Top API Developers
Looking for trusted API development companies or skilled API developers to build secure, scalable, and high-performance integrations for your software? Browse a vetted list of top custom API developers offering reliable API development and integration services for SaaS products, mobile apps, web platforms, and enterprise systems. Explore detailed company portfolios, verified client reviews, case studies, tech expertise, and delivery performance to find the perfect match for your project. Quickly shortlist an API development company based on budget, location, industry experience, and technical capabilities to connect with a dependable API development partner that can deliver seamless, future-ready, and ROI-driven API solutions.
List of the Best API Developers & Companies
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Born with Cloud DNA, Uptic is a cutting-edge cloud-native software development company focused on building, enhancing, and modernizing applications and SaaS environments. From greenfield applications to transformative modernization efforts, we design, deploy, and manage cloud-native solutions that drive efficiency and innovation. With deep expertise in cloud-native development, CI/CD, platform engineering, data engineering, and automation, Uptic ... read Uptic reviews & insights
$100 - $149/hr10 - 492017Oak Park, Illinois -
SAS Tech Studio is a consumer centric driven organization embarking into a new journey for SAS Group to foray into Meditech, Consumer Wellness, Neo Banking and Fintech streams.With technology being the essence of any business model these days, we aim to tap this growing opportunity by providing tech-based services to such companies in both domestic ... read SAS Tech Studio reviews & insights
$50 - $99/hr50 - 2492021Gurgaon, India -
Leading digital transformation across APAC. Based in Hong Kong, we blend low-code and high-code to create a holistic digital presence for brands. At RMD HK, we believe that your digital presence is not just an art project—it’s a powerful tool to drive growth and achieve your business goals. When I founded RMD HK, my vision ... read RMD HK reviews & insights
$100 - $149/hr10 - 492021Hong Kong, China -
Golden Web Digital is a Ukrainian in-house development team that builds custom digital solutions for businesses. We specialize in complex CRM systems, eCommerce platforms, investment portals, and SaaS products. Our approach is deep business immersion and full responsibility for results. All projects are delivered by our full-time team — no freelancers involved. Golden Web Digital ... read Golden-Web Digital reviews & insights
$25 - $49/hr50 - 2492015Ternopil', Ukraine -
Helping U.S. companies build and scale the highest-caliber data science, machine learning, data engineering, and data analytics teams quickly and efficiently. We exist to share the wealth and opportunities created by AI and data with the world’s highest-caliber talent, empowering them regardless of borders, barriers, or preconceived limitations.
$50 - $99/hr250 - 9992019San Francisco, California -
At Kodia, we help businesses transform ideas into profitable digital products. As a boutique product development and engineering partner, we combine strategy, design, and technology to deliver solutions that drive real growth. Our team of strategists, designers, and engineers supports the entire product lifecycle — from MVP validation to enterprise-scale platforms. We focus on product ... read Kodia, LLC reviews & insights
$50 - $99/hr2 - 92019Miami, Florida -
About Innervex " Our team is exclusively arranged to support of our customer’s mission, goals and objectives. " Innervex Technologies Private Limited was established in 2005 in the name of S-AppSys as a proprietary firm and incorporated as private limited in the year 2011. We are a business management software product company, we create, deliver and ... read Innervex technologies Private limited reviews & insights
< $25/hr50 - 2492005Coimbatore, India -
York IE is an advisory and investment firm that helps technology companies grow. York IE leverages a 200+ person global operating team, data and automation technology, and deep ecosystem relationships to provide advisory as a service across R&D, GTM, and G&A, and to selectively invest in early-stage B2B SaaS startups. Founders, operators, and investors at ... read York IE reviews & insights
NA50 - 2492019Manchester, New Hampshire -
OkeanTech is a modern development studio helping brands build fast, scalable, and business-ready digital products. We specialize in high-performance websites, custom web apps, real-time systems, and upgrade projects for companies that need clean engineering—not just templates. From startups to growing businesses, we deliver pixel-perfect UI, blazing speed, solid architecture, and ROI-focused results. If you want ... read Okeantech reviews & insights
< $25/hr2 - 92025Indore, India -
Mindscend Inc. is a software engineering company specializing in FinTech, InsurTech, and SaaS platforms. We design, build, and scale backend-heavy systems that operate in regulated, high-stakes environments where reliability and compliance are non-negotiable. Our core engineering stack is Java (Spring Boot), Node.js, and AWS — technologies we've chosen deliberately for their performance, scalability, and ... read Mindscend reviews & insights
$25 - $49/hr2 - 92023New Jersey, New JerseyWhy Mindscend ?
- Senior Java & Node.js engineers only
- Deep FinTech & InsurTech domain expertise
- AWS-native cloud architecture & DevOps
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We are a Romanian Software Development Company providing services for Financial - Banking, Insurance and Risk Management industries. Our main expertise is web-enabled software systems that incorporate features for Information Management, Document Management and Business Process Management.
$50 - $99/hr10 - 492010Bucharest, Romania -
Alpha Dezine positions itself as a specialized platform + implementation partner for organizations that need brand/licensing operations, creative asset governance, integrations, software development and controlled AI automation. We serve collegiate licensing (universities, agencies, manufacturers) and small and medium companies.
NA50 - 2492009Pompano Beach, Florida -
We are a results-driven IT services and digital solutions company with over 3 years of industry experience, delivering high-quality technology solutions to clients across the globe. In this short span, we have successfully completed 130+ projects internationally, helping startups, businesses, and enterprises turn their ideas into scalable digital products. Our expertise spans across web development, ... read Vortexcubes reviews & insights
< $25/hr10 - 492023Indore, India -
Product Array helps Australian small and medium businesses replace manual processes with production-ready digital solutions. We specialise in Flutter cross-platform mobile apps, Go & nodejs backend APIs, custom web platforms, and end-to-end digital transformation consulting. We consult, design, build and support end to end. Local Adelaide team, global delivery capability.
$50 - $99/hr10 - 492015Adelaide, Australia -
Duotach is a software consulting and automation agency based in Buenos Aires, Argentina. We specialize in building AI-powered solutions using Claude Code and n8n workflow automation. Our services include custom software development, WhatsApp chatbots, process automation, and API integrations. We help startups and SMBs across Latin America scale their operations through intelligent automation.
$50 - $99/hr2 - 92025Buenos Aires, ArgentinaWhy Duotach?
- AI and automation specialists with Claude and n8n
- Over 52000 production executions delivered
- End to
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Code Carvers is a senior-led software engineering company building custom software, AI products, and scalable cloud systems. We combine AI-assisted speed with human-verified quality and security-first delivery.
< $25/hr2 - 92025Quito, EcuadorWhy CodeCarvers?
- AI Speed. Human-Verified Quality.
- Secure by Default, Built to Scale
- Senior-Led Teams, Built for Impact
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About FNHP – Friendly Neighborhood Programmers At FNHP – Friendly Neighborhood Programmers, we specialize in building smart, reliable software tailored to real-world needs. Based in Dornbirn, Austria, we combine technical expertise with practical thinking to solve problems in retail, logistics, and beyond. Our flagship product, DeliveryCheck, is a powerful digital solution for managing incoming goods. ... read FNHP Friendly Neighborhood Programmers reviews & insights
$50 - $99/hrFreelancer2025Dornbirn, Austria -
We Design Marbella is a freelance web design studio based in Marbella, Spain, specialising in custom WordPress websites for local and international businesses along the Costa del Sol. Founded by Milan, a hands-on web designer with deep roots in the Marbella market, the studio focuses on three industries that define the region: real estate agencies, ... read We Design Marbella reviews & insights
$150 - $199/hrFreelancer2021Marbella, SpainWhy We Design Marbella?
- Local designer. Marbella market expert.
- Real estate, restaurants & rentals specialist.
- One person, fully invested in you.
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About Us: Of Ash and Fire is a custom software development company headquartered in Oklahoma City, Oklahoma. We specialize in building enterprise-grade applications for three industries: healthcare, education technology, and manufacturing. In healthcare, we develop HIPAA-compliant patient portals, telemedicine platforms, EHR integrations (Epic, Cerner), and clinical workflow automation tools. In EdTech, we build custom ... read Of Ash and Fire, LLC reviews & insights
$150 - $199/hr10 - 492017Oklahoma City, Oklahoma -
Sigma Infosolutions is a leading global IT solutions & services company headquartered in Irvine, California, with development centers in Bangalore & Ahmedabad, India. Sigma delivers innovative IT solutions in a variety of industries including FinTech, eCommerce, Technology, Telecom, Retail, and Healthcare, helping companies drive enhanced customer engagement, operational efficiency and return on IT investments. We ... read Sigma Infosolutions reviews & insights
NA50 - 2492004Irvine, California -
Goldenaxe is a no-code development company dedicated to helping businesses build scalable, custom web and mobile applications without writing a single line of code. We blend strategic thinking, intuitive design, and platform expertise to transform your ideas into powerful digital products that perform.
$25 - $49/hr10 - 492018Coimbatore, India -
Email Solutions is a Jordan-based IT and digital services company providing secure hosting, e-commerce, website design and development, mobile application, branding, SEO solutions, and social media advertising to support business growth and online visibility.
NA10 - 492006Riyadh, Saudi Arabia -
Kuhnic AI builds AI voice agents, workflow automations, and custom applications for US businesses in legal, healthcare, and real estate. Founded in 2022 and acquired by Transputec, we combine startup speed with enterprise infrastructure to deploy production-ready AI systems. Our voice agents handle inbound and outbound calls with human-level conversation, cutting operational costs while improving response ... read Kuhnic AI reviews & insights
$100 - $149/hr10 - 492022Middletown, DelawareWhy Kuhnic AI?
- Clients Save Over 1000 Hours Annually
- Voice Agents Live in Under 2 Weeks
- Backed by Transputec Enterprise Scale
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We are trailblazers in the world of engineering and construction, continuously reimagining the boundaries of the built environment with innovative thinking and game-changing solutions. At VIATechnik, we’re not just shaping structures; we’re building the future. At VIATechnik, our primary goal is to provide clients with unparalleled support and expertise throughout their project’s lifecycle. By offering a comprehensive ... read VIATechnik reviews & insights
$50 - $99/hr250 - 9992012Chicago, Illinois -
Founded in 2022, our company is a custom software development firm built by engineers, for complex real-world challenges. The company was established by Neculai Emanuel, a senior software engineer, team lead, and software architect, and it evolved organically from a hands-on mentorship program that trained and shaped most of our current team. Today, we are ... read DevsReady reviews & insights
$25 - $49/hr10 - 492022Bucharest, Romania -
Who we are, our approach to what we do and our vision for how we improve the world around us. Since 2010, we’ve been on a mission to help people, businesses, and communities thrive through digital innovation. From the start, we’ve been all about creating custom solutions that empower people to live healthier, happier, more connected ... read Vidatec reviews & insights
$25 - $49/hr10 - 492011Glasgow, United Kingdom -
We design and build powerful, user-friendly business apps. Tailored to your process, automated for impact, and ready to scale. Our projects include contact managers (CRM), production management (ERP), project tracking, sales tracking, improvement of administrative processes, billing automation, and much more. Contact us to find out how we can collaborate on your project. Our projects ... read CIO1 Business Intelligence reviews & insights
$50 - $99/hr2 - 92019Brossard, Canada -
Viganium: Building the Future, Teaching Tech to Think. We don't just build a digital presence; we engineer one that truly speaks for you! At Viganium, we are a software solutions and Artificial Intelligence (AI) company with a distinct approach. We don't use AI to replace people; we train it to learn from our work, enabling ... read Viganium reviews & insights
$25 - $49/hr10 - 492025Jeddah, Saudi Arabia -
Ananta Labs is a premier product engineering and digital transformation company based in Noida, serving a global clientele. We operate at the intersection of complex engineering and creative strategy. Unlike traditional agencies, we don't just build websites; we architect Scalable SaaS Platforms and Custom Travel Technology that drive measurable revenue. Our Distinction: We combine Indian ... read Ananta Labs reviews & insights
$25 - $49/hr10 - 492025Noida, India -
RootedAI is a premier custom software and AI development company based in India. We don’t sell advice; we engineer high-performance solutions that replace operational friction with autonomous velocity. We are builders, not consultants. We deliver global-tier engineering at highly competitive rates, ensuring you get deployed code and tangible systems, not just slide decks. Our Core ... read RootedAI reviews & insights
$50 - $99/hr2 - 92026Hosur, India -
EITECK is a global software factory with roots in Ecuador and operations across Latin America and Europe. Since 2019, we’ve been helping businesses grow through custom software development, nearshore staffing, and AI-driven solutions. Our team brings together over 15 years of experience in software engineering, delivering high-impact projects for companies in Germany, the United States, ... read Eiteck reviews & insights
$25 - $49/hr2 - 92019Cuenca, Ecuador -
We design and build business software for growing companies. Project tracking, order management, client onboarding, process automation, and dashboards. One place to see everything instead of chasing updates across disconnected tools.
$150 - $199/hr2 - 92005Shrewsbury, United Kingdom -
We develop web systems that are built to last—robust, maintainable, and ready to scale. Ruby on Rails is our core expertise, and we have delivered a wide range of Rails projects including new web product development, modernization of legacy applications, feature expansion, and ongoing operations and maintenance. At the same time, we increasingly support projects ... read DXAI Solutions Asia co.,Ltd. reviews & insights
$25 - $49/hr10 - 492012Da Nang City, Vietnam -
We offer our expertise and services to build and launch your ideas. Gain strategies and resources to streamline and scale your business for maximized efficiency and effectiveness.
$100 - $149/hr10 - 492022Gallatin, Tennessee -
Bits and Bytes IT Solution is an international company which deals with all types of digital marketing services, having been established in 2018. Our specialties include SEO, social media marketing, PPC, email marketing and content creation among others. We want to make businesses expand online and attain successful results. We bring our clients results-driven strategies ... read Bits and Bytes IT Solution reviews & insights
NA10 - 492018Noida, India -
Nous sommes une agence fondée par deux entrepreneurs et développeurs, spécialisés dans la conception, le pilotage et le delivery de produits mobiles et web complexes, pensés pour fonctionner en conditions réelles de production, avec des enjeux business, réglementaires et organisationnels forts. Nous avons conçu, développé, déployé et piloté notre propre application mobile de gestion financière ... read StartLine reviews & insights
$50 - $99/hr2 - 92025Aix-en-Provence, France -
Hmara.digital partners with businesses to build intelligent, custom digital products — crafted for performance, scalability, and lasting impact.Contact us for a free consultation to discuss your digitisation ideas with experts. Please leave your number and we will call you back.
$50 - $99/hr10 - 492022Poznan, Poland -
Won Solutions is a professional IT services and software development company helping businesses grow through modern technology. We specialize in custom software development, web and mobile app development, AI solutions, cloud computing, and IT consulting. Our expert team is committed to delivering secure, scalable, and innovative solutions tailored to each client’s unique needs. Whether you ... read WonSol reviews & insights
< $25/hr10 - 492025Rawalpindi, Pakistan -
Your frontend technical partner. We work as a white-label contractor for agencies: you sell to clients, we build frontend under your brand. For product startups — we're the frontend team that integrates into your process. Our bet — depth over width: only frontend, but with expertise in architecture, performance, and long-term support.
$25 - $49/hr2 - 92025Yerevan, Armenia -
Founded in 2011, Eleven Labs is an IT consulting and implementation firm recognized for its technical excellence and the quality of its team. With 100 consultants and over 500 completed projects, we provide daily support to companies such as Radio France, Decathlon, Sephora, The Fork, Société Générale, 20 Minutes, Citeo, and Believe. Our role is ... read Eleven Labs reviews & insights
$100 - $149/hr50 - 2492011Paris, France -
Citrix Digital offers secure digital workspaces and cloud solutions to help organizations transform the way they work. Our comprehensive portfolio of virtualization, mobility, networking, and cloud solutions enable businesses to securely deliver apps and data to any device, from any cloud or hybrid cloud. Our solutions help organizations be more productive, efficient, and secure. Unlock ... read Citrix Digital reviews & insights
< $25/hr2 - 92023Harare, ZimbabweWhy Citrix Digital?
- We provide tailor made solutions.
- Client first approach and transparency.
- High Quality Solutions
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Alchemy is a comprehensive Web3 infrastructure platform that enables developers to build, deploy, and scale applications on blockchain networks with greater ease and efficiency. Instead of requiring teams to manage their own complex blockchain nodes and backend systems, Alchemy provides reliable APIs, developer tools, and data services that simplify interaction with networks like Ethereum and ... read Alchemy 2.0 reviews & insights
$50 - $99/hr250 - 9992017San Francisco, CaliforniaWhy Alchemy 2.0?
- Backed by leading venture capital firms
- World-class engineering team from companies
- Leading web3 development platform
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Hi 👋, We're Eastway Digital Media. We are a web design and development company based in Essex. Capable of building bespoke interactive websites and web applications for businesses of any size, we can handle everything from database design to UI/UX to launch. We specialise in web based SaaS development and are able to plan, design, ... read Eastway Digital media Ltd reviews & insights
$50 - $99/hr2 - 92023Essex, United Kingdom -
We are experienced software consultants specializing in web and mobile platform development for mid-market and enterprise businesses in a wide range of industries. We focus on improving operational efficiency, driving revenue growth, supporting new business models, and alignment with the client’s strategic goals.
NA10 - 492019Fishers, Indiana -
aarsis – Your Trusted Custom Software Development Partner aarsis is a full-service software development company delivering innovative solutions to businesses in Sydney, Australia, and globally. With a local office in Sydney and a highly skilled delivery team, we combine cost-effective solutions with world-class expertise to provide scalable, secure, and user-friendly applications tailored to each client’s unique business needs. Our expertise spans across Web ... read aarsis Solutions reviews & insights
< $25/hr10 - 492021Dhaka, Bangladesh -
GenAI Protos delivers AI consulting services, full stack AI application development, and custom AI solutions for startups, enterprises, and Fortune 500 companies. With 20+ years of experience in enterprise AI implementation, our team of generative AI experts accelerates innovation through rapid AI prototyping, cost-effective AI solutions, and strategic generative AI consulting. As trusted AI implementation ... read GenAI Protos reviews & insights
$50 - $99/hr10 - 492024Irvine, California -
PetakSys is a digital transformation partner for financial companies across Western Europe. We specialize in helping small private banks, family offices, and asset & wealth management firms modernize their operations through seamless application and data integration, custom software development, and automated client reporting solutions. Our team enables financial organizations, especially those with small or limited ... read PetakSys reviews & insights
$50 - $99/hr2 - 92022Budapest, Hungary -
Erratum Solutions is a trusted software development company with 8+ years of experience in creating scalable, custom digital solutions. Based in Dubai Silicon Oasis (UAE) and Calicut, India. We specialize in: Mobile app development (iOS & Android) Custom web applications optimized for performance and security Scalable software systems and cloud-based architecture E‑commerce platforms that are user-friendly, secure, and built to ... read Erratum Solutions FZCO reviews & insights
$25 - $49/hr2 - 92024Dubai, UAE
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