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.
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$5,000+$25 - $49 / hr2 - 9London, England
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Established in 2025, Sofdy Solutions LTD is a small AI Consulting company. Their team specializes in AI Consulting and API Development.
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$1,000+$25 - $49 / hr2 - 9Bisrakh Jalalpur, India
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Revergent Techologies, a software development firm, was launched in 2025. The team offers Custom Software Development and Web Development and is in Bisrakh Jalalpur, India.
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$1,000+$50 - $99 / hr2 - 9
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Launched in 2025, Azurite Tech Ltd is a small Khulna, Bangladesh-based AI Agents company. Their team offers AI Agents and Artificial Intelligence.
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$5,000+$25 - $49 / hr2 - 9
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Harmiz is a software development firm headquartered in Bengaluru, India. They focus on Custom Software Development and Web Design.
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$5,000+$50 - $99 / hr2 - 9
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Neptune Labs, a custom software development firm, was founded in 2026. The company specializes in Custom Software Development and IoT development, and is small.
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$1,000+$25 - $49 / hr2 - 9Tambaram, India
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Nefartis Techonologies is a website development company. They offer Web Development and Custom Software Development and are headquartered in Tambaram, India.
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UndisclosedUndisclosed250 - 999Denver, CO
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Launched in 2014, Versent is a cloud consulting & SI company. The team offers cloud consulting & SI and Custom Software Development.
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UndisclosedUndisclosed250 - 999Atlanta, GA
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Engineering company JMT Consultants Inc. Is based in Atlanta, Georgia and Winnipeg, Canada. They provide Engineering and Commercial Development.
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UndisclosedUndisclosed250 - 999Somerville, MA
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Established in 2009, SmartBear is a cloud consulting & SI company. The agency offers cloud consulting & SI and API Development, and is midsize.
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UndisclosedUndisclosed250 - 999Atlanta, GA
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Katalon is an Application Testing company. They were established in 2016 and provide Application Testing and API Development.
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UndisclosedUndisclosed250 - 999Orlando, FL
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Simplify3X, a custom software development company, is based in Orlando, Florida and Bengaluru, India. Established in 2016, the team offers Custom Software Development and Application Testing.
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UndisclosedUndisclosed250 - 999Bellevue, WA
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Auth0 by Okta is a cloud consulting & SI company. Their midsize team is based in Bellevue, Washington and provides cloud consulting & SI and Custom Software Development. The firm was founded in
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UndisclosedUndisclosed250 - 999Boston, MA
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Quickbase, a Digital Strategy company, was established in 1999. The midsize team provides Digital Strategy and Corporate Training & Coaching.
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UndisclosedUndisclosed250 - 999Leuven, Belgium
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Established in 1999, AE is an UX design company. The agency provides UX/UI Design and Mobile App Development.
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$5,000+< $25 / hrFreelancer
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Founded in 2023, devMab is a software development firm. Their services include Custom Software Development and Web Development.
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UndisclosedUndisclosed50 - 249New York, NY
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Zoomin Software is a New York, New York-based Content Writing Services company. They provide Content Writing Services and API Development and were launched in 2015.
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UndisclosedUndisclosed50 - 249Boston, MA
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In Boston, Massachusetts, Ambassador Labs is a midsize cloud consulting & SI company. The team offers cloud consulting & SI and API Development.
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UndisclosedUndisclosed50 - 249Cincinnati, OH
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Snow Commerce, Inc is a midsize Ecommerce Marketing company located in Cincinnati, Ohio. Their services include Ecommerce Marketing and Business Consulting.
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UndisclosedUndisclosed50 - 249Milwaukee, WI
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Borak Solutions LLC is an IT strategy consulting company located in Milwaukee, Wisconsin. Founded in 2012, the team focuses on IT strategy consulting and Cybersecurity.
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Undisclosed< $25 / hrFreelancer
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Web development company Black Cat Coders is based in Hisar, India. Their services include Web Development and API Development.
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$1,000+$25 - $49 / hrFreelancer
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NocodeCraft is a web development firm. They are in Atyrau, Kazakhstan and have small team. They provide Web Development and Mobile App Development.
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$1,000+$25 - $49 / hrFreelancerFlemington, NJ
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Right Angle Techs, a web design company, is headquartered in Flemington, New Jersey. They focus on Web Design and Mobile App Development and were launched in 2020.
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$1,000+$25 - $49 / hrFreelancer
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Hassandev is a website development company established in 2024. The team focuses on Web Development and Mobile App Development and is headquartered in Rawalpindi, Pakistan.
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UndisclosedUndisclosed50 - 249Budapest, Hungary
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Cloud consulting & SI company Alerant Zrt. Focuses on cloud consulting & SI and DevOps Managed Services. They are based in Budapest, Hungary.
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Undisclosed< $25 / hrFreelancer
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MTDev is a small Budapest, Hungary-based web development company. The team focuses on Web Development and API Development.
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$1,000+< $25 / hrFreelancer
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SyrTech is a custom software development firm. They are headquartered in Bydgoszcz, Poland and have small team. They focus on Custom Software Development and Web Development.
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UndisclosedUndisclosedFreelancer
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Clearpath, a mobile app development company, is headquartered in Bangkok, Thailand. They offer Mobile App Development and Web Development.
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$5,000+$50 - $99 / hrFreelancer
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Avrkhub is a small Manawar, India-based software development firm. Their services include Custom Software Development and Web Development.
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UndisclosedUndisclosedFreelancer
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Founded in 2023, Uaiz Man Ltd is an AI Consulting company. The company focuses on AI Consulting and AI Agents.
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Undisclosed$25 - $49 / hrFreelancer
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Navin Sharma – Backend Systems is a mobile app development company established in 2018. The small team provides Mobile App Development and API Development.
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$1,000+$50 - $99 / hrFreelancerKavadarci, North Macedonia
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Taskov Group is a software development company. They are based in Kavadarci, North Macedonia and have small team of experts. Their services include Custom Software Development and AI Agents.
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$5,000+$50 - $99 / hrFreelancerOsijek, Croatia
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FOR IN SOLUTIONS d.o.o. Is a custom software development firm established in 2022. Their team specializes in Custom Software Development and Enterprise App Modernization.
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$1,000+$50 - $99 / hrFreelancerBedford, England
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FORGE is a software development firm established in 2014. Their services include Custom Software Development and Web Development.
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UndisclosedUndisclosedFreelancerSavkhede Bk., India
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PSCogxora is a software development company. They provide Custom Software Development and Microservices Architecture Services and are in Savkhede Bk., India.
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$1,000+$50 - $99 / hrFreelancer
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Small app development company CreateUs, is headquartered in Osan-si, South Korea. Their services include Mobile App Development and Web Development.
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$1,000+< $25 / hrFreelancer
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Hopeland Developers Yazılım ve Danışmanlık Tic. Ltd. Şti. Is an Application Management & Support company. Their services include Application Management & Support.
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Undisclosed< $25 / hrFreelancerGhotki, Pakistan
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Abdul codes, a website development company, was founded in 2024. They provides Web Development and API Development.
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$1,000+$25 - $49 / hrFreelancer
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Subhro Tech, a custom software development company, was launched in 2021. The company specializes in Custom Software Development and Web Development, and is small.
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Undisclosed< $25 / hrFreelancer
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Mikerni is a software development company. Established in 2023, their team provides Custom Software Development and Web Development.
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UndisclosedUndisclosedFreelancerBurma Town, Pakistan
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API Development company Up To Online is in Burma Town, Pakistan. They provide API Development and Graphic Design.
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$1,000+$50 - $99 / hrFreelancer
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Zeitra is a Robotics Process Automation company headquartered in Danville, New Hampshire. The team offers Robotics Process Automation and Low/No Code Development.
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Undisclosed$50 - $99 / hrFreelancerDurham, NC
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TechXellency is a software development firm. They focus on Custom Software Development and Web Development and were established in 2026. The company is in Durham, North Carolina.
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$5,000+< $25 / hrFreelancer
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Custom software development firm Vedra Tech offers Custom Software Development and Web Development. They are based in Gandhinagar, India.
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UndisclosedUndisclosedFreelancer
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Truehorizon is a Kodinar, India-based API Development company. They provide API Development and Custom Software Development.
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$1,000+< $25 / hrFreelancerपुणे, India
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Trio Studios is a custom software development company established in 2025. Their team offers Custom Software Development and Mobile App Development.
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$1,000+< $25 / hrFreelancer
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Based in New Delhi, India, One IT Pillar is a small software development company. Their services include Custom Software Development and Web Development.
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Undisclosed$100 - $149 / hrFreelancer
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Founded in 2026, PageTech Solutions is a custom software development firm. The firm offers Custom Software Development and cloud consulting & SI.
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$1,000+$25 - $49 / hrFreelancer
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Next Tech Hive Technology is a Lucknow, India-based web development company. They specialize in Web Development and Custom Software Development and were launched in 2025.
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$1,000+$25 - $49 / hrFreelancer
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Based in Crawley, England, Semicolon Software Services LTD is a small web development company. Their services include Web Development and Custom Software Development.
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$1,000+$50 - $99 / hrFreelancerHimatnagar, India
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Small Low/No Code Development company Nex Automations, is based in Himatnagar, India. Their services include Low/No Code Development and AI Agents.
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List of the Top 15 API Development Services
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$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.