Application Programming Interface Development

API (Application Programming Interface) development is the process of designing and creating structured pathways that allow different software systems to communicate and share data. It defines how applications interact, what data they can access, how they request it, and how they respond, enabling seamless integration and real-time connectivity.

At Fortunesoft, we build secure, scalable, and high-performance APIs that form the backbone of modern digital ecosystems. Whether you need internal APIs to boost operational efficiency or external APIs to extend your services, we tailor our solutions to match your business goals and technical architecture.

Our development approach ensures flexibility, reusability, and smooth API integration across web, mobile, cloud, and enterprise platforms.

Secure and Scalable Architecture

We follow best practices for authentication, encryption, and compliance to ensure your APIs are protected and can grow with your business.

Performance Optimization

We develop APIs that are engineered for speed, reliability, and low latency, ensuring fast, seamless communication between systems with minimal downtime.

Built for Flexibility and Integration

We support REST, SOAP, GraphQL, and other communication protocols, allowing our APIs to connect with a wide range of applications, services, and third-party tools with ease.

Benefits of Developing API

  • Enhanced System Integration:

    APIs connect different software components, allowing smooth communication and unifying fragmented systems for streamlined operations.
  • Increased Operational Efficiency:

    By automating repetitive tasks and workflows, APIs reduce manual work and free up resources for higher-value activities.
  • Real-Time Data Access:

    It enables instant data exchange between systems, supporting faster decision-making and improved responsiveness.
  • Improved Customer Experience:

    Seamless API integrations ensure consistent user experiences across platforms, apps, and devices boosting satisfaction and engagement.
  • Scalable Architecture:

    Well-designed Application programming interface allows businesses to scale effortlessly by adding new services, features, or third-party integrations without rework.
  • Reduced Development Costs:

    Reusable APIs eliminate redundant coding efforts, helping reduce overall development time and budget.
  • Future-Ready Infrastructure:

    API-first development supports long-term adaptability, ensuring your digital systems evolve with changing technology and business needs.

Why Choose Fortunesoft for Developing API?

  • 16+ Years of Proven Experience

    We bring over 16 years of hands-on expertise in building high-performance, scalable APIs across various industries and platforms.

  • Secure and Compliant Development

    Our APIs follow strict security protocols and compliance standards, ensuring safe and reliable data exchange across all systems.

  • Industry-Focused Solutions

    We offer domain-specific APIs tailored for healthcare, fintech, e-commerce, and more designed to meet unique regulatory and operational needs.

  • End-to-End API Lifecycle Support

    From design and architecture to testing, deployment, and ongoing maintenance, we cover the entire API development lifecycle.

  • Flexible Protocol Support

    We develop APIs that are compatible with REST, SOAP, GraphQL, and other protocols—ensuring seamless integration with your existing systems.

  • Agile and Transparent Process

    We follow agile methodology with milestone-based tracking and regular updates to keep your project on time and in scope.

  • Dedicated API Experts

    Our experienced team focuses solely on creating robust, flexible APIs that align with your goals and tech environment.

Have anything interesting in your mind?Reach out to us.

Custom API Development Services

REST API Development

REST APIs provide lightweight, stateless communication between systems using standard HTTP methods. We build secure and scalable RESTful APIs that power seamless interactions across web, mobile, and cloud platforms, helping businesses accelerate performance and integration.

SOAP API Development

SOAP APIs use a structured, protocol-based approach that makes them well-suited for complex, enterprise-level integrations. Our custom SOAP APIs ensure high security, reliability, and compliance, making them well-suited for industries like healthcare, finance, and government where data integrity is critical.

GraphQL API Development

GraphQL APIs allow clients to request exactly the data they need—nothing more, nothing less. We develop flexible and efficient GraphQL APIs that reduce over-fetching, improve performance, and simplify front-end development in complex, data-heavy applications.

Microservices API Development

Microservices APIs enable independent services to communicate effectively within distributed systems. We design APIs that support modular development, improve fault isolation, and make deployment faster, ensuring your applications scale seamlessly and stay agile.

Developing Mobile App APIs

We create APIs that connect mobile apps to backend systems, ensuring secure and real-time data flow. Our APIs are optimized for performance and battery efficiency, enabling rich, consistent user experiences across iOS and Android devices.

Developing Cloud APIs

Cloud APIs allow applications to interact with cloud services for storage, processing, or analytics. We build APIs that integrate seamlessly with AWS, Azure, Google Cloud, and others—supporting elasticity, uptime, and digital transformation at scale.

IoT API Development

IoT APIs facilitate real-time communication between devices, sensors, and platforms. We develop APIs that support secure, low-latency data exchange to manage smart devices across home automation, healthcare, logistics, and industrial environments.

AI/ML API Development

Our AI/ML APIs connect your applications with intelligent services like recommendation engines, image classification, or predictive modeling. We enable seamless integration of machine learning capabilities to elevate automation and decision-making.

Developing Real-Time APIs

Real-time APIs enable immediate data synchronization and bidirectional communication between systems. Ideal for applications like chat, live tracking, and trading platforms, our real-time APIs ensure low-latency, event-driven data delivery with high reliability.

Middleware API Development

As an API development service provider, we also develop API middleware solutions that act as intermediaries between applications. We develop middleware that optimizes system interactions, enhances interoperability, and facilitates seamless integrations across diverse platforms and technologies.

Backend-as-a-Service (BaaS) APIs

Our BaaS APIs offer ready-made backend services—such as user authentication, file storage, and database access—allowing developers to focus on frontend innovation. We speed up the development process while simplifying backend infrastructure requirements.

Our Services Spread Across

We have offices in San Francisco California, Nashville Tennessee, New York in the US, and Bangalore, Mumbai in India. We also service clients from Delhi NCR, Chennai, Toronto, Montreal, Canada, Dubai UAE, Saudi Arabia, France, Italy, Switzerland, London UK, Netherlands, Ireland, Germany, and other parts of Europe.

API Integration services, API development company, API development services

Custom API Integration Services

  • CRM Integration

    We help businesses connect their customer management systems with other tools to centralize client data, automate workflows, and improve team collaboration for better customer relationships.
  • ERP Integration

    Our integration solutions link enterprise resource systems with critical business applications, streamlining finance, inventory, and HR processes to enhance operational efficiency.
  • Healthcare Integration

    We offer secure integrations for healthcare providers that enable seamless patient data exchange, support telehealth, and improve care coordination while ensuring privacy compliance.
  • Payment Gateway Integration

    We enable secure and reliable payment processing by integrating payment systems that ensure fast, seamless transactions and boost customer confidence.
  • Social Media Integration

    We provide seamless connection to social media platforms, enabling easy content sharing, user authentication, and increased engagement to grow your brand’s reach.
  • eCommerce Integration

    We connect online stores with payment, shipping, and inventory systems to automate order management and deliver smooth, real-time shopping experiences.
  • Cloud Integration

    Our cloud integration services connect your applications with scalable cloud infrastructure, providing flexible storage and computing power to support your growth.
  • Third-Party SaaS Integration

    We link essential SaaS business tools to ensure smooth data flow and process automation, reducing manual work and increasing team productivity.
  • Analytics & BI Tools Integration

    We integrate analytics platforms to unify your data sources, empowering you with actionable insights that drive informed, data-backed business decisions.
  • Communication Integration

    We enhance your applications with integrated messaging, voice, and video features to facilitate real-time communication and improve team collaboration.

Why Fortunesoft Excels in Product Engineering?

At Fortunesoft, we excel in product engineering by delivering high-quality solutions, driving innovation, and ensuring the seamless integration of healthcare technologies.

Product Engineering

Our expertise in healthcare product engineering ensures that your app is developed with a focus on reliability, performance, and compliance with healthcare standards.

Agile Development

We adopt agile methodologies to maintain flexibility and adaptability throughout the development process, allowing for rapid iterations and prompt adjustments based on client feedback.

DevOps Methodology

Integrating development and operations, we ensure smoother deployments, faster time-to-market, and consistent application performance.

Continuous Integration

Our continuous integration practices guarantee that code is regularly tested and integrated, reducing errors and ensuring a seamless development process.

Testimonials

What Clients Say About Us

Working with Fortunesoft on the development of our Iguana Fintech Solutions, Credit Lending Platform and Middleware Solution has been a truly positive experience. Fortunesoft team has shown a deep understanding of middleware architecture, excellent problem-solving skills, and strong expertise in API integration. Their collaborative approach and efficiency have contributed greatly to a smooth and productive development process.

Dr. Telma Ingles
CEO, Kwattel SA

When I have an idea that needs to be translated into a capability, I reach out to you Fortunesoft Team. Thanks for never letting us down. I’ll be glad to refer Fortunesoft team and speak of their skill set and commitment to the projects & timelines. I’ve engaged Fortunesoft team on multiple occasions over a period of 2+ years to build Commerce and payment capabilities on SaaS and OnPrem infrastructures.

Rajagopalan M
Head of Regional Solutions- Ecosystem Partnerships & Marketplaces DBS Bank, Singapore

Fortunesoft IT Innovations has been an outstanding business partner for our company. After a terrible experience using offshore developers, we took a chance on Fortunesoft IT Innovations and they have been excellent to work with. The team is relentless in following agile development processes. They took the time to learn our business and it shows in the quality of the work they do. Their team has a broad range of skillsets and were able to help us with every aspect of our start-up company.

Conner Humphrey
Co-Founder, SalesC2, US

Competence, Service and Support are excellent. Our design tool works great and now generates revenue. The team is with you from building the website to making sure it runs smoothly even after the project is complete. Looking forward to creating more online solutions for our customers with fortunesoft!

Jaysond Miclat
Business Development Director, CollegeWear Inc, California, US

The group was thoughtful, smart, agile, and met all of our requirements.

Sean Colandrea
Co-Founder, ClinicalC2, US

I really appreciate the team’s efforts. It has been a pleasure to see this project become a reality. My hope is that the website will then stand as a testament to all of the effort invested in it by so many people. Thank you again for all of your support and assistance.

Katinka Csizmadi
Communications Assistant Manager, Live Language – Glasgow, Scotland.

A pleasure to work with. The project was actually delivered ahead of schedule. Regular scrum calls were clear and efficient. On budget and ahead of schedule. We will definitely work with them again.

Robert Brown
CEO, Options Away LLC – Chicago, US.

Frequently Asked Questions

Have questions? We are here to help.

Fortunesoft is a leading API development and integration service provider, specializing in delivering end-to-end solutions that enable seamless communication between diverse software systems. With over 16 years of experience, we design, develop, and integrate custom APIs tailored to your business needs, facilitating efficient data exchange and workflow automation across various platforms and industries.
An API development company specializes in creating and integrating APIs that allow software applications to communicate effortlessly, enabling smooth data exchange and automation.
API integration services allow businesses to connect different software platforms, enabling seamless data transfer between applications like CRM, ERP, payment gateways, and cloud services.
API development services involve designing, building, and deploying APIs that enable applications to interact seamlessly, ensuring smooth data exchange and workflow automation.
Yes, we provide regular updates, proactive monitoring, and fast issue resolution to ensure long-term API performance and security.
Investing in developing API improves efficiency, automates manual processes, enhances customer experience, and enables scalability through seamless system integrations.
Businesses commonly use:REST APIs – Fast, lightweight, and widely used for web and mobile apps. SOAP APIs – Secure, structured, and ideal for enterprise applications. GraphQL APIs – Flexible, allowing users to fetch only the required data. Custom APIs – Tailored for specific business needs.
Yes, we provide middleware and custom API solutions to connect legacy systems with modern applications without disrupting operations.
APIs are categorized into four main types: Public APIs (Open APIs), Partner APIs, Internal APIs (Private APIs), and Composite APIs.
Yes, we integrate secure payment gateways with banking systems, e-wallets, and online platforms to facilitate seamless financial transactions.
Yes, our APIs support multi-platform compatibility, enabling seamless integration across web, mobile, and desktop applications.
Fortunesoft serves various locations across the US, including but not limited to:

· New York, New Jersey, Connecticut – NYC, Manhattan
· Baltimore, Philadelphia, Columbia – Washington DC, Virginia, Pennsylvania, Maryland, Richmond, Arlington, Pittsburgh, etc.
· Nashville, Tennessee – Memphis, Gallatin, Franklin
· San Francisco, Bay Area, San Jose – California, Oakland, Fremont, Sunnyvale, Mountain View, Palo Alto, Santa Clara, Cupertino, etc.
· Chicago, Aurora – Illinois
· Florida – Miami, Tampa, Jacksonville, Orlando
· Texas – Dallas, Houston, San Antonio, Austin, Fort Worth
· California – Los Angeles, San Diego, Long Beach
· Boston, Massachusetts – Cambridge, New Hampshire
· Georgia – Atlanta, Columbus
· Colorado, Kansas – Denver, Colorado Springs

We also serve other locations across the United States and Canada. Contact us to find out how we can assist you in your city!

Our Locations

Nashville, US

Fortunesoft IT Innovations, Inc.,

180 N Belvedere Dr, Suite 7C, Gallatin, Nashville, TN 37066, United States

+1-615-298-7395

Bangalore, India

Fortunesoft IT Innovations Pvt. Ltd.,

#19, KMJ Ascend, 17 C Main, 1st Cross Road, 5th Block Koramangala Bangalore, KA 560095, India

080-42005185

San Francisco, US

Fortunesoft IT Innovations, Inc.,

Downtown Sunnyvale 640 W. California Avenue, Suite 210, Sunnyvale San Francisco, CA 94086, United States

+1-615-298-7395

Singapore

Fortunesoft IT Innovations Pte. Ltd.,

30 Cecil Street, # 19-06, Prudential Tower Singapore 049712

+65-3158-1762

Sydney, Australia

Fortunesoft IT Innovations

Australia Square Plaza, Level 4,5 & 12,

95 Pitt Street, NSW, Sydney, 2000

+61-2831-14561

Nashville, US

Fortunesoft IT Innovations, Inc.,

180 N Belvedere Dr, Suite 7C, Gallatin, Nashville, TN 37066, United States
+1-615-298-7395

San Francisco, US

Fortunesoft IT Innovations, Inc.,

Downtown Sunnyvale 640 W. California Avenue, Suite 210, Sunnyvale San Francisco, CA 94086, United States
+1-615-298-7395

Bangalore, India

Fortunesoft IT Innovations Pvt. Ltd.,

#19, KMJ Ascend, 17 C Main, 1st Cross Road, 5th Block Koramangala Bangalore, KA 560095, India
+91-9900002145

Singapore

Fortunesoft IT Innovations Pte. Ltd.,

30 Cecil Street, # 19-06, Prudential Tower Singapore 049712
+65-3158-1762

Sydney, Australia

Fortunesoft IT Innovations

Australia Square Plaza, Level 4,5 & 12,
95 Pitt Street, NSW, Sydney, 2000
+61-2831-14561

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