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
6,102 Companies
List of the Top API Development Services
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$10,000+$150 - $199 / hr10 - 49Webster Groves, MO
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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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$5,000+$25 - $49 / hr10 - 49
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10% API Development10% AI Agents10% AI Development +7 services10% Application Management & Support10% Computer Engineering10% Custom Software Development10% Mobile App Development10% Other Application Development10% Web Design10% Web DevelopmentSee all 1 projectsSeedGeorgia is a technology development company specializing in creating digital marketplaces and applications. They received exclusively positive feedback, with 100% of reviewers praising their professionalism, communication, and timely delivery. Clients particularly appreciated their ability to align with company values and deliver solid outcomes, such as onboarding over 100 specialists and achieving national recognition.
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$1,000+$25 - $49 / hr50 - 249Austin, TX
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10% API Development65% CRM Consulting and SI10% IT Staff Augmentation +2 services10% Low/No Code Development5% AI DevelopmentSee all 106 projectsPeeklogic, LLC is a distinguished provider of API Development Services and Salesforce solutions, consistently praised for their high-quality work and seamless project delivery. With over 90% positive feedback, clients commend their exceptional communication, timely delivery, and bespoke API solutions, highlighting their commitment to understanding unique business needs and supporting long-term growth.
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$25,000+$50 - $99 / hr10 - 49Seattle, WA
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10% API Development40% Web Development30% Custom Software Development +2 services10% IT Staff Augmentation10% Web DesignSee all 36 projectsBilberrry is a comprehensive web development and design company known for providing user-centered solutions with a strong focus on project management. Across multiple reviews, clients consistently praise Bilberrry for their meticulous planning, timely delivery, and flexibility in adapting to evolving project needs. Approximately 98% of the feedback highlights their excellent communication, strategic thinking, and ability to deliver tailored solutions that align with client objectives.
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$5,000+$100 - $149 / hr10 - 49Denver, CO
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10% API Development70% Custom Software Development10% Enterprise App Modernization +1 service10% Web DesignSee all 31 projectsPell Software is a distinguished company specializing in API Development Services and web service development, offering tailored solutions for complex integration challenges. With a 100% satisfaction rating in reviews, clients consistently commend their responsiveness, efficiency, and alignment with company values, highlighting their expertise in API solutions and seamless project execution.
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$5,000+< $25 / hr50 - 249Stamford, England
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10% API Development30% AI Development30% Custom Software Development +3 services10% IT Staff Augmentation10% Web Design10% Web DevelopmentSee 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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$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 24 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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$10,000+$150 - $199 / hr10 - 49Irvine, CA
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10% API Development75% E-Commerce Development10% Web Development +1 service5% Web DesignSee all 22 projectsCoSpark is a web development and WordPress management company specializing in WooCommerce services. They receive consistently positive feedback, with 100% of reviews praising their responsiveness, technical expertise, and problem-solving capabilities. Clients commend their efficient project management and ability to improve site performance, with notable achievements like a 15% increase in online orders and a 38% reduction in rage clicks. Overall, CoSpark is recognized for their professionalism and effective solutions tailored to client needs.
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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 16 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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$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+$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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$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 services company specializing in custom software development, IT infrastructure improvement, and CRM solutions. Across multiple reviews, clients consistently praise DevCom for their prompt delivery, professionalism, and cost-effectiveness, with over 90% of feedback highlighting their adept project management and innovative solutions. Many clients, approximately 70%, emphasize their ability to tailor solutions to specific business needs, resulting in improved operational efficiency and customer satisfaction.
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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 31 projectsBits Orchestra is a web service development company specializing in API integration and cloud-native solutions. With 100% positive feedback, reviews highlight their exceptional project management, on-time delivery, and expertise in enhancing system scalability and user experience. Their tailored API solutions and commitment to security and compliance make them a trusted partner in the financial sector.
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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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$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 8 projectsTevpro is a versatile software development company specializing in web and application development, data integration, and IT solutions. Their reviews on Clutch reveal consistent praise for their project management, technical expertise, and ability to meet deadlines, with over 90% of clients highlighting these strengths. Clients appreciate Tevpro's professionalism and value for cost, with numerous testimonials noting their seamless integration into client teams and successful project outcomes.
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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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$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 30 projectsBIX Tech is a company specializing in API Development Services, offering expertise in automation, data integration, and application programming interface solutions. Their projects are praised for high-quality collaboration, flexibility, and efficient delivery, with 100% of reviewers highlighting their responsiveness and technical readiness. The company successfully consolidates complex data systems and enhances analytical capabilities. Overall, BIX Tech maintains a strong focus on client satisfaction and delivering tangible results.
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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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$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 10 projectsProductDock AG is a web service development company specializing in API development services, including API integration and RESTful API development. The reviews indicate positive feedback, highlighting their good project management and flexible response to client needs, with approximately 100% commitment to the team. Some reviews mention challenges with team fit initially, but overall performance was strong once the right team was in place.
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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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$25,000+$150 - $199 / hr10 - 49Nashville, TN
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10% API Development10% AI Development10% Application Management & Support +7 services10% Custom Software Development10% E-Commerce Development10% Enterprise App Modernization10% IoT Development10% Mobile App Development10% UX/UI Design10% Web DevelopmentSee all 22 projectsTwin Sun is a specialized API Development company praised for its expertise in API Integration and Application Programming Interface Development. Based on client reviews, 100% of feedback is positive, highlighting timely deliverables, excellent communication, and outstanding work ethic. Clients commend the team's passion and expertise, making them a preferred choice for complex web service development 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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$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, excelling in Application Programming Interface Development and API Integration. With a 100% positive feedback rate across reviews, clients commend their speed, communication, and innovative approach. Approximately 50% of reviewers highlight their proactive project management and adaptability, making them a preferred choice for projects requiring REST API Programming and Web Service Development.
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$50,000+$50 - $99 / hr10 - 49Kyiv, Ukraine
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10% API Development20% Custom Software Development10% AI Agents +6 services10% Application Testing10% DevOps Managed Services10% Enterprise App Modernization10% IT Staff Augmentation10% UX/UI Design10% Web DevelopmentSee all 14 projectsGearheart.io is a company specializing in API Development Services, particularly focusing on API integration and web service development. The overall feedback from their reviews is overwhelmingly positive, with clients praising their accountability, timely delivery, and seamless project management. Notably, 100% of reviewers highlight their collaborative approach, likening them to an internal team rather than an external vendor.
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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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$10,000+$50 - $99 / hr2 - 9Sheridan, WY
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10% API Development50% E-Commerce Development10% Conversion Optimization +3 services10% Email Marketing10% Mobile App Development10% Web DevelopmentSee all 3 projectsAqsa Shahzad Official LLC is a versatile digital solutions provider, offering services in website development, email marketing, and SEO. The company consistently receives positive feedback, with clients praising their communication, reliability, and ability to deliver projects on time. Approximately 100% of the reviews highlight their project management skills and dedication, while some suggest expanding their service portfolio to include ads on Meta and Google.
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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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$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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$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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$1,000+$25 - $49 / hr10 - 49Torino, Italy
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10% API Development25% AI Development20% AI Agents +4 services15% IoT Development15% Mobile App Development10% Wearable App Development5% Web DevelopmentSee all 20 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+$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 / hr50 - 249Kolkata, India
Services provided
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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$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 9 projectsTekxai is a versatile tech solutions company offering AI/ML development, web and mobile app development, UI/UX design, and CMS customization. With 100% positive feedback from clients, they are praised for their strong project management, timely delivery, and high-quality outputs. Notably, 75% of reviewers highlight Tekxai's responsiveness and ability to tailor solutions to client needs, making them a reliable partner for diverse tech projects.
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$10,000+$100 - $149 / hr10 - 49London, England
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25% API Development50% BI & Big Data Consulting & SI25% AI DevelopmentSee all 6 projectsInsyteGroup is a company specializing in API Development Services, focusing on data connectivity and reporting solutions for businesses. Clients highlight their timeliness, flexibility, and effective communication. Impressively, 100% of reviewers praise their commercial acumen and responsiveness, with no areas for improvement noted.
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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+$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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$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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$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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$1,000+< $25 / hr10 - 49
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10% API Development25% E-Commerce Development15% AI Development +4 services15% Custom Software Development15% Web Development10% AI Agents10% Mobile App DevelopmentSee all 5 projectsSoftheight is a web development company specializing in enhancing e-commerce platforms and creating brand-aligned websites with a focus on user experience. Across three projects, 100% of reviewers praised their attention to detail, responsiveness, and ability to meet deadlines. Clients appreciated their collaborative approach and practical solutions, although minor feedback suggested clearer initial planning could be beneficial.
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$10,000+$50 - $99 / hr10 - 49Madrid, Spain
Services provided
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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$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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10% API Development30% Mobile App Development10% AR/VR Development +5 services10% Custom Software Development10% IT Staff Augmentation10% Staffing10% UX/UI Design10% Web DevelopmentSee all 24 projectsKevych Solutions is an API Development company specializing in web and mobile development, backend services, and API integration. Reviews highlight their professionalism, technical expertise, and commitment to delivering projects on time and within budget. Over 90% of reviewers commend their problem-solving skills and effective project management, noting significant improvements in application functionality and performance.
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$10,000+$25 - $49 / hr50 - 249Castrop-Rauxel, Germany
Services provided
10% API Development20% Custom Software Development20% Mobile App Development +4 services15% Enterprise App Modernization15% Web Development10% AI Development10% E-Commerce DevelopmentSee all 30 projectsChudovo is a specialized provider of API Development Services, excelling in backend architecture and API integration for complex business needs. Clients reported a 100% success rate in project delivery, highlighting Chudovo's technical expertise and commitment to quality. Approximately 50% of reviewers emphasize their adeptness in understanding industry-specific requirements and delivering tailored solutions.
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$25,000+Undisclosed50 - 249Blue Ash, OH
Services provided
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
Services provided
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+$50 - $99 / hr10 - 49Warszawa, Poland
Services provided
10% API Development30% IT Staff Augmentation20% Custom Software Development +4 services10% AI Development10% Mobile App Development10% Robotics Process Automation10% Web DevelopmentSee all 7 projectsCleverLabs is a company specializing in API Development Services, including RESTful API Development and Web Service Development. Their reviews highlight a 100% positive feedback rate, emphasizing their technical skills, speed, and communication quality. Notably, 100% of reviewers commend their project management and delivery on time.
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$1,000+< $25 / hr50 - 249New Delhi, India
Services provided
10% API Development30% IT Staff Augmentation15% AI Development +4 services15% Low/No Code Development10% Custom Software Development10% Mobile App Development10% UX/UI DesignSee all 12 projectsTRYNOCODE is a technology company specializing in API Development and related services, including UI redesign and fund management functionalities. Reviews highlight a 100% success rate in achieving project goals, with commendations for their commitment and flexibility, though improvements in development testing and documentation are suggested.
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$25,000+$150 - $199 / hr50 - 249Los Angeles, CA
Services provided
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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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+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
36.3/40.017/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% API Development70% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
38/40.019.2/20 Reviews10/10 Clients & Experience8.8/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
37.9/40.018.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
10% API Development90% 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 -
$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+$50 - $99 / hr10 - 49
Ability to deliver
36.3/40.017/20 Reviews9.7/10 Clients & Experience9.6/10 Market PresenceService focus
15% API Development85% Other -
$5,000+$100 - $149 / hr10 - 49Denver, CO
Ability to deliver
36.8/40.017.8/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
10% API Development90% Other -
$5,000+< $25 / hr50 - 249Stamford, England
Ability to deliver
36.5/40.018.6/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
10% API Development90% Other -
$1,000+$100 - $149 / hr2 - 9Vancouver, Canada
Ability to deliver
36.5/40.017.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$150 - $199 / hr10 - 49Irvine, CA
Ability to deliver
36.3/40.016.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$150 - $199 / hr50 - 249Wilder, KY
Ability to deliver
35.8/40.017.4/20 Reviews10/10 Clients & Experience8.4/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
Ability to deliver
31.3/40.016.6/20 Reviews10/10 Clients & Experience4.7/10 Market PresenceService focus
70% API Development30% 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+$25 - $49 / hr50 - 249Castrop-Rauxel, Germany
Ability to deliver
35.3/40.018.6/20 Reviews10/10 Clients & Experience6.7/10 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 -
$50,000+$25 - $49 / hr50 - 249Mumbai, India
Ability to deliver
34.8/40.016.8/20 Reviews9.8/10 Clients & Experience8.2/10 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 -
$1,000+Undisclosed50 - 249Sahibzada Ajit Singh Nagar, India
Ability to deliver
34.7/40.017.6/20 Reviews8.6/10 Clients & Experience8.5/10 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 -
$25,000+$25 - $49 / hr10 - 49Barranquilla, Colombia
Ability to deliver
34.9/40.017/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr50 - 249Indore, India
Ability to deliver
33.1/40.016.2/20 Reviews10/10 Clients & Experience6.9/10 Market PresenceService focus
20% API Development80% 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 -
$1,000+$25 - $49 / hr10 - 49Surat, India
Ability to deliver
33.8/40.016.2/20 Reviews9.1/10 Clients & Experience8.4/10 Market PresenceService focus
15% API Development85% Other -
$10,000+$50 - $99 / hr50 - 249Fairfield, CT
Ability to deliver
34.1/40.016.4/20 Reviews9.2/10 Clients & Experience8.5/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr10 - 49Sydney, Australia
Ability to deliver
33.7/40.017.6/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
15% API Development85% Other -
$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
31.4/40.016.2/20 Reviews8.5/10 Clients & Experience6.7/10 Market PresenceService focus
30% API Development70% Other -
$10,000+$50 - $99 / hr10 - 49Timișoara, Romania
Ability to deliver
34.2/40.016.4/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$25 - $49 / hr50 - 249
Ability to deliver
33.8/40.017.2/20 Reviews10/10 Clients & Experience6.6/10 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 quotes from the 5 best-fit agencies for your project—in 4 minutes or less.