Top API Developers
APIs are the connective tissue of modern software — they let your applications talk to payment processors, third-party data sources, mobile clients, and internal microservices. When that integration breaks or scales poorly, the downstream impact is immediate.
API developers on Clutch are vetted through verified client reviews and detailed project histories, giving you a reliable basis for comparison before you hire. These firms handle the full range of API work: RESTful API design and development, GraphQL implementations, API security and authentication, third-party integrations, and legacy system connectivity. Browse software testing companies to vet your API layer after build, or explore the full API developers directory for detailed firm profiles and pricing.
15 Leaders 15 Contenders
5,335 Companies
List of the Top API Development Services
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Sketch Development
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$10,000+$150 - $199 / hr10 - 49Webster Groves, MOServices provided
10% API Development25% Custom Software Development15% AI Development +5 services10% AI Agents10% AI Consulting10% Cloud Consulting & SI10% Generative AI10% Mobile App DevelopmentSee all 23 projectsSketch Development is an API Development company specializing in API integration and web service development. Their reviews highlight a strong emphasis on effective communication and agile project management, with 100% of feedback noting their organization and transparency. Clients report timely deliveries and impressive planning, with no significant areas for improvement identified.
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$1,000+$25 - $49 / hr50 - 249Austin, TX
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10% API Development70% CRM Consulting and SI10% AI Development +1 service10% IT Staff AugmentationSee all 103 projectsPeeklogic, LLC is a company specializing in API Development Services and Salesforce solutions. According to reviews, the firm is highly regarded for its expertise in API integrations and custom development, maintaining system stability, and providing scalable solutions. 100% of reviewers mentioned their strong project management and responsiveness, highlighting their professionalism and ability to meet client needs effectively.
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$5,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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70% API Development10% Microservices Architecture Services5% Custom Software Development +3 services5% E-Commerce Development5% Mobile App Development5% Web DevelopmentSee all 29 projectsFrontmen is a web development company specializing in creating complex and user-friendly digital platforms, including corporate websites, CRM systems, and mobile applications. They are praised for their methodical approach to information architecture and project management, with 100% of reviewers highlighting their structured and timely delivery. Approximately 80% of reviews commend Frontmen's ability to tailor solutions that align with business objectives and offer high value for cost.
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$25,000+$50 - $99 / hr50 - 249Miami, FL
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10% API Development20% AI Development20% Custom Software Development +5 services15% BI & Big Data Consulting & SI15% IT Staff Augmentation10% AI Agents5% Generative AI5% Robotics Process AutomationSee all 25 projectsBIX Tech is a company specializing in API Development Services, known for its expertise in Automation Process and AI integration. Reviews highlight their commendable project management and responsiveness, with 100% of clients noting their adaptability and proactive communication. However, some feedback suggests initial engagement improvements, specifically in decision-making. Overall, BIX Tech receives high praise for delivering tailored, efficient API solutions that significantly enhance operational capabilities.
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$25,000+$50 - $99 / hr10 - 49Seattle, WA
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10% API Development50% Custom Software Development20% IT Staff Augmentation +2 services10% Web Design10% Web DevelopmentSee all 35 projectsBilberrry is a distinguished web development company specializing in website design, development, and maintenance services. The reviews highlight their exceptional project management, strategic thinking, and technical expertise, with 100% positive feedback on their responsiveness, creativity, and ability to meet deadlines. Over 70% of reviewers appreciate their collaborative approach and individualized attention, reflecting their commitment to aligning with client objectives and delivering outstanding results.
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$5,000+< $25 / hr50 - 249Stamford, England
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10% API Development20% AI Development20% Custom Software Development +4 services15% Web Design15% Web Development10% IT Staff Augmentation10% UX/UI DesignSee all 27 projectsOffshorly is a company specializing in API Development Services, with a focus on delivering innovative and efficient solutions. Reviews highlight their strong understanding of client requirements and dedication to delivery, with 100% of feedback being positive. Clients appreciate their project management, planning, and the team's ability to explore new methods in development processes.
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$10,000+$25 - $49 / hr50 - 249Zymna Voda, Ukraine
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10% API Development30% Custom Software Development20% Web Development +4 services10% E-Commerce Development10% IT Staff Augmentation10% Mobile App Development10% Web DesignSee all 30 projectsBits Orchestra is a company specializing in API Development Services, excelling in API Integration and Web Service Development for advanced cloud-native solutions. Their reviews highlight a 100% positive feedback rate, with 80% of reviewers emphasizing their exemplary project management and transparent communication. Bits Orchestra is commended for their tailored API solutions, fostering trust and reliability among their clients.
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UndisclosedUndisclosed10 - 49Draper, UT
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10% API Development10% AI Development10% Cloud Consulting & SI +7 services10% Custom Software Development10% Enterprise App Modernization10% IoT Development10% Mobile App Development10% UX/UI Design10% Web Design10% Web DevelopmentSee all 28 projectsMystic Media is a versatile software development company specializing in mobile app and web solutions, cloud transitions, and custom software development. Across numerous reviews, clients praise their efficiency, timely delivery, and excellent communication, with 100% positive feedback regarding their project management and collaboration. Approximately 87% of reviewers specifically highlight Mystic Media's adaptability and commitment to exceeding expectations, underscoring their reputation for reliability and client-focused service.
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$1,000+$100 - $149 / hr10 - 49Denver, CO
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10% API Development70% Custom Software Development10% Enterprise App Modernization +1 service10% Web DesignSee all 29 projectsPell Software is a leading provider of API Development Services, specializing in custom API integration and RESTful API Development. With 100% positive feedback, clients commend their efficiency, transparency, and responsiveness. Approximately 67% of reviewers highlight their expertise in API solutions, appreciating their ability to deliver projects on time and under budget. Pell Software consistently aligns with client values and offers excellent communication and support.
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$10,000+$150 - $199 / hr10 - 49Irvine, CA
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10% API Development75% E-Commerce Development10% Web Development +1 service5% Web DesignSee all 21 projectsCoSpark is a web development company specializing in WordPress and WooCommerce solutions. Reviews emphasize their high responsiveness and technical expertise, particularly in server optimization and integration services. Approximately 83% of reviewers commend their ability to tailor solutions to clients' specific needs and budgets, while 100% report satisfaction with project outcomes, highlighting CoSpark's commitment to client success and seamless project management.
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$25,000+$25 - $49 / hr10 - 49Barranquilla, Colombia
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10% API Development20% Custom Software Development20% Web Development +5 services10% IT Staff Augmentation10% IT Strategy Consulting10% Mobile App Development10% UX/UI Design10% Web DesignSee all 9 projectsWawandco is a versatile software development company providing services in web and mobile app development, UI/UX design, and product scaling. The company has received overwhelmingly positive feedback, with 100% of reviewers praising their excellent communication, timely delivery, and alignment with company values. Clients frequently highlight Wawandco's culture and technical expertise as key strengths.
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$5,000+$25 - $49 / hr50 - 249Luzern, Switzerland
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10% API Development20% Custom Software Development20% UX/UI Design +4 services20% Web Development10% AI Development10% Blockchain10% Mobile App DevelopmentSee all 43 projectsSapientPro is a development company specializing in API Development Services, seamlessly integrating complex APIs and data sources. Their reviews highlight 100% positive feedback, emphasizing their technical excellence, responsive communication, and on-time delivery, with 80% of reviewers praising their high-quality, scalable code and seamless integration capabilities.
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$1,000+$100 - $149 / hr2 - 9Vancouver, Canada
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10% API Development40% AI Development40% Custom Software Development +1 service10% Cloud Consulting & SISee all 22 projectsdeltAlyz Corp. is a technology firm specializing in API Development Services and Web Service Development. They are highly praised for their excellent communication skills and efficient project management, with 100% of reviewers highlighting their timely delivery and responsiveness. Clients appreciate their commitment to cost-effectiveness and strong alignment with client values.
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$1,000+< $25 / hr50 - 249Jaipur, India
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20% API Development30% E-Commerce Development20% Web Development +3 services10% Custom Software Development10% Microservices Architecture Services10% Mobile App DevelopmentSee all 14 projectsAmbient Infotech is a versatile technology firm specializing in web development, mobile application development, and e-commerce solutions. Across the reviews, 100% of clients appreciated their attention to detail, proactive communication, and timely delivery, with 80% highlighting their ability to understand and adapt to specific business needs, resulting in enhanced user experiences and increased customer engagement. Overall, Ambient Infotech is valued for its professionalism and cost-effective services.
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$25,000+$50 - $99 / hr10 - 49Sydney, Australia
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15% API Development40% Custom Software Development30% Mobile App Development +1 service15% AI DevelopmentSee all 13 projectsStepInsight is a company specializing in API Development Services, including API Integration and Web Service Development. The reviews reveal a strong focus on timely project delivery and effective communication, praised by 100% of reviewers. A notable 50% increase in potential customers resulted from their solutions. However, some suggest enhancements in quality assurance and proactive issue identification.
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$25,000+$25 - $49 / hr50 - 249
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10% API Development15% AI Development15% Cloud Consulting & SI +6 services15% Custom Software Development15% Mobile App Development10% Low/No Code Development10% Web Development5% BI & Big Data Consulting & SI5% IT Strategy ConsultingSee all 24 projectsDevCom is a comprehensive IT solutions provider specializing in custom software development, CRM systems, and IT infrastructure improvement. The company consistently receives positive feedback for delivering projects on time, with impressive responsiveness and project management skills. Approximately 100% of reviewers commend their value for cost, proactive communication, and ability to understand client needs, while nearly all mention their dedication and quick task execution.
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$25,000+$50 - $99 / hr50 - 249Ljubljana, Slovenia
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10% API Development30% Custom Software Development20% IT Staff Augmentation +3 services20% Web Development10% AI Development10% Web DesignSee all 9 projectsAgiledrop - EU-based Official Laravel Partner is a web development company with expertise in Laravel and a significant focus on Drupal projects. Across their reviews, Agiledrop is consistently praised for their professionalism, technical expertise, and seamless integration with client teams. They have a strong solution-oriented mindset, consistently delivering projects on time with effective communication. Approximately 95% of the reviews highlight their reliability and the high quality of their work.
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$5,000+$100 - $149 / hr10 - 49Houston, TX
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15% API Development15% Enterprise App Modernization10% AI Development +6 services10% Cloud Consulting & SI10% Custom Software Development10% DevOps Managed Services10% ERP Consulting and SI10% IT Strategy Consulting10% Mobile App DevelopmentSee all 7 projectsTevpro is a custom application development company, specializing in web app development, data integration, and software implementation. Across reviews, the company is praised for technical expertise, on-time delivery, and excellent project management. With 100% positive feedback, clients commend Tevpro’s innovative solutions, seamless integration into teams, and the ability to exceed expectations while maintaining budget and timelines.
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$25,000+$150 - $199 / hr50 - 249Los Angeles, CA
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10% API Development10% AI Consulting10% AI Development +7 services10% Application Management & Support10% Custom Software Development10% E-Commerce Development10% Enterprise App Modernization10% Mobile App Development10% UX/UI Design10% Web DevelopmentSee all 14 projectsISBX Corp is a versatile software development company specializing in mobile app and web development. Across the reviews, the company consistently receives high praise for delivering projects on time with a strong focus on client communication and strategic partnership. Approximately 100% of reviewers highlight ISBX's reliability, professionalism, and ability to exceed expectations in design and functionality, along with innovative problem-solving capabilities.
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$5,000+$25 - $49 / hr50 - 249
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10% API Development30% Blockchain25% AI Development +4 services15% Mobile App Development10% Web Development5% AR/VR Development5% Graphic DesignSee all 8 projectsChicMic Studios is a versatile software development company known for its expertise in Application Programming Interface Development and interactive web applications. With 100% positive feedback, clients praise their professional project management, responsiveness, and high-quality output. Their ability to deliver complex projects, such as API integration and interactive apps, efficiently and reliably stands out.
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$5,000+$25 - $49 / hr10 - 49Sheridan, WY
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10% API Development10% Cloud Consulting & SI10% Custom Software Development +7 services10% E-Commerce Development10% IT Staff Augmentation10% IoT Development10% Mobile App Development10% Other Application Development10% Wearable App Development10% Web DevelopmentSee all 12 projectsJetBase.IO is a proficient API Development Services company specializing in creating RESTful API Development and API Integration solutions. The company consistently receives positive feedback, with 100% of reviews praising their technical expertise, communication, and flexibility. Clients commend their project management skills and their ability to deliver projects with timely and effective results, demonstrating smooth integration into existing workflows.
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Undisclosed$25 - $49 / hr10 - 49Poznań, Poland
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15% API Development20% AI Development20% Mobile App Development +4 services20% Web Development10% Application Management & Support10% IT Strategy Consulting5% Other Application DevelopmentSee all 9 projectsSysmo.pl - rozwiązania IT is a technology company specializing in API Development Services, including mobile app development and API Integration. Across their reviews, they are consistently praised for their professionalism, reliability, and solution-oriented approach. With 100% positive feedback, clients commend their ability to deliver complex projects on time and their role as a dependable technology partner.
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$1,000+$25 - $49 / hr10 - 49Dubai, United Arab Emirates
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10% API Development30% Mobile App Development20% Custom Software Development +3 services15% E-Commerce Development15% Web Development10% UX/UI DesignSee all 7 projectsEwaantech is a versatile digital solutions provider specializing in mobile app development, web design, and system integration. They have consistently delivered high-quality services, achieving positive results in customer engagement and digital operations across various projects. Approximately 100% of reviews highlight their effective project management and strong communication skills, with minor suggestions for improvement in integration planning.
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$10,000+$25 - $49 / hr10 - 49Leidschendam, Netherlands
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10% API Development20% Custom Software Development20% Mobile App Development +4 services20% Web Development10% AI Consulting10% AI Development10% E-Commerce DevelopmentSee all 16 projectsGain Impact is a specialist in API Development Services, excelling in building tailored web solutions, including scraping tools and client portals. Their reviews highlight a 100% satisfaction rate, emphasizing their proactive approach, timely delivery, and effective communication. Approximately 50% of reviewers emphasize their problem-solving skills and innovative thinking, making them a reliable partner for complex projects.
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$100,000+$150 - $199 / hr2 - 9Los Angeles, CA
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15% API Development45% Custom Software Development20% Mobile App Development +2 services10% Blockchain10% UX/UI DesignSee all 5 projectsIterate is a technology solutions company specializing in API Development Services, offering expertise in RESTful API Development and API Integration. The company received overwhelmingly positive feedback, with 100% of reviewers highlighting their technical versatility and client-first approach. Their ability to handle complex integrations and deliver scalable, innovative solutions was particularly praised, contributing to enhanced operational efficiency and revenue growth for clients.
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$1,000+$50 - $99 / hr10 - 49
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10% API Development10% AI Agents10% AI Consulting +7 services10% AI Development10% Custom Software Development10% Generative AI10% IT Managed Services10% IT Strategy Consulting10% Other Application Development10% Web DevelopmentSee all 4 projectsSacred Graph is a software development and consulting company specializing in knowledge graphs, graph databases, and compliance solutions. The company has received 100% positive feedback from clients, who commend their expertise, timely project delivery, and strong project management skills. Notably, 90% of reviewers highlight Sacred Graph's deep subject matter expertise and innovative approaches.
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$1,000+$25 - $49 / hr10 - 49Sirsa, India
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10% API Development10% AI Development10% Application Management & Support +7 services10% Custom Software Development10% E-Commerce Development10% Logo10% Mobile App Development10% UX/UI Design10% Web Design10% Web DevelopmentSee all 14 projectsCalidig IT Solutions LLP is a versatile IT service provider specializing in web and mobile application development, offering expertise in platforms such as Flutter and Java. The company is highly rated for its exceptional understanding of client needs, timely project delivery, and excellent communication. Across the reviews, 85% of clients commend their flexibility and commitment, while 90% highlight their reliable project management and transparent communication.
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$1,000+$50 - $99 / hr50 - 249Secunderabad, India
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20% API Development20% CRM Consulting and SI20% Custom Software Development +2 services20% Search Engine Optimization20% Web DevelopmentSee all 3 projectsFist of Success Private Limited is a versatile software development and digital marketing company known for providing custom SaaS solutions and media buying services. The reviews indicate a high level of satisfaction, with 100% of clients highlighting their technical expertise, collaborative approach, and proactive communication. The company excels in understanding business needs and delivering scalable, impactful solutions, consistently meeting project timelines and exceeding expectations.
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$10,000+$25 - $49 / hr50 - 249Ann Arbor, MI
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10% API Development10% AI Agents10% AI Consulting +7 services10% Custom Software Development10% E-Commerce Development10% Enterprise App Modernization10% Generative AI10% IT Staff Augmentation10% Mobile App Development10% Web DevelopmentSee all 4 projectsGenetech Solutions is a proficient web development company renowned for its responsiveness, attention to detail, and effective project management. The reviews reflect a 100% positive sentiment, with clients praising their communication and capability in executing complex web projects. Approximately 75% of reviewers highlight their efficient workflow and alignment with client needs. Clients consistently express their satisfaction with the team's performance and ongoing support.
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$10,000+$50 - $99 / hr50 - 249
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10% API Development15% Custom Software Development15% E-Commerce Development +7 services10% AI Development10% Application Management & Support10% Mobile App Development10% Product Design10% UX/UI Design5% Enterprise App Modernization5% Web DevelopmentSee all 6 projectsFetchly Labs is a versatile technology development company specializing in Shopify, web, and app development. The company boasts a strong culture fit and effective communication, with 100% of reviews highlighting their exceptional project management and innovation. Clients report significant improvements in traffic, lead generation, and user engagement. Overall, Fetchly Labs is recognized for seamlessly integrating with client teams and delivering high-quality solutions.
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$10,000+$50 - $99 / hr10 - 49Cartago, Costa Rica
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15% API Development15% AI Development15% BI & Big Data Consulting & SI +4 services15% Cloud Consulting & SI15% Custom Software Development15% Microservices Architecture Services10% Web DevelopmentSee all 4 projectsSiftia is a technology consulting firm specializing in healthcare data integration and platform development. Across their reviews, 100% of clients praised their expertise, timely project delivery, and alignment with company values. Their adaptable project management and ability to anticipate client needs were frequently commended, with several clients noting their impressive handling of complex data systems.
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$1,000+$25 - $49 / hr10 - 49Torino, Italy
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10% API Development25% AI Development20% AI Agents +5 services15% IT Staff Augmentation15% Mobile App Development5% AR/VR Development5% Application Testing5% Web DevelopmentSee all 15 projectsChainweb Group is a software development company specializing in building scalable and secure software solutions for various industries. Feedback from reviews is overwhelmingly positive, with 100% of clients praising their technical expertise, communication, and commitment to delivering high-quality, tailored solutions. Clients consistently highlight their professionalism, proactive management, and ability to meet and exceed project expectations, making them a reliable partner.
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$10,000+$25 - $49 / hr10 - 49San Francisco, CA
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10% API Development35% Custom Software Development20% AI Development +2 services20% IT Strategy Consulting15% Enterprise App ModernizationSee all 8 projectsTekxai is a dynamic technology solutions provider excelling in AI/ML development, web and mobile app development, and UX/UI design. With 100% positive feedback, clients praise their timely delivery, strong technical expertise, and strategic insights. Approximately 60% of reviews highlight their ability to enhance user experience while aligning with business goals, demonstrating their commitment to innovation and client satisfaction.
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$1,000+< $25 / hr50 - 249Kolkata, India
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10% API Development15% IT Staff Augmentation10% Application Testing +9 services10% Custom Software Development10% E-Commerce Development10% Mobile App Development10% Web Development5% Application Management & Support5% Enterprise App Modernization5% Other Application Development5% Search Engine Optimization5% Social Media MarketingSee all 10 projectsDelostyle Studio Private Limited is a proficient API Development Services provider, offering comprehensive solutions such as RESTful API Development and Web Service Development. With 100% positive feedback, reviewers highlight their seamless delivery, expert technical insights, and strong alignment with client values. Their skilled developers excel in efficient and bug-free project execution, providing excellent value for money.
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$5,000+$50 - $99 / hr10 - 49Buenos Aires, Argentina
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15% API Development30% Custom Software Development15% IT Staff Augmentation +3 services15% Mobile App Development15% Web Development10% Enterprise App ModernizationSee all 9 projectsTec Solutions is a software development company specializing in custom software solutions for diverse industries. Reviews on Clutch.co highlight their professional project management, timely delivery, and strong communication skills, with 100% of reviews noting their responsiveness. Clients emphasize their ability to understand business needs and deliver effective solutions, with around 80% expressing satisfaction with results and no significant areas for improvement.
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$5,000+$25 - $49 / hr10 - 49London, England
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10% API Development20% AI Agents20% AI Consulting +4 services20% AI Development10% Custom Software Development10% Mobile App Development10% Web DevelopmentSee all 3 projectsHeka Software is a versatile software development company specializing in web and mobile development, UX/UI design, and enterprise resource planning (ERP) solutions. With a strong focus on client needs, they have consistently delivered high-quality, tailored solutions, resulting in 100% positive feedback from clients. Common themes in their reviews include excellent project management, strong technical performance, and a collaborative approach, although there's a noted need for improved end-user documentation.
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$10,000+$100 - $149 / hr10 - 49London, England
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20% API Development70% BI & Big Data Consulting & SI10% AI DevelopmentSee all 4 projectsInsyteGroup is a provider of comprehensive API Development Services, specializing in data connectivity, dashboard reporting, and datalake development. They received 100% positive feedback, with clients highlighting their timely delivery, flexibility, and effective project management. Reviewers were particularly impressed by their responsiveness and commercial acumen.
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$10,000+$25 - $49 / hr10 - 49Ahmedabad, India
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20% API Development30% Web Development20% Custom Software Development +2 services20% Mobile App Development10% IT Staff AugmentationSee all 4 projectsRorix Technologies Private Limited is an API Development company specializing in Application Programming Interface Development and integration services. They receive 100% positive feedback for delivering reliable and smart solutions, effectively automating workflows, and enhancing operational efficiency. Clients like their proactive project management and innovative approach.
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$1,000+< $25 / hr10 - 49Beri, India
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30% API Development50% Web Development10% Application Testing +1 service10% DevOps Managed ServicesSee all 4 projectsMytholog Innovations is a development company specializing in platform development, software development, and AI solutions. They have received unanimously positive feedback, with 100% of reviewers highlighting their timely delivery and high-quality work. Clients described the team as friendly, flexible, and an excellent cultural fit, with no areas for improvement noted across reviews.
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$5,000+$50 - $99 / hr10 - 49Surfleet, England
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20% API Development20% Web Development10% AI Development +5 services10% Cloud Consulting & SI10% Custom Software Development10% Digital Engineering10% IT Staff Augmentation10% Mobile App DevelopmentSee all 6 projectsAtomise is a reputable company specializing in API Development Services, including API Integration and RESTful API Development. Reviews highlight their exceptional professionalism, rapid adaptation, and alignment with client values, with 100% positive feedback. Clients commend their ability to enhance user experience and efficiently manage complex functions, demonstrating flexibility and commitment to timely delivery despite evolving requirements.
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$10,000+$50 - $99 / hr10 - 49Madrid, Spain
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10% API Development15% Custom Software Development10% AI Development +8 services10% E-Commerce Development10% Product Design10% UX/UI Design10% Web Design10% Web Development5% Branding5% IT Staff Augmentation5% Low/No Code DevelopmentSee all 7 projectsLyra is a versatile digital agency specializing in web development, software solutions, and digital platform creation. Throughout its projects, lyra has received a high percentage of positive feedback for its professionalism, adaptability, and project management skills. Approximately 86% of reviewers commend lyra's problem-solving abilities and commitment, despite occasional feedback suggesting room for improvement in maintaining focus during long-term engagements.
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$10,000+$150 - $199 / hr50 - 249Wilder, KY
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10% API Development30% AI Development20% Application Management & Support +2 services20% Custom Software Development20% Mobile App DevelopmentSee all 15 projectsRed Hawk Technologies is a versatile technology solutions company specializing in custom software development, mobile app development, and database management. Across their reviews, 90% of clients highlight their technical expertise, project management skills, and commitment to deadlines. Notably, 75% of reviewers appreciate their responsive communication and culture fit. Overall, clients commend their value for money, consistent delivery, and efficient project execution.
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$10,000+$25 - $49 / hr50 - 249Castrop-Rauxel, Germany
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10% API Development20% Custom Software Development20% Mobile App Development +4 services15% Enterprise App Modernization15% Web Development10% AI Development10% E-Commerce DevelopmentSee all 22 projectsChudovo is a versatile company focusing on API Development Services and custom web-based platform solutions. Their reviews highlight a 100% positive feedback rate, emphasizing their technical expertise, tailored approaches, and effective project management. Approximately 50% of reviewers specifically commend their ability to integrate APIs seamlessly while maintaining robust security and compliance standards.
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$25,000+Undisclosed50 - 249Blue Ash, OH
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25% API Development25% Cloud Consulting & SI25% Custom Software Development +2 services15% IT Strategy Consulting10% UX/UI DesignSee all 5 projectsIngage Partners is a consulting and IT services firm specializing in custom development, staff augmentation, and project management solutions. The company has received overwhelmingly positive feedback, with 98% of reviewers praising their project management skills and the alignment of company values with clients. Common themes include their dedication to community service and their ability to integrate seamlessly with client teams.
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$10,000+$50 - $99 / hr2 - 9Koog aan de Zaan, Netherlands
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35% API Development35% Web Development10% AI Consulting +2 services10% Generative AI10% Mobile App DevelopmentSee all 5 projectsRemote Reason is a technology consultancy specializing in AI and scalable software solutions. They have received overwhelmingly positive feedback, with a focus on their ability to develop complex software infrastructures and improve website functionality and speed. Approximately 80% of reviewers commend their project management skills and autonomous work style, while 70% highlight their ability to communicate effectively and deliver innovative solutions.
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$10,000+$25 - $49 / hr10 - 49Banská Bystrica, Slovakia
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20% API Development30% Web Development20% Custom Software Development +3 services10% IT Strategy Consulting10% Mobile App Development10% Web DesignSee all 9 projectsDigital Solutions Studio is a company specializing in API Development Services and web solutions, known for its efficient and proactive approach. With a 100% positive feedback rate, clients commend the team for their rapid response times, innovative ideas, and comprehensive project management. Approximately 50% of reviews highlight their expertise in API Integration and RESTful API Development, underscoring their capability in delivering seamless and functional API Solutions.
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$10,000+$25 - $49 / hr10 - 49Warszawa, Poland
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10% API Development30% IT Staff Augmentation20% Custom Software Development +4 services10% AI Development10% Mobile App Development10% Robotics Process Automation10% Web DevelopmentSee all 6 projectsCleverLabs specializes in API Development Services, focusing on creating high-load API hubs for seamless integration with IoT devices and HRM platforms. Their reviews highlight their excellent technical skills, on-time delivery, and clear communication. Impressively, 100% of reviewers mentioned their speed and work quality as standout attributes.
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$75,000+$150 - $199 / hr10 - 49Otford, England
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10% API Development35% Custom Software Development15% E-Commerce Development +3 services15% Mobile App Development15% Web Development10% Enterprise App ModernizationSee all 3 projectsecce. is a prominent API Development company known for its expertise in API web services and interface design. The firm receives overwhelmingly positive feedback, with 100% of reviewers praising their project management and responsiveness. Their customer-centric approach and proficiency in the latest development technologies are frequently highlighted, underscoring their excellence in delivering API solutions.
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$25,000+$100 - $149 / hr2 - 9Hilversum, Netherlands
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15% API Development30% Custom Software Development20% Enterprise App Modernization +2 services20% Web Development15% DevOps Managed ServicesSee all 6 projectsVolare Software is a full-stack development company renowned for its expertise in web and custom software solutions, employing agile methodologies. Across varied projects, clients commend Volare Software for its effective communication, adaptability, and high-quality deliverables. Approximately 100% of the reviews highlight their transparency, collaborative spirit, and innovative problem-solving capabilities, underscoring a consistent theme of client satisfaction with no significant areas for improvement noted.
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$10,000+$50 - $99 / hr50 - 249Berlin, Germany
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15% API Development25% Custom Software Development15% Mobile App Development +4 services15% Web Development10% AI Consulting10% Cloud Consulting & SI10% IT Strategy ConsultingSee all 9 projectsProductDock AG is an API Development company providing valuable API solutions, including web service development and REST API programming. The company is commended for its flexibility and commitment, with 80% positive feedback highlighting their alignment with client values and adaptability to changing requirements. Some clients noted initial team fit challenges, but praised the performance once resolved.
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A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.
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List of the Top 15 API Development Services
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$1,000+$25 - $49 / hr50 - 249Austin, TX
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$150 - $199 / hr10 - 49Webster Groves, MO
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
Ability to deliver
34.8/40.016.8/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
70% API Development30% Other -
$5,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35.4/40.017.4/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
30% API Development70% Other -
$25,000+$25 - $49 / hr1,000 - 9,999São Paulo, Brazil
Ability to deliver
36.3/40.016.6/20 Reviews9.9/10 Clients & Experience9.8/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
37.1/40.018.2/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
37.3/40.018/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
10% API Development90% Other -
$5,000+< $25 / hr50 - 249Stamford, England
Ability to deliver
37/40.019/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249San Antonio, TX
Ability to deliver
36.7/40.017.8/20 Reviews10/10 Clients & Experience8.8/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249Zymna Voda, Ukraine
Ability to deliver
36.5/40.018.8/20 Reviews10/10 Clients & Experience7.7/10 Market PresenceService focus
10% API Development90% Other -
UndisclosedUndisclosed10 - 49Draper, UT
Ability to deliver
36.5/40.017.4/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
10% API Development90% Other -
$1,000+$100 - $149 / hr10 - 49Denver, CO
Ability to deliver
36.5/40.017.4/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
10% API Development90% Other -
$50,000+$25 - $49 / hr50 - 249Mumbai, India
Ability to deliver
35.8/40.017.8/20 Reviews9.8/10 Clients & Experience8.2/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$150 - $199 / hr10 - 49Irvine, CA
Ability to deliver
35.9/40.016.4/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
10% API Development90% Other -
$50,000+$150 - $199 / hr10 - 49Toronto, Canada
Ability to deliver
34.1/40.016.2/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
25% API Development75% Other -
$10,000+$150 - $199 / hr50 - 249Wilder, KY
Ability to deliver
35.4/40.017/20 Reviews10/10 Clients & Experience8.4/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$25 - $49 / hr10 - 49Barranquilla, Colombia
Ability to deliver
35.5/40.017.6/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr50 - 249Luzern, Switzerland
Ability to deliver
35.2/40.018.4/20 Reviews10/10 Clients & Experience6.8/10 Market PresenceService focus
10% API Development90% Other -
$1,000+$100 - $149 / hr2 - 9Vancouver, Canada
Ability to deliver
35.5/40.016.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% API Development90% Other -
$50,000+$50 - $99 / hr10 - 49
Ability to deliver
35.2/40.015.8/20 Reviews10/10 Clients & Experience9.4/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249Cape Town, South Africa
Ability to deliver
34.9/40.015.8/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
10% API Development90% Other -
$10,000+< $25 / hr50 - 249Ciudad de México, Mexico
Ability to deliver
34.7/40.016.4/20 Reviews10/10 Clients & Experience8.3/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249Castrop-Rauxel, Germany
Ability to deliver
34.7/40.018/20 Reviews10/10 Clients & Experience6.7/10 Market PresenceService focus
10% API Development90% Other -
$1,000+$100 - $149 / hr10 - 49
Ability to deliver
31/40.017/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
45% API Development55% Other -
$10,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
Ability to deliver
33.9/40.018/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
15% API Development85% Other -
$1,000+< $25 / hr50 - 249Jaipur, India
Ability to deliver
33.2/40.018/20 Reviews8/10 Clients & Experience7.2/10 Market PresenceService focus
20% API Development80% Other -
$25,000+$50 - $99 / hr10 - 49Sydney, Australia
Ability to deliver
34.1/40.018/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
15% API Development85% Other -
$10,000+$50 - $99 / hr10 - 49Timișoara, Romania
Ability to deliver
34.6/40.016.8/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
10% API Development90% Other -
$1,000+$25 - $49 / hr10 - 49Surat, India
Ability to deliver
34/40.016.4/20 Reviews9.1/10 Clients & Experience8.4/10 Market PresenceService focus
15% API Development85% Other -
$5,000+$50 - $99 / hr50 - 249České Budějovice, Czech Republic
Ability to deliver
34.1/40.017.8/20 Reviews9.4/10 Clients & Experience6.9/10 Market PresenceService focus
10% API Development90% Other
API Development FAQs
Clutch features companies that design, build, and document scalable APIs that power integrations and modern applications quarterly based on a proprietary methodology. The top API development companies for 2026 include:
API developers design, build, and maintain the interfaces that allow software systems to communicate. Most of these dedicated firms offer a multitude of specialized and tailored services, such as:
- Defining data structures and endpoints
- Writing server-side logic
- Implementing authentication protocols like OAuth 2.0 or API keys
- Handling rate limiting and error responses
- Documenting the API for internal or external consumers
Many API developers also handle integration work — connecting your product to third-party services like Stripe, Salesforce, or Twilio.
Recent Clutch pricing data shows that simple third-party integrations generally fall in the $5,000 – $25,000 range, while custom-built API platforms for enterprise applications can exceed $100,000.
Hourly rates for API development firms typically range from $25 – $149 per hour, depending on a range of factors, including the firm's location, seniority, and specialization. Compare pricing against other providers and thoroughly review the cost breakdown to ensure transparency before signing any contracts.
A development firm brings structured processes, dedicated QA, and built-in redundancy. Firms also tend to have formal security practices, code review workflows, and experience managing integrations at scale.
For complex builds involving multiple third-party systems, authentication layers, or ongoing versioning, a company typically offers more stability, accountability, and long-term support capacity than a freelancer.
Match the AP development firm's experience to your technical requirements. A team with a deep REST and Node.js background will serve a different need than one specializing in GraphQL or enterprise middleware.
After that, make sure to review their Clutch profiles for relevant project examples and ask candidates how they handle API versioning, backward compatibility, and security vulnerabilities. Shortlist the top two or three promising partners that meet your initial assessment, then schedule an interview with their team to discuss your project and personally gauge their fit.
Watch for firms that jump straight to implementation without a discovery or design phase — poorly planned APIs are expensive to refactor. Other red flags that you should be aware of include no mention of documentation deliverables, vague answers about authentication and data security, and unwillingness to share code samples or past integration case studies.
Get matched with the 5 best-fit agencies for your project—in 4 minutes or less.