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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$1,000+$25 - $49 / hrFreelancer
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Latitute is a Noida, India-based software development company. Their services include Custom Software Development and Mobile App Development.
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UndisclosedUndisclosedFreelancer
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Anantrixx Technologies is an AI Agents company founded in 2026. The firm offers AI Agents and Artificial Intelligence.
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$1,000+$25 - $49 / hrFreelancer
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Xwen AI is a software development company. In Karachi, Pakistan, the company was founded in 2023. Their team provides Custom Software Development and Web Development.
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$1,000+< $25 / hrFreelancerJetpur, India
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Hozefa Khety is a Jetpur, India-based website development company. They provide Web Development and Mobile App Development and were founded in 2021.
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$1,000+$25 - $49 / hrFreelancerDar es Salaam, Tanzania
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Patrick Paul, a custom software development firm, was launched in 2025. The team offers Custom Software Development and Web Development and is located in Dar es Salaam, Tanzania.
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$1,000+$25 - $49 / hrFreelancerViuz-en-Sallaz, France
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Wiizup is a web development firm. The team offers Web Development and Mobile App Development and is in Viuz-en-Sallaz, France.
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UndisclosedUndisclosedFreelancer
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ZELQUENT TECH is a website development company launched in 2026. The agency focuses on Web Development and Web Design.
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Undisclosed< $25 / hrFreelancer
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Wasetech, a CRM consulting and SI company, is based in Istanbul, Türkiye. Their services include CRM consulting and SI and Custom Software Development.
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$1,000+$150 - $199 / hrFreelancer
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Founded in 2026, Excend is a small Giffnock, Scotland-based Business Consulting company. Their services include Business Consulting and Low/No Code Development.
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Undisclosed< $25 / hrFreelancer
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Small Low/No Code Development company Prishanwi Tech Services, is headquartered in Kolkata, India. Their services include Low/No Code Development and Custom Software Development.
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$1,000+$25 - $49 / hrFreelancerLucknow, India
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Makeuforward is a web design agency. They are based in Lucknow, India, and their services include Web Design and Web Development.
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$1,000+$25 - $49 / hrFreelancerVillavicencio, Colombia
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Website development company Cristian D. Moreno - Kyonax was established in 2018. The team offers Web Development and Custom Software Development and is headquartered in Villavicencio, Colombia.
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$1,000+$25 - $49 / hrFreelancer
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Founded in 2026, Frontier Layer is a website development firm. Their services include Web Development and Blockchain.
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$5,000+$25 - $49 / hrFreelancer
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ESCRIVA LIMITED is a software development firm. The agency is based in Nairobi, Kenya. Their team specializes in Custom Software Development and Mobile App Development.
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$1,000+< $25 / hrFreelancer
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AIMLMWORLD is a small software development firm located in meerut, India. The team offers Custom Software Development and Blockchain.
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Undisclosed$100 - $149 / hrFreelancerPasadena, CA
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Cartertek is a custom software development company. They were launched in 2026, and their services include Custom Software Development and AI Consulting.
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$5,000+$100 - $149 / hrFreelancerHenderson, NV
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Time Theory Development is a Henderson, Nevada-based custom software development company. Their services include Custom Software Development and Artificial Intelligence.
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Undisclosed$50 - $99 / hrFreelancer
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Custom software development firm Lighthouseconsulting was founded in 1998. Located in Duxbury, Massachusetts, the team focuses on Custom Software Development and API Development.
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Undisclosed$100 - $149 / hrFreelancerWaxhaw, NC
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Founded in 2026, Wolfe Integration Systems is an AI Consulting company. The team focuses on AI Consulting and Custom Software Development.
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$1,000+< $25 / hrFreelancerChișinău, Moldova
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Established in 2026, shadowforge — Web & AI Studio is a small website development firm based in Chișinău, Moldova. Their team specializes in Web Development and E-Commerce Development.
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$1,000+$25 - $49 / hrFreelancerCoromandel, New Zealand
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Established in 2026, Aaron Martin, a small IT strategy consulting company, is based in Coromandel, New Zealand. Their team offers IT strategy consulting and IT managed services.
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$1,000+$50 - $99 / hrFreelancerSheridan, WY
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SaTekk LLC is a software development company headquartered in Sheridan, Wyoming. Founded in 2026, the team offers Custom Software Development and Artificial Intelligence.
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$1,000+< $25 / hrFreelancer
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VROMSOFT Technologies Pvt Ltd, a software development company, was founded in 2024. The team offers Custom Software Development and CRM consulting and SI and is located in Pune, India.
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$1,000+$25 - $49 / hrFreelancer
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Founded in 2024, Devlly is a small Kryvyi Rih, Ukraine-based software development company. Their team provides Custom Software Development and Artificial Intelligence.
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$1,000+< $25 / hrFreelancer
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FlatOrbit is a software development company. Established in 2026, the team provides Custom Software Development and E-Commerce Development. The agency is based in Dharashiv, India.
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$10,000+$150 - $199 / hrFreelancerCohoes, NY
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Matranga Codeworks LLC, a small IT strategy consulting company, is located in Cohoes, New York. The team specializes in IT strategy consulting and Custom Software Development.
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$1,000+< $25 / hrFreelancer
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SabaTech Solutions, an AI company, was launched in 2024. The firm offers Artificial Intelligence and Web Development.
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Undisclosed$50 - $99 / hrFreelancerKraków, Poland
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Utilizing Cloud is a Kraków, Poland-based software development company. Their services include Custom Software Development and cloud consulting & SI.
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$1,000+< $25 / hrFreelancer
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ApperDev is a mobile application development company launched in 2026. The team provides Mobile App Development and Application Management & Support.
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$1,000+< $25 / hrFreelancer
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SKYGALAXY INFOTECH LLP is a software development company. The Viramgam, India-based team offers Custom Software Development and E-Commerce Development.
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Undisclosed$25 - $49 / hrFreelancer
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Small AI Agents company WorldWise Solutions, is based in Islamabad, Pakistan. Their services include AI Agents and Artificial Intelligence.
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$10,000+$50 - $99 / hrFreelancer
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IDEALIGHT is a web development company. Launched in 2026, the team focuses on Web Development and Mobile App Development. The agency is headquartered in kryvyi Rih, Ukraine.
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Undisclosed< $25 / hrFreelancer
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Founded in 2024, Precisionmlai is an AI Agents company. The team provides AI Agents and Artificial Intelligence.
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UndisclosedUndisclosed10 - 49
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Uuhuw Software House is an API Development company headquartered in Orlando, Florida. They specialize in API Development and Mobile App Development and were established in 2015.
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UndisclosedUndisclosed10 - 49St. Petersburg, FL
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Established in 2022, Bit Solution Group LLC, a small API Development company, is located in St. Petersburg, Florida. Their team provides API Development and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49Seattle, WA
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Treadwell Data, an API Development company, is headquartered in Seattle, Washington. Established in 2014, the team provides API Development and IT managed services.
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UndisclosedUndisclosed10 - 49Menlo Park, CA
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WireMock, a small API Development company, is in Menlo Park, California. The team provides API Development and cloud consulting & SI.
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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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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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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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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+$25 - $49 / hr10 - 49Kyiv, Ukraine
Ability to deliver
34.8/40.016.8/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
70% API Development30% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
38.5/40.019.8/20 Reviews10/10 Clients & Experience8.8/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35.4/40.017.4/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
30% API Development70% 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 -
$25,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
37.5/40.018.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
37.3/40.018/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
10% API Development90% Other -
$5,000+< $25 / hr50 - 249Stamford, England
Ability to deliver
37/40.019/20 Reviews10/10 Clients & Experience8/10 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 -
$1,000+$100 - $149 / hr10 - 49Denver, CO
Ability to deliver
36.5/40.017.4/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
10% API Development90% Other -
UndisclosedUndisclosed10 - 49Draper, UT
Ability to deliver
36.3/40.017.2/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249Zymna Voda, Ukraine
Ability to deliver
36.1/40.018.4/20 Reviews10/10 Clients & Experience7.7/10 Market PresenceService focus
10% API Development90% Other -
$50,000+$25 - $49 / hr50 - 249Mumbai, India
Ability to deliver
35.8/40.017.8/20 Reviews9.8/10 Clients & Experience8.2/10 Market PresenceService focus
10% API Development90% 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+$150 - $199 / hr10 - 49Irvine, CA
Ability to deliver
35.7/40.016.2/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$150 - $199 / hr50 - 249Wilder, KY
Ability to deliver
35.4/40.017/20 Reviews10/10 Clients & Experience8.4/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$25 - $49 / hr10 - 49Barranquilla, Colombia
Ability to deliver
35.5/40.017.6/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr50 - 249Luzern, Switzerland
Ability to deliver
35.2/40.018.4/20 Reviews10/10 Clients & Experience6.8/10 Market PresenceService focus
10% API Development90% Other -
$1,000+$100 - $149 / hr2 - 9Vancouver, Canada
Ability to deliver
35.5/40.016.6/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% API Development90% Other -
$50,000+$50 - $99 / hr10 - 49
Ability to deliver
35.2/40.015.8/20 Reviews10/10 Clients & Experience9.4/10 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 -
$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+$100 - $149 / hr10 - 49
Ability to deliver
31/40.017/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
45% API Development55% Other -
$10,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
Ability to deliver
33.9/40.018/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
15% API Development85% Other -
$1,000+< $25 / hr50 - 249Jaipur, India
Ability to deliver
33.2/40.018/20 Reviews8/10 Clients & Experience7.2/10 Market PresenceService focus
20% API Development80% Other -
$25,000+$50 - $99 / hr10 - 49Sydney, Australia
Ability to deliver
34.1/40.018/20 Reviews10/10 Clients & Experience6.1/10 Market PresenceService focus
15% API Development85% Other -
$10,000+$50 - $99 / hr10 - 49Timișoara, Romania
Ability to deliver
34.6/40.016.8/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
10% API Development90% Other -
$1,000+Undisclosed50 - 249Sahibzada Ajit Singh Nagar, India
Ability to deliver
34.3/40.017.2/20 Reviews8.6/10 Clients & Experience8.5/10 Market PresenceService focus
10% API Development90% Other -
$1,000+$25 - $49 / hr10 - 49Surat, India
Ability to deliver
34/40.016.4/20 Reviews9.1/10 Clients & Experience8.4/10 Market PresenceService focus
15% API Development85% 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.