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API Development and Integration

Reduce time-to-market, cut development costs, and streamline the data flow with API integrations. We have 13 years of experience in building & integrating REST, GraphQL, SOAP, and gRPC APIs.

Deliver faster. Grow your business. Innovate

Need to ship an innovative product on a tight budget? Win over the competitor’s users with better functionality? Connect multiple enterprise systems with smooth data flow? APIs can do it all!

Cut the development costs

Reuse existing code, reducing the time and effort required to develop new functionality.

Enhance analytics

Get access to a wider range of data to gain insights and make data-driven decisions.

Streamline the data flow

Share data between different systems and applications, eliminating the need for manual data entry.

Extend functionality

Integrate third-party features and data sources regardless of the underlying technology.

Open up new revenue streams

Allow other companies to enjoy your company's data and functionality as you monetize the API.

Secure your application

We design APIs with security in mind, protecting sensitive data and reducing the risk of breaches.

Our API integration & development services

MindK has delivered over 170 complex web and mobile projects with internal and third-party APIs. We use this experience to provide a variety of API-related services for startups and enterprises.

API consulting services

Work with experienced consultants to design the right API strategy for your business. We’ll help you define the requirements, select the best architectural style, take care of security, and help to solve roadblocks for your team.

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Third-party API integration services

If you need software integration services, we’ll help you select the best API partners and connect your solution with third-party systems using the latest best practices. MindK works with REST, GraphQL, SOAP, and gRPC APIs.

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Custom API development

Whether you need to connect microservices with internal APIs or open up your data to partners, MindK can help you design and build custom APIs. Enjoy high performance, multi-layer security, clear documentation, and correct error handling.

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API Testing Automation

Test your business logic with easily maintained scripts. Our experts can create a reliable test strategy, select priority cases, optimal tools and frameworks. They’ll design and implement ROI-focused scripts, and help maintain the suite.

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Artificial Intelligence API integrations

Integrate your solution with cutting-edge Machine Learning, Computer Vision, and Natural Language Processing APIs. The examples range from OpenAI GPT3 API to AWS Rekognition API for image and video recognition.

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API monitoring & alerting

Make sure all your services and systems function as smoothly as possible. Our engineers can implement an API monitoring and alerting system to keep an eye on availability, behavior, and performance of your APIs.

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API integration and
development success stories

  • Choo i Skyen

    Creating a public API to facilitate new partnerships

    Custom SaaS product, Norway

    AlreadyOn is building a cloud-based CRM and association management application. Some of its new customers requested extensive customization and the ability to integrate the app into their own products via an API. 

    • 1 public REST API developed.
    • High availability, scalability, and security requirements. 
    • 3 large customers acquired via the API.
  • Aim Analytics

    Integrating third-party APIs for data analytics

    Data-driven ad management solution, the USA

    Our client needed to develop a first-of-its-kind application to analyze the effectiveness of TV and radio ad campaigns. To collect a wide range of advertising data, we integrated the system with third-party tools such as: 

    • Marchex, BVS, and Extreme Reach integrations for data collection and analytics.
    • AWS Kinesis, AWS Glue, and AWS Lambda to process huge files without decreasing performance.
  • The Lactation Network

    Two-way HIPAA-compliant Salesforce integration

    Custom medical system, the USA

    Our team is developing a massive medical system to connect patients and lactation specialists.

    • HIPAA-compliant integration with the company’s Salesforce as a single source of truth. 
    • Google Outlook, eFax, and eSignature integrations.
  • Image recognition & medical data exchange integrations

    Custom medical application, the USA

    MindK is helping to build a HIPAA-compliant app for rapid and reliable drug testing. For this purpose, we integrated the system with a variety of third-party APIs:

    • AWS Rekognition for image and video recognition.
    • Quest Diagnostics integration for booking an appointment at a chosen clinic.
    • Accio Data for employee screening.
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    Improve your development speed and extend functionality with custom API integrations – payment processing, location-based services, real estate, logistics, video streaming, IP telephony, data analytics, AI & Machine Learning, and more.

    Our API development
    tech stack

    Since MindK works with APIs on most projects, we have experience with a large number of API development technologies – using both serverless and on-premise (Kubernetes) approaches.
    • NestJS NestJS
    • Express.js Express.js
    • Amazon Web Services Amazon Web Services
    • Microsoft Azure Microsoft Azure
    • DataDog DataDog
    • Prometheus Prometheus
    • Grafana Grafana
    • ELK stack ELK stack
    • Loki Loki
    • MySQL MySQL
    • PostgreSQL PostgreSQL
    • MongoDB MongoDB
    • ArangoDB ArangoDB
    • Kubernetes Kubernetes
    • Amazon EKS Amazon EKS
    • Azure Kubernetes Service (AKS) Azure Kubernetes Service (AKS)

    More services to improve your product

    Our API development & integration process

    Requirements analysis

    Our Business Analysts and Tech Lead collect your requirements, analyze the intended audience, and create the technical specifications for the task.

    API selection/architecture design

    We'll help yo#3 API integration/developmentu select the best integrations or design an API with an architecture that accounts for your non-functional requirements.

    API integration/development

    Our engineers will implement the selected design using an iterative approach. We'll optimize performance and write API documentation.

    Integration testing

    Using API virtualization, we can start doing all sorts of testing before your API is finished.

    API monitoring and improvement

    We'll deploy your API using a secure gateway and monitor its vital metrics to make further improvements.

    Choose your service option

    You can work with MindK as IT consultants or API development contractors.

    Why MindK

    We're a custom API development & integration company with a proven track record.

    A team of top minds

    Only 4 out of 100 qualified engineers have the skills to join our team. The result shows in everything – from what we deliver, to how we communicate.


    13+ years of excellence

    APIs have been a part of every project we've done at MindK since 2009. We're constantly looking for the latest best practices in API development.


    Cloud-native experts

    We have AWS certifications and experience with cutting-edge cloud tools to ensure high non-functional requirements for your APIs.


    9/10 clients recommend us

    96% of clients are ready to recommend MindK to their network. We strive to build long-term partnerships that last on average 5 years.


    Every project at MindK involves building an API as a backend for single-page applications. This simplifies development, improves performance and scalability, which leads to better UX.


    • Zaheer Mohiuddin

      Zaheer Mohiuddin

      Co-Founder, Levels.fyi

      Zaheer Mohiuddin

      Not your typical outsourcing

      «The quality of work and the interactions with the team felt akin to anyone that I've worked within the Bay Area in technology. MindK's expertise is for real and the bar is high. This isn't your typical outsourcing shop, MindK has top-notch engineers and PMs.»

    • Jordan Crone

      Jordan Crone

      Chief Experience Officer, Melody

      Jordan Crone

      communication flow

      «Our project has been going smoother than I could have imagined... It's the first time I've worked with a dev team a distance away that didn't have major (or any, for that matter) hiccups or have things lost in communication. I wish we could snatch them and make them a part of our team.»

    • Al Hariri

      Al Hariri

      Co-Founder, Vitagene

      Al Hariri

      Results-oriented and

      «I can tell you confidently that they are different from your regular agency that just wants to charge as much money for their work as they can get away with. MindK is completely results-oriented and outcome-driven.»

      Develop and integrate API
      with ease

      Tell us about your challenges and we'll help
      turn them into a big opportunity

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        Frequently Asked Questions

        • What is API integration and why is it important?

          Application Programming Interfaces allow two applications to communicate with each other. APIs enable applications to share data and functionality. This increases development speed, efficiency, and improves the UX.

        • How do I know if I need to build an API?

          You may need an API if you have two or more applications that must communicate with each other. If you find yourself manually copying and pasting data between applications or entering the same data into multiple systems, it may be time to consider developing an API.


        • How do I integrate an API into my existing applications?

          The integration process will depend on the specific API and applications you are working with. Typically, you’ll need to get an API key or access token, which allows your application to authenticate and communicate with the API. You then need to write code into your application that uses the API, to access data or functionality.

        • How much does API integration cost?

          The cost of API integration can vary widely depending on several factors. They include the number of APIs, their complexity, the programming languages and frameworks used, and the level of customization required.

          The costs can range from $500 to $100,000 and more. Other factors that can affect the cost of API integration include

          • API vendor fees. Some APIs charge fees for usage or access, increasing the overall costs.
          • Development team. Hiring a more experienced team costs more upfront. But this often results in a higher quality integration that requires less maintenance in the long run.
          • Maintenance and support. These costs add up over time, so factor them in when considering the total cost of ownership.

          It’s important to work with a trusted and experienced development team to help assess your specific needs and provide an accurate estimate of the cost of API integration.

        • What factors should I consider when choosing an API integrations vendor?

          Before you hire an API developer, consider factors such as the provider’s expertise, experience, and track record in API development and integration. Also, assess their ability to work with your existing systems and provide ongoing support and maintenance.

        • How can you ensure that my API is secure?

          MindK follows the latest best practices for API security. Using Amazon Web Services (AWS) gives us access to a lot of helpful services for Web Application Firewalls (WAF), application & infrastructure access control, system monitoring & alerting, and more. We use the platform’s recommended architecture, as well as encrypt the data in transit and at rest if necessary. 

        • How can I measure the success of my API?

          The success of your API is measured by tracking metrics such as usage, traffic, revenue, and customer satisfaction. You can also gather feedback from developers and end-users to identify areas for improvement and opportunities for innovation.

          Let's build great
          API integrations

          Send us a request with a brief description of the problem you want to solve and any requirements
          you might have about your project's timeframes and the scope of work.

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          We’ll contact you within the next 24 hours. In the interim, you can take a look at our portfolio or check us out on Facebook, LinkedIn, Twitter or Instagram.