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.
-
$1,000+$100 - $149 / hr2 - 9Vence, France
Services provided
Headquartered in Vence, France, Lizard & Dog is a custom software development firm. The team offers Custom Software Development and Web Development.
Read more -
UndisclosedUndisclosed10 - 49Bengaluru, India
Services provided
Keploy is a small Bengaluru, India-based Application Testing company. Their services include Application Testing and API Development.
Read more -
$1,000+$25 - $49 / hr10 - 49
Services provided
Headquartered in Vanadzor, Armenia, Code MIles is a web development firm. Launched in 2023, the team provides Web Development and API Development.
Read more -
$1,000+$25 - $49 / hr10 - 49Fateh Jang, Pakistan
Services provided
SnipByte is a website development firm. The Fateh Jang, Pakistan-based company was established in 2023. Their services include Web Development and Artificial Intelligence.
Read more -
Undisclosed$25 - $49 / hr2 - 9Marco de Canaveses, Portugal
Services provided
Teoria Agency, a website development firm, was established in 2021. They focuses on Web Development and Web Design.
Read more -
UndisclosedUndisclosed250 - 999Clearwater, FL
Services provided
PostcardMania, a print design agency, is based in Clearwater, Florida. Established in 1998, the team offers Print Design and Pay Per Click.
Read more -
$5,000+$25 - $49 / hr2 - 9Chiyoda City, Japan
Services provided
Micata, inc., an user experience agency, is based in Chiyoda City, Japan. The team specializes in UX/UI Design and cloud consulting & SI.
Read more -
$5,000+$50 - $99 / hr2 - 9Douglas, Isle of Man
Services provided
Curbsy is a web development firm in Douglas, Isle of Man. The team provides Web Development and Custom Software Development.
Read more -
$25,000+$25 - $49 / hr2 - 9Tiranë, Albania
Services provided
ICom shpk is a website development firm. They were founded in 2011, and their services include Web Development and API Development.
Read more -
$5,000+$100 - $149 / hr2 - 9Saint-Roch-de-Richelieu, Canada
Services provided
See all 2 projectsDevActif specializes in developing iOS and Android mobile applications with services including time entry management, calendar management, and document handling. Reviews highlight their attentive and flexible project management, expertise, and alignment with company values, leading to successful project outcomes and effective communication. Clients appreciate their ability to adapt to needs and contribute valuable industry insights, with no noted areas for improvement.
-
$10,000+$25 - $49 / hr250 - 999Houston, TX
Services provided
Established in 1999, TISA Software LLC is a midsize CRM consulting and SI company. Their services include CRM consulting and SI and IT staff augmentation.
Read more -
$5,000+$25 - $49 / hr10 - 49
Services provided
Onbyz Technologies LLC, a SEO company, is in Dubai, United Arab Emirates and Thiruvananthapuram, India. The team offers Search Engine Optimization and Pay Per Click.
Read more -
UndisclosedUndisclosed10 - 49
Services provided
TS Cloud, a cloud consulting & SI company, was founded in 2007. The company offers cloud consulting & SI and API Development.
Read more -
$1,000+$50 - $99 / hr50 - 249Edison, NJ
Services provided
See all 1 projectsIf you are looking for the best PSD to HTML conversion services, look no further than XHTMLCHOP. We have a skilled and experienced team that can handle any kind of conversion project. Whether you
Read more -
$1,000+$25 - $49 / hr10 - 49Lahore, Pakistan
Services provided
Established in 2020, Dru dots Technologies is a small UX design company. Their services include UX/UI Design and Mobile App Development.
Read more -
$5,000+< $25 / hr10 - 49
Services provided
XpertSpot is a small mobile application development company. They focus on Mobile App Development and DevOps Managed Services and were established in 2016.
Read more -
$5,000+$50 - $99 / hr2 - 9
Services provided
Custom software development firm Fraser Technologies is located in Coldbrook, Canada. The team specializes in Custom Software Development and Mobile App Development.
Read more -
$50,000+$150 - $199 / hr50 - 249Indianapolis, IN
Services provided
Launched in 2000, E-gineering, Inc. Is a custom software development company. The agency specializes in Custom Software Development and Web Development.
Read more -
$10,000+Undisclosed10 - 49Dhaka, Bangladesh
Services provided
See all 1 projectsLogiQbits Limited specializes in providing software solutions, particularly for enhancing mobile applications with features like sales tracking, product details, and live tracking. The reviews highlight their effective project management, timely delivery, and the good value they offer for the cost. Clients commend their impeccable work, suggesting a strong fit for projects requiring real-time sales activity visibility and field force management.
-
$5,000+$100 - $149 / hr2 - 9Vancouver, Canada
Services provided
See all 1 projectsKSN Digital Service LLP specializes in website redesign, custom fulfillment logic, conversion rate improvement, B2B API integration, and custom product options. Reviews highlight their quick responsiveness, creativity in problem-solving, and ability to exceed project expectations. Clients appreciate their effective project management and adaptability, often delivering solutions ahead of schedule.
-
$1,000+< $25 / hr10 - 49
Services provided
IoT development company Inthings Technologies Pvt Ltd focuses on IoT development and API Development. They were launched in 2019.
Read more -
$1,000+$100 - $149 / hr10 - 49Singapore, Singapore
Services provided
Myware Pte Ltd is a website development firm. They focus on Web Development and Social Media Marketing and are based in Singapore, Singapore.
Read more -
$5,000+< $25 / hr10 - 49
Services provided
See all 2 projectsZILLIONICA TECHNOLOGY offers comprehensive solutions including API Development, focusing on data integration, transformation, and dashboard development. Reviews highlight their exceptional project management, timely delivery, and client-centric focus, showcasing adaptability and a proactive approach to meet evolving project needs. Their commitment to excellence and a holistic understanding of business requirements contribute to effective and impactful outcomes.
-
$1,000+< $25 / hr2 - 9Addis Ababa, Ethiopia
Services provided
Addis Software is a small web development company headquartered in Addis Ababa, Ethiopia. Their services include Web Development and API Development.
Read more -
$5,000+$25 - $49 / hr2 - 9Nogent-sur-Marne, France
Services provided
Based in Nogent-sur-Marne, France, Tsyke is a small API Development company. Their services include API Development and Web Development.
Read more -
$5,000+$25 - $49 / hr2 - 9Albignasego, Italy
Services provided
Zagros is a small website development firm established in 2024. Their team provides Web Development and Custom Software Development.
Read more -
$5,000+$25 - $49 / hr10 - 49Yerevan, Armenia
Services provided
VTGSoftware is an API Development company. The Yerevan, Armenia-based company was launched in 2008. Their team focuses on API Development and Web Development.
Read more -
$5,000+$100 - $149 / hr2 - 9
Services provided
Custom software development company Avalon Team was founded in 2015. The firm offers Custom Software Development and IT strategy consulting, and is small.
Read more -
$50,000+$50 - $99 / hr2 - 9Beograd, Serbia
Services provided
Appollo41, a mobile application development company, is located in Beograd, Serbia. They focus on Mobile App Development and Custom Software Development.
Read more -
Undisclosed< $25 / hr2 - 9
Services provided
See all 1 projectsKKTECHUB is a premier provider of custom software development solutions tailored to meet the unique needs of businesses across industries. With over 7 years of experience in the IT sector, we
Read more -
Undisclosed< $25 / hr250 - 999
Services provided
Application Management & Support company IT EXPERT-PK is located in NewTown, England. They offer Application Management & Support and Custom Software Development and were founded in 2016.
Read more -
Undisclosed$25 - $49 / hr2 - 9
Services provided
Launched in 2026, CoffeeNCoders is a small e-commerce development company. Their team specializes in E-Commerce Development and Web Development.
Read more -
$5,000+< $25 / hr10 - 49cau giay, Vietnam
Services provided
Established in 2016, Next Level Solution is a small website development firm. Their team specializes in Web Development and Mobile App Development.
Read more -
$1,000+$100 - $149 / hr2 - 9
Services provided
Digitelli GmbH is an API Development company. The agency is headquartered in Sulzbach (Taunus), Germany. Their team focuses on API Development and Custom Software Development.
Read more -
$1,000+$25 - $49 / hr2 - 9New Delhi, India
Services provided
In New Delhi, India, Gisspi Solutions is a SEO company. Their services include Search Engine Optimization and Web Development.
Read more -
Undisclosed$25 - $49 / hr2 - 9
Services provided
Softzyne, a small website development company, is located in Chattogram, Bangladesh. The team offers Web Development and Custom Software Development.
Read more -
$1,000+$50 - $99 / hr2 - 9
Services provided
Invntio is a small Cressona, Pennsylvania-based custom software development firm. Their services include Custom Software Development and Mobile App Development.
Read more -
$1,000+$25 - $49 / hr10 - 49
Services provided
Geiblein Technologies is an ERP consulting and SI company. Founded in 2018, the firm is in Ahmedabad, India. Their team specializes in ERP consulting and SI and Web Development.
Read more -
$10,000+$25 - $49 / hr10 - 49Ciudad de México, Mexico
Services provided
Seedpath is a custom software development firm founded in 2024. The firm provides Custom Software Development and Mobile App Development.
Read more -
$1,000+< $25 / hr10 - 49
Services provided
Printf Technologies is a software development firm launched in 2016. The firm offers Custom Software Development and Web Development.
Read more -
$100,000+Undisclosed10 - 49
Services provided
Car Digital LTD is a small custom software development company based in Ruse, Bulgaria. Their services include Custom Software Development and Web Development.
Read more -
Undisclosed< $25 / hr2 - 9
Services provided
PushBinary is a small web development company launched in 2015. Their team focuses on Web Development and Mobile App Development.
Read more -
$1,000+$25 - $49 / hr10 - 49
Services provided
Carrycode Technology Pvt Ltd is a small software development company launched in 2017. Their services include Custom Software Development and Web Development.
Read more -
$75,000+$100 - $149 / hr2 - 9
Services provided
Charing Cross Consulting is an API Development company. They specialize in API Development and ERP consulting and SI and were founded in 2024. The agency is located in London, Canada.
Read more -
$25,000+$50 - $99 / hr10 - 49San Jose, CA
Services provided
See all 1 projectsCrea specializes in Application Programming Interface Development, offering seamless solutions for payment platforms integrated with top-tier banks. Their reviews highlight exceptional project management, responsiveness, and technical expertise, demonstrating a commitment to client success and innovation. Clients particularly appreciate their ability to deliver high-quality, bug-free solutions within tight timelines, enhancing the overall user experience.
-
$1,000+< $25 / hr10 - 49Surat, India
Services provided
Based in Surat, India, Intelizia infoway is a small web development firm. The team focuses on Web Development and Mobile App Development.
Read more -
$5,000+$25 - $49 / hr250 - 999ACE, Argentina
Services provided
Midsize IT staff augmentation company Epidata SA, is in ACE, Argentina and Las Condes, Chile. The team provides IT staff augmentation and IT managed services.
Read more -
$1,000+< $25 / hr2 - 9
Services provided
FA Tech and Solutions is an API Development company established in 2019. Their team offers API Development and E-Commerce Development.
Read more -
$5,000+$100 - $149 / hr2 - 9
Services provided
Best Byte is an Amsterdam, Netherlands-based AI development company. They specialize in Artificial Intelligence and AI Agents and were established in 2023.
Read more -
$10,000+$150 - $199 / hr2 - 9Meridian, ID
Services provided
Merakite is a custom software development company launched in 2017. The team specializes in Custom Software Development and Mobile App Development.
Read more
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My Matches
Tell us what you need — we’ll match you with top agencies and their real-time quotes in minutes.
Get My QuotesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
List of the Top 15 API Development Services
-
$5,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
Ability to deliver
32.3/40.017.4/20 Reviews10/10 Clients & Experience4.9/10 Market PresenceService focus
70% API Development30% Other -
$1,000+$25 - $49 / hr50 - 249Austin, TX
Ability to deliver
35.5/40.020/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$25 - $49 / hr1,000 - 9,999São Paulo, Brazil
Ability to deliver
33.4/40.016.6/20 Reviews9.9/10 Clients & Experience7/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$150 - $199 / hr10 - 49St. Louis, MO
Ability to deliver
34.1/40.020/20 Reviews10/10 Clients & Experience4.1/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
33.7/40.019/20 Reviews10/10 Clients & Experience4.7/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
31/40.017/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
30% API Development70% Other -
$5,000+< $25 / hr50 - 249Stamford, England
Ability to deliver
33.5/40.019.6/20 Reviews10/10 Clients & Experience3.9/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249Zymna Voda, Ukraine
Ability to deliver
33.3/40.018.4/20 Reviews10/10 Clients & Experience4.9/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$150 - $199 / hr50 - 249Wilder, KY
Ability to deliver
33.3/40.017.2/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249Castrop-Rauxel, Germany
Ability to deliver
33.2/40.018.6/20 Reviews10/10 Clients & Experience4.6/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr50 - 249Luzern, Switzerland
Ability to deliver
32.9/40.018.2/20 Reviews10/10 Clients & Experience4.7/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
32.9/40.019.2/20 Reviews10/10 Clients & Experience3.7/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr10 - 49Sydney, Australia
Ability to deliver
32.5/40.018.8/20 Reviews10/10 Clients & Experience3.7/10 Market PresenceService focus
15% API Development85% Other -
$5,000+$100 - $149 / hr10 - 49Denver, CO
Ability to deliver
32.4/40.018/20 Reviews10/10 Clients & Experience4.4/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
Ability to deliver
31.8/40.017.2/20 Reviews10/10 Clients & Experience4.6/10 Market PresenceService focus
15% API Development85% Other -
$5,000+$25 - $49 / hr10 - 49Kharkiv, Ukraine
Ability to deliver
31.4/40.018.4/20 Reviews8.9/10 Clients & Experience4.1/10 Market PresenceService focus
15% API Development85% Other -
$100,000+$25 - $49 / hr50 - 249
Ability to deliver
31.7/40.017.6/20 Reviews10/10 Clients & Experience4.1/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249San Antonio, TX
Ability to deliver
31.7/40.017.8/20 Reviews10/10 Clients & Experience3.9/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$150 - $199 / hr10 - 49Nashville, TN
Ability to deliver
31.8/40.017.4/20 Reviews10/10 Clients & Experience4.4/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
28.8/40.016.2/20 Reviews8.5/10 Clients & Experience4.1/10 Market PresenceService focus
30% API Development70% Other -
$25,000+Undisclosed50 - 249Blue Ash, OH
Ability to deliver
29.5/40.016.8/20 Reviews7.5/10 Clients & Experience5.2/10 Market PresenceService focus
25% API Development75% Other -
$10,000+Undisclosed10 - 49
Ability to deliver
31.1/40.018/20 Reviews9.2/10 Clients & Experience3.9/10 Market PresenceService focus
15% API Development85% Other -
$25,000+$25 - $49 / hr50 - 249
Ability to deliver
31.4/40.017.2/20 Reviews10/10 Clients & Experience4.2/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$50 - $99 / hr2 - 9Koog aan de Zaan, Netherlands
Ability to deliver
29.4/40.016.8/20 Reviews8.9/10 Clients & Experience3.7/10 Market PresenceService focus
35% API Development65% Other -
$5,000+$25 - $49 / hr50 - 249Islamabad, Pakistan
Ability to deliver
31.3/40.018.4/20 Reviews9.2/10 Clients & Experience3.7/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$50 - $99 / hr50 - 249České Budějovice, Czech Republic
Ability to deliver
31.3/40.017.8/20 Reviews9.4/10 Clients & Experience4.1/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$100 - $149 / hr50 - 249Austin, TX
Ability to deliver
30.6/40.019.2/20 Reviews7.5/10 Clients & Experience3.9/10 Market PresenceService focus
15% API Development85% Other -
$5,000+$50 - $99 / hr10 - 49Kraków, Poland
Ability to deliver
29.8/40.016.4/20 Reviews9.5/10 Clients & Experience3.9/10 Market PresenceService focus
25% API Development75% Other -
$10,000+$50 - $99 / hr10 - 49
Ability to deliver
30.9/40.017/20 Reviews9.7/10 Clients & Experience4.2/10 Market PresenceService focus
15% API Development85% Other -
$50,000+$150 - $199 / hr10 - 49Toronto, Canada
Ability to deliver
29.8/40.015.8/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
25% API Development75% 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.