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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UndisclosedUndisclosedFreelancerBad Orb, Germany
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Dazoro is a web development company founded in 2026. The company offers Web Development and Application Management & Support.
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$1,000+$25 - $49 / hrFreelancer
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API Development company Bashlog was founded in 2026. The company provides API Development and Artificial Intelligence.
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$1,000+$100 - $149 / hrFreelancerHideaway, TX
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Pineywoods Web is a web development firm located in Hideaway, Texas. They focus on Web Development and API Development and were established in 2025.
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$1,000+< $25 / hrFreelancer
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FZDigitalStudio is an app development company. Their small team is located in Sialkot, Pakistan and provides Mobile App Development and Web Development. The firm was founded in 2026.
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UndisclosedUndisclosedFreelancer
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Web development company Inovix AS is located in Oslo, Norway. The team provides Web Development and Custom Software Development.
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$1,000+$25 - $49 / hrFreelancer
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Launched in 2024, Storvexa is a small custom software development firm. Their services include Custom Software Development and Web Development.
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$1,000+$25 - $49 / hrFreelancer
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Founded in 2022, Ilarium is an AI Agents company. The firm offers AI Agents and Artificial Intelligence.
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Undisclosed$50 - $99 / hrFreelancerElbląg, Poland
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Natalia Szczepanik (nszczepanik.pl), an AI company, was established in 2022. The team specializes in Artificial Intelligence and AI Agents and is in Elbląg, Poland.
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$1,000+$50 - $99 / hrFreelancer
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LITTLE ENDIAN DI GUGLIELMINO FABRIZIO GIUSEPPE is an AI Agents company. They are located in Pianezza, Italy and have small team of experts. Their services include AI Agents and API Development.
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UndisclosedUndisclosed2 - 9Sibulan, Philippines
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See all 1 projectsStratBit IT Solutions is an IT services company that appears to focus on website improvement projects. However, the feedback reveals a negative experience, with 100% of the reviews highlighting issues such as poor responsiveness, high costs, and lack of professionalism. The reviews suggest inadequate project management and a limited team presence, making it challenging to recommend their services.
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UndisclosedUndisclosed2 - 9
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Ergsense, an Architectural Design company, was founded in 2014. In Olympia, Washington, the team focuses on Architectural Design and API Development.
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UndisclosedUndisclosed10 - 49Providencia, Chile
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Headquartered in Providencia, Chile, Celcom is a small SMS Marketing company. The team specializes in SMS Marketing and API Development.
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UndisclosedUndisclosed10 - 49
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Kind Systems, a Product Design company, is headquartered in Irvine, California. Established in 2018, the team specializes in Product Design and Custom Software Development.
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UndisclosedUndisclosed10 - 49Stamford, CT
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Founded in 2020, Directus is a website development firm. The agency focuses on Web Development and API Development, and is small.
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UndisclosedUndisclosed10 - 49San Jose, CA
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Watermelon Software Inc, an Application Testing company, is in San Jose, California and Singapore. Their services include Application Testing and API Development.
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UndisclosedUndisclosed10 - 49Tigard, OR
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Axian is an user experience design agency. They are located in Tigard, Oregon, and their services include UX/UI Design and Enterprise App Modernization.
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UndisclosedUndisclosed50 - 249Pasadena, CA
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Midsize big data analytics company New Digital IT Inc., is based in Pasadena, California. Their services include BI & big data consulting & SI and cloud consulting & SI.
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UndisclosedUndisclosedFreelancerVista, CA
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Founded in 2024, Aurelius Solutions is a custom software development company and API Development company. The team offers Custom Software Development and API Development.
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UndisclosedUndisclosed50 - 249Akron, OH
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Staffing company Public Insight was launched in 2012. Headquartered in Akron, Ohio, the team focuses on Staffing and Recruiting.
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UndisclosedUndisclosedFreelancer
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Digital Provisioners is a Wenatchee, Washington-based cloud consulting & SI and API Development company. They offer cloud consulting & SI and API Development and were established in 1981.
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UndisclosedUndisclosedFreelancer
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Based in Texas, Believable Magic is an API Development company. Their services include API Development and Custom Software Development.
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UndisclosedUndisclosedFreelancerLongview, TX
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UX design agency and API Development company Health Intellect was established in 2019. The firm offers UX/UI Design and API Development, and is small.
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UndisclosedUndisclosedFreelancerAustin, TX
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RFIDENTITY, Inc is a software development firm and API Development company launched in 2016. The company provides Custom Software Development and API Development.
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UndisclosedUndisclosedFreelancerNew York, NY
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Data Analytics NYC, a small data analytics company and API Development company, is in New York, New York. The team focuses on BI & big data consulting & SI and API Development.
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UndisclosedUndisclosed50 - 249Woodbridge, CT
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ChemWerth Inc. Is a midsize Product Design company located in Woodbridge, Connecticut and Shanghai, China. Their services include Product Design and Compliance Consulting.
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UndisclosedUndisclosed50 - 249Ras Al-Khaimah, United Arab Emirates
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Databeys is an Email Marketing company launched in 2020. The firm provides Email Marketing and CRM consulting and SI, and is midsize.
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$1,000+$25 - $49 / hr10 - 49
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See all 1 projectsGwikEcom offers website development services, particularly in creating custom-coded e-commerce sites on platforms like Shopify. The overall feedback highlights GwikEcom's punctuality, cultural alignment, and attention to detail, though there is a suggestion for improvement in their process workflow.
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UndisclosedUndisclosed2 - 9
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Judini is a Generative AI company. They were established in 2023 and specialize in Generative AI and API Development.
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UndisclosedUndisclosed2 - 9Hialeah, FL
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Software development company Daasly is in Hialeah, Florida. Their services include Custom Software Development and API Development.
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UndisclosedUndisclosed2 - 9Newburgh, ME
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Acadia Services & Solutions, LLC is a website development company. They specialize in Web Development and API Development and were launched in 2007. The agency is based in Newburgh, Maine.
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UndisclosedUndisclosed2 - 9Boca Raton, FL
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Founded in 2023, DK Coder Solutions is a web development company. The team focuses on Web Development and API Development.
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UndisclosedUndisclosed2 - 9Denver, CO
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Updraft is a mobile application development firm launched in 2015. The firm offers Mobile App Development and API Development.
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UndisclosedUndisclosed2 - 9
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Founded in 2020, RedShift Development, LLC is a small web development firm located in Longmont, Colorado. Their team focuses on Web Development and Custom Software Development.
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UndisclosedUndisclosed2 - 9
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Founded in 2023, Ericson Development is a small API Development company based in Erie, Colorado. Their team offers API Development and cloud consulting & SI.
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UndisclosedUndisclosed2 - 9Marietta, GA
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API Development company OracleAPEXConsultant was launched in 2010. Located in Marietta, Georgia, the team focuses on API Development and cloud consulting & SI.
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UndisclosedUndisclosed2 - 9Lewes, DE
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Launched in 2023, Tipz AI is a Generative AI company. The team offers Generative AI and API Development and is based in Lewes, Delaware.
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UndisclosedUndisclosed2 - 9Newtown, CT
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SpartanSoft, Inc. Is a software development company headquartered in Newtown, Connecticut. Their services include Custom Software Development and API Development.
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UndisclosedUndisclosed2 - 9Mentor, OH
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CodeSmart LLC is a website development company. Founded in 2012, the firm is located in Mentor, Ohio. Their services include Web Development and Mobile App Development.
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UndisclosedUndisclosed2 - 9Jamestown, RI
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Lush Group Inc is a small IT strategy consulting company. Launched in 1990, the team focuses on IT strategy consulting and Custom Software Development.
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UndisclosedUndisclosed2 - 9Louisville, KY
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S2 SYSTEMS, LLC is a website development firm. Their team is based in Louisville, Kentucky and offers Web Development and Mobile App Development.
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UndisclosedUndisclosed2 - 9
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Launched in 2021, Meridian Software Consulting, LLC is a CRM consulting and SI company. The team specializes in CRM consulting and SI and Mobile App Development.
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UndisclosedUndisclosed2 - 9Brooklyn, NY
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Custom software development company Control Developers specializes in Custom Software Development and Mobile App Development. They are headquartered in Brooklyn, New York.
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UndisclosedUndisclosed2 - 9
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Eggheads IO is a software development company. The company is based in Buffalo, New York. Their team provides Custom Software Development and E-Commerce Development.
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UndisclosedUndisclosed2 - 9
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Space Age Media is an IT staff augmentation company. The New York City, New York-based team offers IT staff augmentation and API Development.
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UndisclosedUndisclosed2 - 9Austin, TX
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JTM Global Enterprises LLC is an IT managed services company. Based in Austin, Texas, the agency focuses on IT managed services and API Development.
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UndisclosedUndisclosed2 - 9Carlsbad, CA
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Launched in 2020, QADeputy is an Application Testing company. The team provides Application Testing and API Development.
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UndisclosedUndisclosed2 - 9New York City, NY
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Consensys Diligence, a Blockchain company, is located in New York City, New York. Established in 2017, the team specializes in Blockchain and API Development.
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UndisclosedUndisclosed2 - 9
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Scanerr is an Application Testing company. In San Antonio, Texas, their team focuses on Application Testing and API Development.
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UndisclosedUndisclosed2 - 9
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Ronin Data Solutions is a small big data company in Brooklyn, New York. Their services include BI & big data consulting & SI and API Development.
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UndisclosedUndisclosed2 - 9
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Automation Ace is a Low/No Code Development company. They focus on Low/No Code Development and Artificial Intelligence and are headquartered in Los Angeles, California.
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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.