REST APIs are fundamental to modern application development, providing secure, scalable, and real-time communication between systems. Our experienced REST API developers help organizations design and implement API-first architectures that enhance system integration, automate business processes, and create seamless digital experiences.
Create, develop, manage, and scale RESTful APIs that connect your web, mobile, cloud, and enterprise systems through secure APIs.
Trusted by Clients Across the Globe
19+
Years Into Development
50+
Projects Delivered
12+
Countries
100+
Satisfied Clients
Key statistics
Velan Apps offers comprehensive REST API lifecycle management services, including API design, development, integration, security, testing, and documentation. We specialize in building fast, secure, scalable, and well-documented RESTful APIs that support cloud platforms and microservices architectures, enabling businesses to achieve greater agility, connectivity, and operational efficiency.
Every industry operates like a different natural habitat; it has its own unique rhythms and unique problems. Our bespoke software is flexible to the requirements of every sector.
Software Development
Our SaaS solutions are based on compliance, data security, and patient-centric workflows.
Core Solutions
Our REST API development and integration process follows a disciplined software development lifecycle from first conversation to long-term support.
Determine business objectives, integrations and technical requirements.
Create RESTful resources, endpoints, versioning, and data models.
Create scaled APIs based on REST architecture.
Authentication, authorisation, encryption and compliance controls.
Functional, performance, security and contract tests.
Implementation of API observability and CI/CD automation.
Hire dedicated API developers from Velan Apps, an Offshore API development partner with a US time zone overlap. Assemble a team for the role you require:
We are a REST API Development Company USA delivering secure, scalable, and high-performance API solutions for modern businesses. As a trusted Custom API Development Service Provider, we specialize in designing, building, and integrating RESTful APIs tailored to your technology stack, security requirements, and business goals.
Our expertise includes Third-Party API Integration Services, enabling seamless connectivity between applications, platforms, and cloud systems. We also provide REST API Consulting Services USA to help organizations design API-first architectures, improve system performance, and ensure long-term scalability.
We offer flexible hire REST API developers USA models and fully managed outsource API development services USA with complete transparency and agile delivery.
“Velan Apps transformed a mess of old endpoints into a well-documented REST layer. Our integrations now work predictably — something we hadn't experienced in years.”
100% Predictable Integration Performance
Richard Hawes
VP of Engineering · CoreBridge Systems
“They built our public REST API and SDKs from the ground up. Partner onboarding that previously took weeks now takes a single day.”
Partner Onboarding Reduced from Weeks to 1 Day
Leila Fontaine
Head of Platform · Nexio SaaS
“Our CRM, billing, and analytics are now connected through a single REST API with webhooks. Manual data entry between systems is completely gone.”
Zero Manual Data Entry Across 3 Core Systems
Daniel Osei
Director of Operations · Vantage Commerce
“VelanApps have end-to-end capability, which differentiates them from other IT services companies. They provided custom software development, completed a full cloud migration to AWS, instituted QA automation, and performed post-launch support — all under a single, 10-month engagement with no need to juggle multiple vendors. Their members communicated clearly, are technically absolutely knowledgeable, and always delivered on time. We have renewed our contract thrice, and we still depend on their service.”
3× Contract extensions from VelanApps for 10 months of continuous delivery
Marcus Webb
Full-Time Client · Miami, FL, USA
“We wanted to create an AI-powered mobile app that could analyse live inventory data and recommend tailored product bundles. VelanApps emerged as one of the very few companies with an actual command over AI-powered mobile app development. They built a powerful ML pipeline, wrote Swift/Kotlin native layers, and integrated our recommendation engine seamlessly. The app is now reactive to each user's shopping behaviour in real time, providing an extremely bespoke experience.”
38% boost in average order value within Quarter 1 of the launch
Nathan Clarke
Founder · Phoenix, AZ, North America
“While searching various software outsourcing companies, VelanApps stood out due to their transparent and systematic development process. We had highly detailed sprint reports every 2 weeks, weekly calls for constant communication, and a project manager dedicated to our project who had a solid understanding of our product vision.”
Launched our SaaS platform in 18 weeks — 22% under anticipated spend
Kevin Harrington
VP Product · Streamline SaaS Company · Atlanta, USA
“We had outgrown our website six times over and needed a full reimagination of our digital footprint. VelanApps delivered end-to-end website development services — strategy, UX design, custom WordPress development, CRM integration, and SEO architecture. Their consultative approach stood out; the team first sought to understand our business goals before writing a single line of code.”
47% rise in leads from organic sources in 90 days. Bounce rate dropped from 74% to 38%
Thomas Gallagher
Director of Marketing · Denver, CO, USA
Building Success Together
Want to hear more from our clients? Read all reviews and see what they have to say.
Build secure, scalable, and high-performance APIs tailored to your business needs.
Rapidly accelerate digital transformation through tailored REST API development services. Velan Apps designs, develops, secures, and integrates RESTful APIs that facilitate seamless communication among web, mobile, SaaS, cloud, enterprise, and third-party applications.
We develop the connective layer your products operate on — whether in the form of web API development services or the scale of a complete RESTful API development engagement.
Why Businesses Choose REST APIs
Leverage Building Blocks: Rapidly interconnect systems using standardised HTTP protocols
Platform Independence: Compatible with mobile apps, web apps, cloud services, and IoT devices
Better Scalability: Stateless communication allows horizontal scaling without bottlenecks
Faster Performance: Lightweight JSON payloads improve response times and reduce bandwidth consumption
Increased Security: OAuth 2.0, JWT, API gateways, encryption, and granular access control
Less Maintenance Labour: Version-controlled APIs make upgrades and future improvements easier
Reusable Business Services: Build once and reuse across multiple products and channels
Cloud-Native Compatibility: Ideal for AWS, Azure, Google Cloud, Kubernetes, and microservices architectures
The cost of REST API development depends on the scope, complexity, and security requirements of your project. Understanding these key factors helps you plan your budget and timeline accurately.
Number of Endpoints: Total REST endpoints, resource types, and data models to be designed and built
Authentication Requirements: OAuth 2.0, JWT, API keys, SSO, and multi-layer security implementation needs
Third-Party Integrations: Number of external systems, services, and platforms to be connected
Security Standards: Compliance requirements such as OWASP, GDPR, HIPAA, and encryption protocols
Scalability Requirements: Expected request volumes, throughput, and infrastructure for high availability
Documentation Scope: OpenAPI/Swagger specs, developer portals, and SDK generation needs
Rapidly accelerate digital transformation through tailored REST API development services. Velan Apps designs, develops, secures, and integrates RESTful APIs that facilitate seamless communication among web, mobile, SaaS, cloud, enterprise, and third-party applications.
We develop the connective layer your products operate on — whether in the form of web API development services or the scale of a complete RESTful API development engagement.
Why Businesses Choose REST APIs
Leverage Building Blocks: Rapidly interconnect systems using standardised HTTP protocols
Platform Independence: Compatible with mobile apps, web apps, cloud services, and IoT devices
Better Scalability: Stateless communication allows horizontal scaling without bottlenecks
Faster Performance: Lightweight JSON payloads improve response times and reduce bandwidth consumption
Increased Security: OAuth 2.0, JWT, API gateways, encryption, and granular access control
Less Maintenance Labour: Version-controlled APIs make upgrades and future improvements easier
Reusable Business Services: Build once and reuse across multiple products and channels
Cloud-Native Compatibility: Ideal for AWS, Azure, Google Cloud, Kubernetes, and microservices architectures
The cost of REST API development depends on the scope, complexity, and security requirements of your project. Understanding these key factors helps you plan your budget and timeline accurately.
Number of Endpoints: Total REST endpoints, resource types, and data models to be designed and built
Authentication Requirements: OAuth 2.0, JWT, API keys, SSO, and multi-layer security implementation needs
Third-Party Integrations: Number of external systems, services, and platforms to be connected
Security Standards: Compliance requirements such as OWASP, GDPR, HIPAA, and encryption protocols
Scalability Requirements: Expected request volumes, throughput, and infrastructure for high availability
Documentation Scope: OpenAPI/Swagger specs, developer portals, and SDK generation needs
We use a proven REST API technology stack to design, build, secure, and deploy reliable integrations across cloud, enterprise, and microservices architectures.
REST API Frameworks
Frameworks & Runtimes
Languages
Database & Storage
Relational
NoSQL & Realtime
Cloud & API Gateway
Cloud Providers
DevOps & CI/CD
DevOps & CI/CD
API Testing & QA
Test Frameworks
AI & ML API Integrations
AI & ML Platforms
Designed by certified experts with proven experience in building scalable, secure enterprise integrations.
Pricing is scope and complexity-based — you receive a fixed quote after a quick discovery call. Most engagements fall into one of these three levels.
Not sure which plan fits your project? Enquire about cost and get a tailored estimate for your requirements.
Trusted REST API Development Partner
500+ integrations delivered across REST, GraphQL, and enterprise systems — 19+ years of experience, 30 countries
Our Credentials
API-First Development Methodology
APIs designed as products — with clear specifications, contracts, and documentation established from the outset
Enterprise Integration Skills
Extensive experience integrating ERP, CRM, HRMS, and supply chain systems across industries
Secure API Design
OAuth 2.0, encryption, API gateways, and OWASP-compliant security testing as standard
Cloud-Native Engineering
Scalable, containerised APIs deployed on AWS, Azure, and Google Cloud
DevOps Automation
Built-in CI/CD pipelines, observability, and automated testing from day one
Dedicated Development Teams
Your own full-time REST API design, engineering, and security specialists
Transparent Project Delivery
Clear milestones, regular demos, and full reporting throughout every engagement
Long-Term API Maintenance
Monitoring, optimisation, and upgrades long after launch — not just at delivery
See our blog for the most recent information on industry news, tech developments, and professional advice.
Software DevelopmentOne of the costliest mistakes a startup can make when building a web app is to create the whole app before testing it. Therefore, it is quite usual for startups to make an MVP (Minimum Viable Product) first. An MVP only has the core functions to go live fast and gather feedback.
Software DevelopmentTo test the market without making a new product can be costly and suicidal. That is the reason why many startups and businesses opt for MVP development services to come up with products quickly. Minimum Viable Product (MVP) – a product with the least functionality.
WordPressThis blog explains how offshore WordPress development helps businesses reduce costs, accelerate project delivery, and access skilled WordPress professionals globally. It highlights why startups, SaaS companies, agencies, and eCommerce businesses increasingly outsource WordPress development to countries like India to overcome high local hiring costs and talent shortages. Two main hurdles face ambitious companies throughout their […]
This is where our clients vision met our expertise. Explore some of the masterpieces we created for our clients
Leverage API engineering services to design robust, secure, and scalable APIs for modern cloud and microservices systems.
