An API (application programming interface) is software that connects several systems to exchange data. It’s not a database in itself but allows connecting to various databases and data points. Most APIs allow integration with cloud services. APIs can perform a range of functions when it comes to bringing different software components together and creating a custom logic for extracting and sharing certain data from various services.

Do I need a custom API?

There are many public APIs used by businesses (those that offer out-of-the-box connections), as well as prebuilt APIs that can be customized. The major advantages of developing a custom API include a higher level of security, flexibility, and scalability. Besides, public APIs will have a higher user load and in case of errors and outages, you won’t have any control over how and when the problem is fixed. With a custom-built API, you’ll be in control of its usage and can have a team that will provide ongoing support to ensure its smooth performance at any given moment.

How to find the right API development company?

When searching for development services, trust a company with extensive experience in the field and check if it has similar projects in the portfolio. Also, learn about the collaboration models and communication tools offered by a development company to make sure that the process is convenient for you. At Binary Studio, we’re not just focusing on maintaining technical expertise but are always engaged in the products we’re building. Our developers will research the whole context of the business’ tech stack and operation to have a better understanding of what technical solutions will work best.

Do I need API documentation?

API documentation is a crucial aspect of API development services, so make sure to discuss it with your development company. API documentation explains how to use an API and its services, making it easier for your developers to understand how an API is integrated into other systems you’re using, how the data is shared, etc.

Custom API Development Services

Partner with Binary Studio to build an API strategy that optimizes cost and improves access without compromising security. We ensure your APIs perform reliably and scale with your business from 100 users to 10,000 and more.

200+
Delivered projects
20+
Years of business excellence
4.9
Review rate on Clutch

Why choose API developers from Binary Studio

Top 0.5% engineering talents

At Binary Studio, we rigorously select candidates who are at the top of their game. Moreover, we’re committed to continuously training our specialists and building a culture of knowledge sharing that allows us to maintain a high standard of quality.

Expertise in API development

If you’re looking for an experienced API development company, Binary Studio has been working with APIs from the moment they were introduced in the tech world. Our engineers know what makes for robust and scalable API design and architecture.

Unparalleled API security

Access control and activity monitoring are essential for the security of APIs. Our engineers adhere to the best security practices throughout the API lifecycle to make sure that the final product isn’t vulnerable to any threats.

Smart API scaling

When building APIs for any platform, we are keeping flexibility and modularity in mind so that it’s easy to scale the solution at any given moment. You can rest assured that the development will adjust to your growing needs.

Fast kick-off of your development project

Upon discussing your needs and requirements, we can build a dedicated team or provide you with developers in just 2 weeks or even faster. We value your time and are committed to bringing fast results without compromising the quality.

Loyalty and long-lasting cooperation

Many of our clients stay with us for the stages of software maintenance and return to us with other projects. Whether you need API development or other services, we strive to understand your business and build long-lasting relationships.

Our API development services

Custom software development

We can build virtually any software and supply it with custom APIs that seamlessly connect your systems, third-party services, and devices. Whether you need a custom API for an existing solution or a whole digital ecosystem, we’re up for the task.

Software audit

Our software experts can assess the quality, performance, and security of your existing APIs. We identify bottlenecks, optimize integrations, and ensure your infrastructure can scale with business growth.

ChatGPT API development

If you want to enhance your software with generative AI, we can integrate ChatGPT solutions and other LLM APIs into apps, websites, and business tools, customizing workflows to improve user experience and automate communication.

Database development

We create APIs that streamline database interactions, ensuring fast, secure, and reliable data exchange. Whether SQL or NoSQL, our solutions are designed for high availability and efficient data handling.

API developers for hire

You can scale your team with skilled API developers who can integrate into your workflows. Our specialists bring deep expertise in building, securing, and maintaining APIs across diverse industries and technologies.

API testing

Our QA specialists are well-versed in API integration testing. Using both manual and automated testing, we’ll guarantee that your final solution meets expectations for functionality, performance, and security.

The process of API development

As an API development agency, we’re usually going through the following steps to deliver a final product:


1	Analyzing business requirements	We’ll discuss the type of API service you need and your particular use cases to understand what technologies to utilize, what specialists to allocate for your project, and what will be the scope of work.	1-2 weeks	Head of PMO Senior Full Stack Engineer
2	Providing a development team	Based on the requirements and agreed scope of work, we’ll provide you with the best API engineers. We can also build a whole team with a solution architect, developers, and testers for your project.	3-6 weeks	Project Manager Senior Full Stack Engineer
3	Developing and testing an API	Once the team is ready, we’ll build an API that functions as expected for your business. Our specialists will deliver an API that responds fast, has smart authentication rules, and can easily be scaled.	3-6 months	API Development Team
4	Scaling an API upon demand	After the development and release, you can request changes to the API based on your needs. Designed with the auto-scaling setup and flexibility in mind, your API can quickly increase its capacity or get other improvements.	Ongoing	API Development Team

Need an API to share and control data?

Let’s discuss your API development needs.

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Customer success stories

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Industries we work with

Fintech

With API development, financial businesses can streamline payment processing, banking integrations, and personalized user experiences. We build APIs that meet strict compliance standards while driving innovation in banking, investments, and payments.

Real estate

Proptech solutions powered by APIs can aggregate real-time property data, automate valuations, and connect multiple MLS platforms. We help real estate companies unlock insights and streamline decision-making.

Healthcare

Custom APIs enhance the way healthcare providers manage patient records, lab results, and electronic health data. Our solutions comply with HIPAA, GDPR, and other healthcare regulations while boosting efficiency.

Energy sector

API development is essential for analyzing weather, emissions, and energy consumption data. We develop APIs that integrate with third-party sources to support smarter, greener, and more efficient energy operations.

IoT software

We connect IoT devices with cloud platforms and analytics tools through secure, scalable APIs. From smart homes to industrial IoT, our solutions enable real-time monitoring, control, and insights.

Insurance

APIs can streamline claims management, risk analysis, underwriting, and other processes crucial for insurance companies. We help insurers improve customer experiences and operational efficiency with customized, secure integrations.

Looking to build a scalable and secure API?

We’re here to help you build a custom API for any service.

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“

One thing that continues to impress us is the exceptional quality of engineers that Binary Studio is able to provide us

Mark Volkmann - CEO /

Massage Book

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“

Binary Studio has really been pivotal in FanAngel's success

David Burton - CEO /

FanAngel

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“

Binary Studio is an ideal software development partner and our experience working with them has been fantastic

Pascal Desmarets - Founder & CEO /

Hackolade

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Mark Volkmann

CEO / MassageBook

Charleston, SC

David Burton

CEO / FanAngel

San Luis Obispo, CA

Pascal Desmarets

Founder & CEO / Hackolade

Brussels, Belgium

Who needs API development services

Startups

Through custom API development, we help startups accelerate product development with APIs that integrate third-party services and support MVP launches. We make sure that API solutions are flexible and scalable, adapting to your needs as your startup grows.

SMBs

Small and medium businesses benefit from APIs that modernize legacy systems, improve workflows, and connect with external platforms. We build practical solutions that enhance efficiency and competitiveness.

Entreprises

Enterprises rely on APIs to automate processes, unify complex systems, and scale globally. With 20+ years in development, we’ve partnered with many enterprise clients to deliver robust APIs that power sustainable growth.

API development tech stack

HTML
CSS
JavaScript
Vue
React
Angular
Electron

Node.js
.Net
PHP
Java
Python
Go

IOS
Android
Swift
Flutter
React Native
Xamarin
Cordova
PWA

Cyrpess
Selenium
Playwrite
Puppeteer
Mocha
Chaj
Jasmine

SQL Server
MySQL
PostgreSQL
MongoDB
SQLite
Azure SQL
Amazon RDS
Google Cloud SQL

Express.js
Fastify
Laravel
Symfony
CakePHP
Ruby on Rails
Django
Flask

AWS
Azure
Google Cloud
Digital Ocean

Docker
Kubernetes
AWS Dev Tools
Azure DevOps
Google Dev Tools
Jenkins

API development service FAQ

What is an API?

An API (application programming interface) is software that connects several systems to exchange data. It’s not a database in itself but allows connecting to various databases and data points. Most APIs allow integration with cloud services. APIs can perform a range of functions when it comes to bringing different software components together and creating a custom logic for extracting and sharing certain data from various services.
Do I need a custom API?

There are many public APIs used by businesses (those that offer out-of-the-box connections), as well as prebuilt APIs that can be customized. The major advantages of developing a custom API include a higher level of security, flexibility, and scalability. Besides, public APIs will have a higher user load and in case of errors and outages, you won’t have any control over how and when the problem is fixed. With a custom-built API, you’ll be in control of its usage and can have a team that will provide ongoing support to ensure its smooth performance at any given moment.

How to find the right API development company?

When searching for development services, trust a company with extensive experience in the field and check if it has similar projects in the portfolio. Also, learn about the collaboration models and communication tools offered by a development company to make sure that the process is convenient for you. At Binary Studio, we’re not just focusing on maintaining technical expertise but are always engaged in the products we’re building. Our developers will research the whole context of the business’ tech stack and operation to have a better understanding of what technical solutions will work best.
Do I need API documentation?

API documentation is a crucial aspect of API development services, so make sure to discuss it with your development company. API documentation explains how to use an API and its services, making it easier for your developers to understand how an API is integrated into other systems you’re using, how the data is shared, etc.

Ready to build an API?

Book a free consultation to discuss your idea:

We’ll analyze your requirements
We’ll provide you with the best API developers
You’ll be overseeing the development process

Christina Berko

Client Manager

Schedule a meeting

What makes for a high-quality API service

Here are the major things to ask your development company about and control in the process of building an API:

Smart permissions

An API should have authentication rules to prevent unauthorized access and exposure to cyber threats. The best practices that ensure secure access to APIs include OAuth2 and API keys to manage access among different users.

Data encryption

Since APIs are all about accessing and sharing data, it’s crucial to protect data that is transmitted between a server and a user. An experienced API development company will use cryptographic protocols to encrypt API traffic.

Performance monitoring

To track the usage of your API service, you might need to have a logging and analytics system in place. With it, you’ll be able to evaluate API’s performance, error rates, and usage volume to understand its efficiency and make improvements.

When you might need API development services

When you need to access data from different sources

With a custom-built API, you can send requests to access the data from third-party servers, as well as connect different software components you’re using internally. This helps have unified access to valuable data.

When you need to connect applications used by your business

With custom API development, you can bring any software applications together and create new functions that connect different programs used by the employees or customers of your company.

When you want to provide new services to customers

If you want to offer your customers certain features that require access to and analysis of data, and it’s not possible to do so within your existing systems, developing an API service can be a great choice.