Custom API Development Services

We develop custom APIs and integrate third-party services to enhance your software’s functionality, connect key business systems into a unified workflow, enable seamless data exchange, and automate business workflows

isoInformation
ISO 27001
Information Security Management System
isoQuality
ISO 9001
Quality Management Systems
clutch1000
Award
Clutch 1000 Service Providers, 2024 Global
isoInformation
ISO 27001
Information Security Management System
isoQuality
ISO 9001
Quality Management Systems
clutch1000
Award
Clutch 1000 Service Providers, 2024 Global

Featured partners

API Development Services We Offer

We offer a full range of API development services, from custom API creation to third-party API integrations to enrich your tech ecosystem

Custom API development

We deliver custom API development services that connect systems, automate workflows, and support scalable product growth

API integration

Our API integration services connect your app with custom and third-party APIs, cloud tools, or platforms, streamlining data flow

API consulting services

We help define the right API implementation strategy to align with your needs, ensuring successful delivery and future-readiness

API testing and modernization

We test and modernize APIs to enhance performance, resolve legacy issues, and ensure secure, stable operation across systems

API design and architecture

Our team delivers a smart, scalable API infrastructure that aligns with your system logic and simplifies integration

Cloud API development

We build from scratch and integrate 3-rd party APIs for a cloud environment to enable flexible scaling and efficient data exchange

Benefits of Custom API Development

Well-built APIs bring real, long-term value to your software. Here’s what you gain by investing in professional API development services

Seamless integration

APIs connect your software with internal systems and third-party services, making data flow effortless

Future-ready scalability

APIs enable you to develop seamlessly, whether you're expanding functionality or scaling system accessibility

Faster time-to-market

With structured APIs, your team can release new features faster and speed up the entire development cycle

Long-term cost efficiency

API integrations simplify system maintenance, helping you cut update time and lower long-term costs
Book a call with our experts to discuss your API needs. We are ready to help you build and integrate stable, scalable APIs aligned with your business goals
Build APIs that fit your product and goals

Projects We Delivered Employing APIs

We use the best API management practices to connect systems, enhance features, and streamline performance across our clients' products
Cross‑Device Video on Demand Platform

Cross‑Device Video on Demand Platform

Challenges solved within the creation of a video streaming platform for a Nordic media company:

  • Development of a cross-device video-on-demand streaming platform with mobile, web, and Smart TV access
  • Integration of payment gateway API to enable secure online transactions for movie rentals and purchases
  • Implementation of Chromecast and AirPlay SDKs to support multi-device streaming from mobile apps to Smart TVs
Online Therapy Services Ecosystem

Online Therapy Services Ecosystem

Challenges solved within the creation of a HIPAA-compliant telehealth system for online therapy services:

  • Development of a full-featured telemedicine SaaS platform with video calls, scheduling, and patient onboarding
  • Integration of Kareo EHR API to sync patient data, appointments, and health records across existing systems
  • Implementation of Stripe for secure payments, Zoom SDK for embedded video calls, and JotForm for collecting intake forms
NFT Video Streaming Platform

NFT Video Streaming Platform

Challenges solved within the blockchain-enabled NFT video marketplace app development:

  • Development of a decentralized streaming platform for managing, monetizing, and watching NFT-based video content
  • Integration of Cere Freeport CRM and Decentralized Data Cloud APIs to handle NFT asset management and off-chain user data storage
  • Payment gateway integration for supporting both fiat transactions and cryptocurrency wallets (e.g., USDT) for user convenience

Learn about Cleveroad’s expertise in Projects Portfolio.

in Projects Portfolio.

Show more

Our Clients Say About Us

Client photo...
DK flagDenmark
FinTech

CTPO of Penneo A/S

"Cleveroad proved to be a reliable partner in helping augment our internal team with skilled technical specialists in cloud infrastructure."

Certifications

We keep deepening our expertise to meet your highest expectations and build business innovative products
ISO 27001

ISO 27001

Information Security Management System

ISO 9001

ISO 9001

Quality Management Systems

AWS

AWS

Select Tier Partner

AWS

AWS

Solution Architect, Associate

Scrum Alliance

Scrum Alliance

Advanced Certified, Scrum Product Owner

AWS

AWS

SysOps Administrator, Associate

Types of APIs We Integrate

We implement APIs to support a wide range of business needs, from payments and messaging to analytics and automation
AI and machine learning
User engagement and marketing
Analytics and behavior tracking
E-commerce and transactions
Payments and billing
Customer and sales management
Shipping and order fulfillment
Location and mapping
Cloud storage and file access
Authentication and user security
Communication and notifications

Why Choose Cleveroad’s API Development Services

Cleveroad is a reliable tech partner ready to handle end-to-end API development and integration services
member

Oleksandr Riabushko

Engagement Director

  • Industry-specific integration experience

    We’ve delivered 50+ API-driven projects across Healthcare, FinTech, Logistics, eCommerce, and Media. Our team knows how to meet HIPAA, PCI DSS, and GDPR requirements, integrate with EHRs, payment gateways, CRMs, and shipping APIs — all while minimizing third-party risks.

  • Secure and maintainable codebase

    We apply secure coding practices from the start, with OAuth 2.0, JWT, and token-based access flows built in. Combined with modular architecture and strong access control practices, your APIs will be secure, easy to maintain, and ready to scale without regressions.

  • Rapid third-party API integration

    We integrate 100+ third-party APIs for various purposes, from Stripe, PayPal, and Salesforce to Twilio, Google Maps, etc. Thanks to reusable patterns and prebuilt connectors, we reduce integration time and avoid disruptions caused by undocumented or unstable third-party changes.

  • Architecture-first approach

    Before coding, we design your API architecture to match business workflows and future scale. This includes selecting the right protocol (REST, gRPC, GraphQL), defining endpoint logic, and planning for caching, rate limiting, and version control, resulting in a clean integration.

Request tailored API building services
Whether you're building custom software, connecting systems, or expanding functionality, we’ll help you build and integrate the right API solution

Industry Contribution Awards

Leading rating & review platforms rank Cleveroad among top software development companies due to our tech assistance in clients' digital transformation.

70 Reviews on Clutch

4.9

Award

Award

Clutch 1000 Service Providers, 2024 Global

Award

Award

Clutch Spring Award, 2025 Global

Ranking

Ranking

Top AI Company,
2025 Award

Ranking

Ranking

Top Software Developers, 2025 Award

Ranking

Ranking

Top Web Developers, 2025 Award

Ranking

Ranking

Top Staff Augmentation Company US, 2025 Award

Questions You May Have
Learn more about custom API development and integration services
What is API development?
API development involves creating interfaces that allow systems to exchange data and trigger actions. A robust API development service supports seamless integration, automation, and scalability across platforms.
Why do you need custom API development services for a company?
Custom API development involves creating APIs that support your unique business needs. It enables smooth api implementation, reduces reliance on third-party limitations, and aligns your software solutions with future goals.
What are the differences between a third-party API and a custom API?
A third-party API is owned and managed by an external provider, limiting your control over features, performance, and changes. In contrast, a custom API is tailored to your business needs, built by your development team, and fully controlled, allowing better alignment with internal systems and long-term flexibility.
What are the benefits of custom API development services?
API development services offer the following major advantages:
  • Custom APIs allow tailored connections between systems and workflows
  • Enable faster, secure api integrations
  • Reduce manual work and cut development costs
  • Improve scalability and long-term maintenance
  • Enhance api performance and flexibility
What are API development services, and why are they important for businesses?
API development services help businesses automate workflows, connect platforms, and improve their overall application development process. With a clear api strategy, companies can scale efficiently and maintain strong performance over time.
Can API development services help with API documentation and maintenance?
Yes. Comprehensive API development services include well-structured api documentation, continuous updates, and long-term support and maintenance services. You can also track API performance, manage versions, and secure endpoints as part of an ongoing service.

Latest Insights on API Development

BlogTechnologies
Top Travel APIs for Building a Great Product

Aug 26, 2025

BlogLogistics
Shipping API Integration

Mar 06, 2025

BlogLogistics
All You Should Learn About Supply Chain API Usage

Jul 06, 2023

Start growing your business with us
By sending this form I confirm that I have read and accept the Privacy Policy