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+$25 - $49 / hr2 - 9
Services provided
Buproject Sofware and Consultancy is a custom software development firm. The Denizli, Türkiye-based team offers Custom Software Development and Mobile App Development.
Read more -
$10,000+$100 - $149 / hr2 - 9Rotterdam, Netherlands
Services provided
CodeIQ is a custom software development company. They were founded in 2017, and their services include Custom Software Development and API Development.
Read more -
$5,000+$50 - $99 / hr2 - 9
Services provided
AledaTech is an AI Agents company. Launched in 2025, the firm is located in Madrid, Spain. Their services include AI Agents and API Development.
Read more -
$1,000+< $25 / hr2 - 9
Services provided
Azorics is an UX design agency. Established in 2025, the company is located in Kabul, Afghanistan. Their services include UX/UI Design and Custom Software Development.
Read more -
Undisclosed$100 - $149 / hr2 - 9
Services provided
D2X is a web design agency launched in 2002. Their services include Web Design and Custom Software Development.
Read more -
Undisclosed< $25 / hr2 - 9
Services provided
IT strategy consulting company Stake Horizon Private Limited is in Ahmedabad, India. They specialize in IT strategy consulting and Web Development and were founded in 2024.
Read more -
$1,000+$100 - $149 / hr2 - 9
Services provided
Launched in 2009, Alpha27, Inc. Is a social media marketing firm. Their team specializes in Social Media Marketing and Search Engine Optimization.
Read more -
UndisclosedUndisclosed2 - 9
Services provided
Sarvico Infotech, an user experience design agency, is based in Noida, India and Noida, India. They offer UX/UI Design and Web Development and were established in 2015.
Read more -
Undisclosed$25 - $49 / hr2 - 9Rolling Meadows, IL
Services provided
Placematic USA LLC is a website development company. The team focuses on Web Development and Mobile App Development, and the company is located in Rolling Meadows, Illinois.
Read more -
$10,000+$150 - $199 / hr2 - 9
Services provided
Systempilot is a Logistics & Supply Chain Consulting company located in Klosterneuburg, Austria. The team offers Logistics & Supply Chain Consulting and AI Consulting.
Read more -
$10,000+$100 - $149 / hr2 - 9Dover, DE
Services provided
Launched in 2021, Anvil Development Agency Inc. Is a website development firm. Headquartered in Dover, Delaware, the team provides Web Development and Mobile App Development.
Read more -
$10,000+$150 - $199 / hr2 - 9Fremantle, Australia
Services provided
Small API Development company Nano Solutions Pty ltd, is headquartered in Fremantle, Australia. Their services include API Development and DevOps Managed Services.
Read more -
$1,000+$50 - $99 / hr2 - 9Bath, England
Services provided
Custom software development firm Red Owl IT offers Custom Software Development and Web Development. They were established in 2011.
Read more -
UndisclosedUndisclosed2 - 9
Services provided
Basecode is an API Development company. Founded in 2025, their team provides API Development and Custom Software Development.
Read more -
$5,000+$25 - $49 / hr2 - 9
Services provided
Calmfox.pl spzoo is an API Development company. The Bydgoszcz, Poland-based agency focuses on API Development and E-Commerce Development.
Read more -
Undisclosed$50 - $99 / hr2 - 9
Services provided
NetTEL sp. Z o.o. Is an IT managed services company launched in 2008. The small team specializes in IT managed services and API Development.
Read more -
$1,000+$25 - $49 / hr2 - 9
Services provided
Software development company Brazuca Informática was founded in 2018. The company provides Custom Software Development and API Development, and is small.
Read more -
Undisclosed$25 - $49 / hr2 - 9
Services provided
Beirut Sites, a small website development company, is in Beirut, Lebanon. Their services include Web Development and Web Design.
Read more -
$1,000+$50 - $99 / hr2 - 9
Services provided
API Development company HyperBrain Labs is headquartered in Bengaluru, India. They provide API Development and Application Management & Support and were launched in 2024.
Read more -
Undisclosed$50 - $99 / hr2 - 9
Services provided
Bissolux L.L.C., an API Development company, is based in Sheridan, Wyoming. Their services include API Development and UX/UI Design.
Read more -
UndisclosedUndisclosed2 - 9
Services provided
In Ibadan, Nigeria and Lagos, Nigeria, Estyne International Limited is a software development company. The team focuses on Custom Software Development and API Development.
Read more -
$5,000+$100 - $149 / hr2 - 9
Services provided
Lucid Modules is an e-commerce development company. Founded in 2021, the team offers E-Commerce Development and API Development.
Read more -
$1,000+$25 - $49 / hr2 - 9الدوحة, Qatar
Services provided
Cyberboost LLC is an API Development company. They were founded in 2023 and provide API Development and Custom Software Development.
Read more -
$1,000+$25 - $49 / hr2 - 9Funchal, Portugal
Services provided
See all 1 projectsZorix is a results-oriented digital agency dedicated to engineering high-performance web ecosystems. We bridge the gap between complex backend architecture and premium frontend aesthetics, ensuring
Read more -
$5,000+$25 - $49 / hr2 - 9
Services provided
Weasel Web, an API Development company, offers API Development and Custom Software Development. The company is headquartered in A Coruña, Spain.
Read more -
Undisclosed$25 - $49 / hrFreelancerSurat, India
Services provided
Meet Nexus is a Surat, India-based IT strategy consulting company. They provide IT strategy consulting and Custom Software Development.
Read more -
$1,000+< $25 / hr10 - 49Ahmedabad, India
Services provided
StellarMind.ai is a cloud consulting & SI company. In Ahmedabad, India, the agency focuses on cloud consulting & SI and Cybersecurity.
Read more -
$5,000+$100 - $149 / hr10 - 49Eindhoven, Netherlands
Services provided
Established in 2006, Omines is a small SEO services firm. Their services include Search Engine Optimization and Web Design.
Read more -
$1,000+$25 - $49 / hr10 - 49Abu Dhabi, United Arab Emirates
Services provided
Launched in 2016, Berg Media Digital is an e-commerce development company. Their services include E-Commerce Development and Web Development.
Read more -
UndisclosedUndisclosed10 - 49Boca Raton, FL
Services provided
Zoneomics is an API Development company. The small Boca Raton, Florida-based team provides API Development. The company was established in 2018.
Read more -
UndisclosedUndisclosed10 - 49Denver, CO
Services provided
Cloverhound is an API Development company. The team provides API Development and IT managed services, and the company is headquartered in Denver, Colorado and Charlotte, North Carolina.
Read more -
UndisclosedUndisclosed10 - 49Denver, CO
Services provided
Answering service company and API Development company ITC Telecom Technology, LLC is in Denver, Colorado. Their services include Call Center Services and API Development.
Read more -
UndisclosedUndisclosed10 - 49Fort Wayne, IN
Services provided
JH Specialty, Inc. Is an API Development company founded in 1998. The team focuses on API Development and is in Fort Wayne, Indiana.
Read more -
UndisclosedUndisclosed10 - 49Minneapolis, MN
Services provided
Apigician, a small API Development company, is based in Minneapolis, Minnesota. Their services include API Development.
Read more -
UndisclosedUndisclosed10 - 49Fargo, ND
Services provided
Project Phoenix is a small API Development company founded in 2017. Their services include API Development.
Read more -
UndisclosedUndisclosed10 - 49
Services provided
Graphic design company and API Development company Coverdale Group focuses on Graphic Design and API Development. They are located in Cincinnati, Ohio.
Read more -
UndisclosedUndisclosed10 - 49
Services provided
Kato Integrations is an API Development company. They are based in Hutchinson, Minnesota, and their services include API Development and Custom Software Development.
Read more -
UndisclosedUndisclosed10 - 49Mason, OH
Services provided
Cegna is an API Development company established in 2023. Their team provides API Development.
Read more -
UndisclosedUndisclosed10 - 49
Services provided
Small software development firm and API Development company Astral Innovations, Inc., is based in Weston, Wisconsin. The team provides Custom Software Development and API Development.
Read more -
UndisclosedUndisclosed10 - 49Franklin, TN
Services provided
Founded in 2002, Rustici Software is an API Development company. The team provides API Development and is based in Franklin, Tennessee.
Read more -
UndisclosedUndisclosed10 - 49Portland, OR
Services provided
Founded in 2004, Periscopic is a business intelligence company and API Development company. The team offers BI & big data consulting & SI and API Development.
Read more -
UndisclosedUndisclosed10 - 49Toronto, Canada
Services provided
DataHen Canada Inc. Is a data analytics company and API Development company in Toronto, Canada. Their services include BI & big data consulting & SI and API Development.
Read more -
UndisclosedUndisclosed10 - 49
Services provided
MindCloud is a CRM consulting and SI and API Development company located in McMinnville, Oregon. Established in 2021, the team provides CRM consulting and SI and API Development.
Read more -
UndisclosedUndisclosed10 - 49
Services provided
DRPC is a Limassol, Cyprus-based Blockchain and API Development company. They offer Blockchain and API Development and were founded in 2005.
Read more -
$1,000+$25 - $49 / hr10 - 49
Services provided
Clockwrk is an AI Agents company. The small Lahore, Pakistan-based team focuses on AI Agents and API Development. The agency was established in 2026.
Read more -
$250,000+$50 - $99 / hr50 - 249
Services provided
ASSIST spol. S r.o., a midsize Microservices Architecture Services company, is based in Praha 8, Czech Republic. Their services include Microservices Architecture Services and DevOps Managed
Read more -
$1,000+$25 - $49 / hr10 - 49Chennai, India
Services provided
Headquartered in Chennai, India and Hanau, Germany, Soft Solutions4U is an e-commerce development firm. They provide E-Commerce Development and ERP consulting and SI.
Read more -
$10,000+$150 - $199 / hr10 - 49Boston, MA
Services provided
Software development firm LaunchWare specializes in Custom Software Development and Web Development. They were founded in 2006.
Read more -
$5,000+Undisclosed10 - 49Yerevan, Armenia
Services provided
Small software development company IQsoft LLC, is located in Yerevan, Armenia. The team offers Custom Software Development and Web Development.
Read more -
$5,000+$25 - $49 / hr10 - 49Hyderabad, India
Services provided
Believe Creative is a Hyderabad, India-based mobile app development firm. Founded in 2011, the team specializes in Mobile App Development and API 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+$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 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
33.5/40.018.8/20 Reviews10/10 Clients & Experience4.7/10 Market PresenceService focus
10% API Development90% 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.