API Integration Services
Connect disparate systems, unlock data silos, and automate critical workflows.
We build robust, scalable, and secure API ecosystems that power your business growth.
Trusted by Global Leaders and Innovators
Your Systems Don't Talk. Your Business Suffers.
In today's digital ecosystem, isolated applications are a liability. Manual data entry, inconsistent information, and disjointed customer experiences are symptoms of a deeper problem: a lack of connectivity. This inefficiency doesn't just slow you down; it actively costs you revenue, frustrates your teams, and blocks innovation. Effective API integration is no longer a technical luxury—it's the central nervous system of a modern, agile, and scalable enterprise. It's the key to unlocking the full potential of your existing software investments and creating a unified, automated operational backbone that drives real business outcomes.
Why Partner with Developers.dev for API Integration?
We don't just connect endpoints. We architect future-proof, scalable, and secure integration solutions that align with your strategic business goals.
Strategic Architecture
We design API layers that are not just functional but also scalable and maintainable, ensuring your integration strategy supports long-term growth.
Security-First Approach
Our integrations adhere to the highest security standards, including OAuth, JWT, and encryption, to protect your data at every transaction point.
Performance Optimized
We focus on high-performance, low-latency integrations, building efficient data pipelines that ensure your applications remain fast and responsive.
Full-Stack Expertise
Our team understands the entire technology stack, from front-end applications to back-end databases, enabling us to build truly seamless end-to-end integrations.
AI-Enabled Processes
We leverage AI-powered tools for faster development, proactive monitoring, and intelligent error handling, delivering more resilient and efficient integrations.
Transparent Collaboration
You get a dedicated project manager and direct access to our developers, ensuring clear communication and alignment throughout the project lifecycle.
Custom & 3rd-Party Mastery
Whether it's building a custom REST/GraphQL API or integrating with complex platforms like Salesforce or SAP, our team has the proven experience to deliver.
Guaranteed IP Ownership
You retain 100% ownership of all intellectual property. Our work is your asset, providing you with full control and a competitive advantage.
Dedicated Long-Term Support
Our partnership doesn't end at deployment. We offer comprehensive maintenance and support plans to ensure your integrations run smoothly and evolve with your business.
Our Comprehensive API Integration Services
From custom API development to complex enterprise system orchestration, we provide a full spectrum of services to create a seamlessly connected digital ecosystem.
Custom API Development
We build secure, well-documented, and high-performance RESTful and GraphQL APIs from the ground up, tailored to your specific business logic and data models.
- Expose core business functions for new applications.
- Create a scalable foundation for your microservices architecture.
- Enable secure data exchange with partners and customers.
Third-Party API Integration
We seamlessly connect your applications with external services, from payment gateways and shipping providers to social media platforms and marketing automation tools.
- Extend application functionality without building from scratch.
- Automate data synchronization between your app and external tools.
- Enrich your user experience with external data and features.
API Gateway Implementation
We deploy and configure API gateways to act as a secure, single entry point for all your backend services, simplifying management, security, and monitoring.
- Centralize authentication, rate limiting, and logging.
- Protect backend services from direct exposure to the internet.
- Aggregate multiple microservices into a single API endpoint.
API Security & Identity Management
We implement robust security protocols like OAuth 2.0, OpenID Connect, and JWT to ensure that your APIs are accessed only by authorized users and applications.
- Prevent unauthorized data access and manipulation.
- Implement fine-grained access control and permissions.
- Ensure compliance with data privacy regulations.
API Documentation & Developer Portals
We create clear, comprehensive, and interactive API documentation using standards like OpenAPI/Swagger, making it easy for developers to adopt and use your APIs.
- Accelerate onboarding for internal and external developers.
- Reduce support overhead with self-service documentation.
- Promote API adoption and build a developer community.
CRM & ERP Integration (Salesforce, SAP)
We synchronize your core business systems, ensuring a single source of truth for customer and operational data across your entire organization.
- Automate lead-to-cash and order-to-fulfillment processes.
- Provide a 360-degree view of the customer journey.
- Eliminate manual data entry and reduce human error.
Cloud Integration (AWS, Azure, GCP)
We connect on-premise systems with cloud services, enabling hybrid cloud strategies and leveraging the power of cloud-native tools for data processing and analytics.
- Build scalable data pipelines to cloud data warehouses.
- Integrate with serverless functions for event-driven automation.
- Enable seamless data flow between legacy and modern systems.
Payment Gateway Integration
We securely integrate leading payment gateways like Stripe, PayPal, and Braintree into your applications, enabling seamless and secure transaction processing.
- Offer multiple payment options to your customers.
- Ensure PCI compliance and secure handling of financial data.
- Automate billing, invoicing, and subscription management.
Marketing & Sales Automation Integration
We connect your CRM with marketing platforms like HubSpot, Marketo, and Pardot to create a unified view of your sales and marketing funnel.
- Automate lead nurturing and scoring based on user behavior.
- Track campaign ROI and attribute revenue to marketing efforts.
- Personalize customer communications across all touchpoints.
E-commerce Platform Integration
We connect your e-commerce store (Shopify, Magento, BigCommerce) with your ERP, CRM, and logistics systems for streamlined operations.
- Automate order processing, inventory management, and shipping.
- Synchronize product catalogs and customer data across platforms.
- Provide a seamless omnichannel customer experience.
Microservices & API Orchestration
We design and implement communication patterns between your microservices, ensuring resilient and efficient orchestration for complex business processes.
- Implement event-driven architectures using message queues.
- Manage complex workflows and distributed transactions.
- Ensure service discovery and load balancing in a distributed system.
API Performance Monitoring & Analytics
We set up comprehensive monitoring dashboards to track API health, performance, and usage, providing actionable insights to optimize your integration layer.
- Proactively identify and resolve performance bottlenecks.
- Track key metrics like latency, error rates, and uptime.
- Understand API usage patterns to inform business decisions.
Legacy System Integration & Modernization
We create modern API wrappers around your legacy systems, enabling them to communicate with new cloud-based applications without requiring a full rewrite.
- Extend the life and value of your existing software investments.
- Enable phased modernization by gradually replacing legacy components.
- Unlock valuable data trapped in legacy databases and mainframes.
Data Synchronization & ETL Pipelines
We build robust data pipelines that extract, transform, and load (ETL) data between various sources, ensuring data consistency and integrity across your organization.
- Automate the transfer of data between databases and applications.
- Cleanse and transform data to ensure it meets quality standards.
- Enable real-time or batch data synchronization as needed.
AI & Machine Learning API Integration
We integrate AI/ML models and services (like OpenAI, Google AI, AWS SageMaker) into your applications to power intelligent features and automate complex decisions.
- Add features like natural language processing or image recognition.
- Automate business processes with intelligent decision-making.
- Create personalized user experiences based on predictive analytics.
Our Technology & Platform Expertise
We work with a wide array of modern technologies, platforms, and protocols to build robust and scalable API solutions.
Powering Connectivity Across Industries
Our API integration expertise helps businesses in various sectors overcome unique challenges and unlock new opportunities for growth and efficiency.
Healthcare & MedTech
FinTech & Banking
Retail & E-commerce
Manufacturing & Logistics
Education & EdTech
Telecommunications
Success Stories in System Integration
See how we've helped businesses like yours build connected ecosystems that drive efficiency, innovation, and growth.
Case Study: FinTech Platform Automation
Industry: Financial Technology (FinTech)
Client Overview: A rapidly growing FinTech startup providing automated investment portfolio management. They were struggling with manual data reconciliation between their trading platform, their CRM (Salesforce), and their market data provider, leading to delays and potential errors in client reporting.
Key Challenges:
- Manual, error-prone data entry across three critical systems.
- Lack of real-time portfolio updates for their client-facing dashboard.
- Inability to scale their onboarding process due to system bottlenecks.
- Security concerns around transferring sensitive financial data.
Our Solution:
We designed and implemented a secure, event-driven integration architecture using a central API gateway.
- Developed a custom REST API to expose core functionalities of their proprietary trading platform.
- Integrated Salesforce using its native APIs to automate the creation and updating of client records based on trading activity.
- Built a real-time data pipeline from their market data provider (e.g., Bloomberg) to their platform via a WebSocket API.
- Implemented OAuth 2.0 for secure, token-based authentication across all integrated services.
Positive Outcomes:
Case Study: Healthcare Data Unification
Industry: Healthcare
Client Overview: A multi-specialty hospital group needed to create a unified patient data view by integrating their legacy Electronic Health Record (EHR) system, a new telehealth platform, and their billing software. Data silos were preventing clinicians from having a complete patient history, impacting care quality.
Key Challenges:
- Integrating a modern, cloud-based telehealth app with an on-premise, legacy EHR.
- Ensuring strict HIPAA compliance for all data transfers.
- Synchronizing patient demographics, appointments, and billing information in real-time.
- Lack of a standardized data format across different systems.
Our Solution:
We built a HIPAA-compliant integration layer using an Enterprise Service Bus (ESB) pattern to mediate between the different systems.
- Created a secure API wrapper around the legacy EHR system to expose necessary data points.
- Utilized HL7 and FHIR standards to transform and map data between the EHR, telehealth platform, and billing system.
- Implemented a secure messaging queue to handle asynchronous data updates, ensuring no data was lost during system downtime.
- Developed a centralized logging and auditing mechanism to track all data access and modifications for compliance purposes.
Positive Outcomes:
Case Study: Retail Omnichannel Experience
Industry: Retail & E-commerce
Client Overview: A national retail chain with brick-and-mortar stores and a Shopify-based e-commerce site. They faced major challenges with inventory management, where online stock levels did not reflect in-store availability, leading to overselling and poor customer experiences.
Key Challenges:
- Disparate inventory systems for online and physical stores.
- Inability to offer services like "buy online, pick up in-store."
- Manual updates of product information across different channels.
- Lack of a single view of customer purchase history across online and offline channels.
Our Solution:
We architected a central integration hub to synchronize data between their Point of Sale (POS) system, ERP, and Shopify Plus.
- Utilized Shopify's APIs to push and pull order, customer, and product data.
- Integrated with their ERP system to serve as the single source of truth for inventory and pricing.
- Developed a middleware service to sync inventory levels across all store POS systems and the Shopify site in near real-time.
- Connected their CRM to create unified customer profiles, merging online and in-store purchase histories.
Positive Outcomes:
Our Agile & Transparent Integration Process
We follow a structured, collaborative process to ensure your integration project is delivered on time, on budget, and perfectly aligned with your business objectives.
1. Discovery & Strategy
We start by understanding your business goals, existing systems, and data flows. We analyze API documentation, identify integration points, and define a clear strategic roadmap.
2. Architecture & Design
Our architects design a scalable and secure integration solution. We define data models, select the right protocols (REST, GraphQL), and map out the complete workflow and error handling logic.
3. Agile Development
Working in two-week sprints, our developers build the integration components. We provide regular demos and maintain constant communication, ensuring you have full visibility into our progress.
4. Rigorous Testing
Our QA engineers perform comprehensive testing, including functional, performance, and security testing, to ensure the integration is robust, reliable, and handles edge cases correctly.
5. Deployment & Go-Live
We manage the deployment process, whether to a cloud or on-premise environment. We follow a carefully planned go-live strategy to ensure a smooth transition with minimal disruption.
6. Support & Evolution
After launch, we provide ongoing support and maintenance. We monitor performance, manage updates, and help you evolve your integration architecture as your business needs change.
What Our Clients Say
We're proud to build partnerships that drive real results. Here's what our clients have to say about our integration work.
Their team's expertise in both modern and legacy APIs was critical for our project. They seamlessly connected our old ERP to our new cloud CRM, something our previous vendor said was impossible.
The API gateway they implemented for our microservices architecture is flawless. It's secure, fast, and has simplified our entire development workflow. A truly professional and knowledgeable team.
We needed to integrate a dozen third-party services for our new platform. Developers.dev handled everything, from authentication to data mapping, with incredible efficiency and attention to detail.
The security-first approach gave us complete peace of mind. They implemented OAuth 2.0 and end-to-end encryption for our financial data integration, passing all our compliance audits with flying colors.
What impressed me most was the documentation. The Swagger/OpenAPI spec they delivered was so clear that our new mobile developers were able to start using the API in less than a day.
Their AI-enabled monitoring is a lifesaver. We get proactive alerts about potential bottlenecks before they impact our customers. It's a level of service we haven't seen from other development partners.
Flexible Engagement Models
We offer flexible engagement models designed to meet your specific project needs, budget, and long-term goals.
Dedicated Team
A handpicked team of integration specialists works as a seamless extension of your in-house team, giving you full control over the project roadmap and priorities.
Project-Based
Ideal for projects with a clearly defined scope and deliverables. We provide a fixed price and timeline, managing the entire project from discovery to deployment.
Time & Materials
Perfect for projects with evolving requirements. This model offers maximum flexibility, allowing you to adapt the project scope and direction as your business needs change.
Frequently Asked Questions
Have questions? We've got answers. Here are some common queries about our API integration services.
We have extensive experience with a wide range of API types and protocols. We specialize in building and integrating RESTful APIs (the most common standard for web services) and GraphQL APIs (which offer more flexibility for client applications). We also work with older protocols like SOAP for legacy system integration and real-time protocols like WebSockets for applications requiring instant data exchange. Our expertise covers both building custom APIs from scratch and integrating with thousands of third-party APIs from platforms like Salesforce, Stripe, AWS, Google Maps, and many more.
Security is our top priority. We follow a multi-layered, defense-in-depth strategy. This includes: 1) **Authentication & Authorization:** Implementing robust standards like OAuth 2.0 and OpenID Connect to ensure only authorized users and applications can access the API. 2) **Data Encryption:** Using TLS/SSL for all data in transit and encrypting sensitive data at rest. 3) **API Gateways:** Using gateways to manage traffic, enforce rate limiting to prevent abuse, and hide backend system architecture. 4) **Input Validation:** Rigorously validating all incoming data to prevent injection attacks and other common vulnerabilities. 5) **Regular Audits:** Conducting security audits and penetration testing to proactively identify and fix potential weaknesses.
Absolutely. This is one of our core strengths. We understand that many established businesses rely on critical legacy systems that don't have modern APIs. Our approach is to build a "modernization layer" around these systems. We create a secure, modern REST or GraphQL API that acts as a wrapper or facade for the legacy application. This allows your new, cloud-based applications to communicate with the legacy system in a standardized way without requiring a costly and risky rewrite of the original system. This strategy unlocks the value of your legacy data and extends the life of your existing investments.
We follow industry best practices for API lifecycle management to ensure smooth transitions and prevent breaking changes for applications that rely on the API. Our strategy includes: 1) **URL Versioning:** We typically include the version number in the API's URL (e.g., `/api/v1/users`) to make it explicit. 2) **Backward Compatibility:** For minor updates, we strive to maintain backward compatibility so existing integrations don't break. 3) **Deprecation Policy:** For major new versions (e.g., v2), we establish a clear deprecation policy for the old version, providing ample time and detailed documentation for developers to migrate. 4) **Clear Communication:** We maintain a changelog and communicate all updates to API consumers well in advance.
The cost of an API integration project can vary significantly based on several factors: the number and complexity of the systems being integrated, the quality of existing API documentation (if any), the volume of data to be transferred, and the specific security and compliance requirements (e.g., HIPAA, PCI). A simple third-party API integration might take a few weeks, while a complex enterprise integration involving legacy systems could take several months. We provide a detailed, transparent quote after our initial discovery phase where we analyze your specific needs. We offer flexible engagement models (Fixed Price, Time & Materials, Dedicated Team) to best suit your budget and project requirements.
Ready to Build a Connected Enterprise?
Let's talk about your integration challenges. Our experts are ready to help you design a strategy that unlocks data, automates processes, and accelerates your business growth. Schedule a free, no-obligation consultation today.