product data without manual intervention.

Social Media and Authentication Integrations

Connect your applications with Facebook, Google, LinkedIn, Twitter, and other social platforms for both social logins and content sharing. River API makes sure integrations are secure, compliant, and scalable without slowing down your user experience.

ERP & CRM API Integrations

Does your business rely on personalised CRM and ERP software? Let’s blend them and make your workflows more efficient than ever. Our devs can connect and sync your ERP system with the CRM and automate the data flows on both systems.

Google APIs Integrations

We offer full-cycle Google API integration services at River API agency. Our expert software developers can integrate official Google APIs such as Google maps, Google places, Google vision, and tag manager into your platforms.

Integrations of Payment Gateways

Seamless checkout experiences drive trust and conversions. River API integrates leading payment platforms like Stripe, PayPal, Square, and custom gateways into your applications, making transactions secure, fast, and straightforward.

Logistics, Shipping, and Order Management Integrations

We integrate your platform with major shipping carriers, logistics providers, and warehouse systems. As a result, order tracking, fulfillment updates, and inventory management happen automatically, not manually. This means faster operations and happier customers.

Customer Support and Helpdesk Integrations

Integrate your platform with Zendesk, Freshdesk, Intercom, or custom ticketing systems. Keep customer conversations flowing smoothly without making users bounce between disconnected platforms.

Cloud Storage and File Management Integrations

Tie into services like AWS S3, Google Drive, Dropbox, and Azure Blob Storage. Manage user files, content uploads, and secure backups through cloud storage APIs built for performance and easy access.

Tired of patching broken workflows?
Let’s connect your platform with third-party APIs the right way.

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Our Third-Party API Integration Process

Scope and sanity check

We start by understanding exactly what type of service you need to connect, what it means for your business, and what are the hidden challenges. Then our team delves into the API documentation, runs quick validation tests, and marks any red flags early.

Map the integration points

Next, the River API team designs the flow of a third-party API integration. What data moves where? What triggers it? What happens if the third-party service delays, fails, or changes unexpectedly? Every endpoint, every call, and every fallback gets mapped cleanly before any code gets written.

Build and connect

We code the third-party API integration with reliability first, handling auth, retries, error reporting, and data validation without taking shortcuts. Whether it’s OAuth, API keys, webhooks, or polling, our devs handle the heavy back-end, so your system stays structured.

Test it under real-world conditions

We don’t trust "it worked once." River API developers simulate load, bad responses, and service outages to make sure your system and third-party integrations react like they should, not how the docs said they might.

Monitor, tune, and support

Once live, the River API support team keeps an eye on performance and behaviour, tuning thresholds and error handling as needed.

FAQ: Third-Party API Integration Services in the UK

What exactly is third-party API integration?

Third-party API integration is the process of connecting your software or systems with external platforms, such as payment processors, CRMs, shipping carriers, analytics tools, and more, with the help of APIs.

The goal of third-party API integration is to automate workflows, sync data, and avoid wasting time on manual workarounds. Good integrations should behave reliably under real-world conditions.

Can you integrate with older or less-documented APIs?

Most of the time, yes. River API agency can deal with messy documentation, outdated libraries, and vendors who stopped answering emails three years ago. If there’s a stable endpoint and a way to authenticate, chances are we can work with it or find a practical workaround without breaking your system.

How do you handle API updates or deprecations?

River API builds with change in mind. That means isolating integration points, keeping dependencies clean, and setting up monitoring that catches changes before they become outages. If an external API changes or sunsets, you won’t be finding out from angry customers: you’ll know from us first.

What if the third-party service goes down?

We build proper fallback logic. Depending on your needs, we can queue transactions, retry intelligently, or gracefully degrade functionality while keeping the user experience intact.

How secure are third-party API integrations?

Security isn’t optional. River API developers follow the best practices for authentication, encryption, rate-limiting, and error handling. If you’re dealing with sensitive user data, such as payments, customer info, healthcare records, and more, we build to the security standards your industry demands.

Do you only work with UK companies?

Our leadership is UK-based, and most of our clients are UK or Europe headquartered, but we handle projects globally. The real requirement isn’t geography: it’s working with teams that value clean systems, sharp thinking, and APIs that won't collapse when the traffic doubles.

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Ready to connect the dots across your systems? Let’s build integrations that keep your business moving forward.

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