Custom API development and integration services

At Altoros, we deliver web API development services, enabling smooth integration with your existing apps. According to your specific requirements, we will help you to streamline business processes, while leveraging reliable, robust, and secure development approaches.

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API development services

Custom API development
Custom API development

Altoros develops robust and highly available APIs for traffic-intensive desktop, mobile, and cloud applications, as well as WebSocket, firmware / middleware, browsers, databases, and operating systems. We successfully build robust and secure APIs for any industry to meet your specific requirements.

API integration services
API integration services

Third-party API integration allows both startups and large enterprises to connect to an external service to provide key functionality to applications. Our experts at Altoros integrate systems as well as create dedicated APIs for web applications connecting software systems and applications. We use REST, XML-RPC, JSON, SOAP, and other communication methods to make sure your APIs work properly.

API as a service (APIaaS)
API as a service (APIaaS)

With our assistance, you can build an API-first business by developing an API-as-a-service (APIaaS) platform. Our web and protocol development approach includes the use of HTTP/HTTPS, XML, XHTML, JSON, Java, SOAP, EDI, AJAX, TCP/IP, and/or REST API development services.

API adoption
API adoption

We help to quickly onboard your developers by providing necessary materials demonstrating the features of the solution. Our team designs user-friendly API documentation, developer portals, code samples for every API endpoint across multiple programming languages, auto-populated sandbox API keys, and other elements that make it easier for developers to adopt and use an API.

Developer marketing
Developer marketing

Getting the word out is key for any product, and APIs are no exception. Traditional marketing doesn't work here. Developers are a unique audience and their needs are different. Altoros helps to develop and execute an API marketing strategy by leveraging marketing tools, such as value added content (how-tos, demos, cheat sheets, and sample applications), webinars, meetups, hackathons, etc.

API security
API security

APIs can create additional security risks, as they increase the number of ways in which malicious actors could get into applications and cause chaos. Therefore, when developing APIs, careful design and security controls are essential. Altoros provides end-to-end API security protection with authentication, authorization, privacy, non-repudiation, and attack prevention. Our engineers develop APIs with comprehensive support for the latest security and regulatory standards, such as JOSE (JWK, JWS, JWE), PCI-DSS, and GDPR.

API testing automation
API testing automation

Altoros provides end-to-end testing solutions for REST and SOAP APIs. We use unit, functional, and load testing to check the performance of individual APIs, its end-to-end functionality, and the performance of API layers. Our QA team can cover the most frequently called API functions by logging the calls for each performed function.

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Our API development expertise

Frequently Asked Questions

  • How do I get started with the API development?

    In the beginning, please, share with us your project description via a contact form or e-mail. Next, we will schedule a call with you and our expert. Through the call, we will gain more insights into your project and will be able to guide you on how to execute it.

  • Do you handle custom API development, or do you just use existing ones?

    We build fully functional, custom web APIs, and other integration tools specifically based on your needs and software systems. We do leverage existing integration methods and combine them with custom code if needed in order to create a fully personalized solution that streamlines your systems.

  • Do you customize the APIs to my specific needs?

    Yes! We are used to working with both industry standards for data and information systems, as well as unique and custom needs. We work with you to use standard applications where possible and create tailored solutions where necessary.

  • How long will it take for the API development?

    Having a large and experienced team of API developers, we will assure you the fastest turnaround time. However, before we give you an accurate time frame for your API development, we need to examine your project requirements.

  • What is a 2-week zero-risk trial period in Altoros for API developers?

    We put customer satisfaction as a major priority. A key differentiator between us and other software engineering companies is that we guarantee efficient custom software development. In case you are not satisfied with the results achieved, we will not charge you for the work done in the course of the first two weeks of the project.

  • How much does it cost to build a custom API?

    The pricing of developing custom APIs can vary based on several factors. The development and integration process may take from a few days to several weeks. The complexity of the data transfer, especially in the case of bidirectional communication, can influence the time and cost involved. The mapping of fields between systems is crucial, and the presence of corresponding fields in the interface of the receiving system impacts the API development process. If fields in the destination system are not readily available for displaying data received from another system, additional customization may be required, affecting both time and cost considerations for API development. The size of the development team and software engineers’ expertise can also influence the cost, as well as a technology stack, the timeline of a project, its scale, etc.

    On average, a simple app can take around 2–3 months, while a more complex app could extend to 6–12 months. The typical time frame for delivering a proof of concept (PoC) or a prototype is 2–4 weeks, and an MVP generally spans 2–3 months. Through established software development practices and project management methods, you can expect initial deliverables within 4–6 weeks from the project start.

    Our specialists will work with you to understand your business requirements, offering a detailed estimate. A project manager will closely engage with stakeholders, assisting in prioritizing the backlog within the allocated budget and helping you to define the minimum viable product (MVP) components, if needed. This will ensure that the most essential functionality is delivered first, allowing for early user feedback.

  • Why choose Altoros as an API development company?

    Altoros combines 20+ years of IT industry experience, cutting-edge technologies, and a team of 350+ experts to deliver outstanding services tailored to your business needs. With 1,400+ projects delivered across 30+ countries, we have the expertise and knowledge necessary to tackle the most complex API development projects across diverse industries.

    The team at Altoros will work closely with you to gather the specific requirements and provide a comprehensive solution methodology. Offering end-to-end services, we will guide you through every stage of the API development process—from understanding your problem, conceptualization and design to development, testing, continuous integration / deployment, etc. We build APIs for scalability, optimal performance, and stringent security measures, ensuring a robust foundation for your applications. Furthermore, the experts at Altoros are available to provide ongoing support and maintenance, as well as API consulting services. Our advantages extend to providing both onsite and offsite development, catering to different time zones.

    At Altoros, we offer a quick onboarding process that allows for having an API developer or small development team ready within 72 hours after signing a contract, so you can start the project as soon as possible. In addition, our result-oriented approach ensures that you will see the first tangible outcomes within 4–6 weeks of the project kickoff.

    Standing behind the quality and performance of the services, Altoros offers a range of guarantees, including a 2-week risk-free trial period. If you are not satisfied with a developer, we offer the option to replace him/her with a new one or do not charge you for this candidate. Moreover, with resource hiring guarantee, Altoros assures that if we initiate a replacement, the onboarding of a new team member is on our tab up to 80 hours.

    At Altoros, collaboration is key. We maintain open communication channels, involving you in the development process and valuing your feedback at every step. Our transparent pricing models and efficient development processes ensure that you receive a cost-effective solution without compromising on quality.

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Alex Tsimashenka
Business Development Director
+1 (650) 419-3379