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.
15 Leaders 15 Contenders
5,866 Companies
List of the Top API Development Services
Sponsored
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Undisclosed$25 - $49 / hr2 - 9
Services provided
15% API Development30% Web Development20% E-Commerce Development +4 services20% Mobile App Development5% Application Testing5% Custom Software Development5% Enterprise App ModernizationLk web designers limited is a website development company. They are based in London, England and have small team of experts. Their services include Web Development and Mobile App Development.
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$1,000+$25 - $49 / hr2 - 9
Services provided
15% API Development20% Engineering15% AI Agents +4 services15% AI Development15% Generative AI15% Low/No Code Development5% Other Application DevelopmentLaunched in 2026, Hexalogic is an Engineering company. Their services include Engineering and API Development.
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Undisclosed$25 - $49 / hr2 - 9
Services provided
15% API Development30% Mobile App Development25% Web Development +2 services20% Custom Software Development10% Application TestingVaelo is a mobile application development company. The company is based in Islamabad, Pakistan. Their team specializes in Mobile App Development and Web Development.
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$1,000+< $25 / hr2 - 9
Services provided
15% API Development15% Custom Software Development15% E-Commerce Development +4 services15% Mobile App Development15% Web Design15% Web Development10% UX/UI DesignLaunched in 2026, Trevio is an API Development company. In Ahmedabad, India, the team focuses on API Development and Custom Software Development.
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$10,000+$25 - $49 / hr10 - 49București, Romania
Services provided
10% API Development20% IT Staff Augmentation10% Custom Software Development +7 services10% IT Strategy Consulting10% Low/No Code Development10% Microservices Architecture Services10% Mobile App Development10% Web Development5% AI Development5% BlockchainIT staff augmentation company Webventure Development is located in București, Romania. Their services include IT staff augmentation and Custom Software Development.
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$1,000+< $25 / hr10 - 49Lahore, Pakistan
Services provided
15% API Development15% Mobile App Development15% Web Development +6 services10% AI Agents10% AI Development10% Custom Software Development10% E-Commerce Development10% Graphic Design5% UX/UI DesignEstablished in 2024, Zeetech Solutions is a small API Development company. Their team focuses on API Development and Mobile App Development.
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$5,000+$50 - $99 / hrFreelancerKlagenfurt am Wörthersee, Austria
Services provided
10% API Development55% Mobile App Development20% AI Development +1 service15% Web DevelopmentLaunched in 2014, creative workline GmbH is an app development firm. The team specializes in Mobile App Development and Artificial Intelligence.
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$1,000+$25 - $49 / hr2 - 9
Services provided
10% API Development30% Cloud Consulting & SI15% DevOps Managed Services +5 services10% Custom Software Development10% IT Managed Services10% Mobile App Development10% Web Development5% Generative AIEstablished in 2022, Cloud Parallax, Inc. Is a cloud consulting & SI company. The firm provides cloud consulting & SI and DevOps Managed Services.
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$1,000+< $25 / hrFreelancer
Services provided
20% API Development25% Mobile App Development20% Web Development +5 services10% Blockchain10% Custom Software Development5% AI Development5% DevOps Managed Services5% Microservices Architecture ServicesSee all 2 projectsCTO Engine is a software house that helps businesses grow. We design and build websites, mobile apps, custom software and AI for startups, SMEs and foreign-owned companies across Indonesia and
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$1,000+$25 - $49 / hrFreelancer
Services provided
40% API Development20% Web Development10% AI Development +4 services10% Custom Software Development10% Mobile App Development5% IT Managed Services5% Web DesignLynovra Technology Solutions is a Surabaya, Indonesia-based API Development company. Founded in 2024, the team focuses on API Development and Web Development.
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$1,000+$50 - $99 / hr2 - 9
Services provided
20% API Development30% Custom Software Development15% E-Commerce Development +4 services15% Web Development10% Enterprise App Modernization5% Application Testing5% Microservices Architecture ServicesFounded in 2015, NORD COMP, s.r.o. Is a custom software development company. The small team provides Custom Software Development and API Development.
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$5,000+$25 - $49 / hr10 - 49
Services provided
25% API Development30% CRM Consulting and SI15% Custom Software Development +3 services10% E-Commerce Development10% ERP Consulting and SI10% Web DesignCyber Hybrid Technologies is an API Development company. Established in 2023, the team provides API Development and CRM consulting and SI. The firm is located in Lahore, Pakistan.
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$1,000+$50 - $99 / hr10 - 49San Francisco, CA
Services provided
20% API Development20% AI Development15% Blockchain +6 services10% Custom Software Development10% E-Commerce Development10% Web Development6% Low/No Code Development5% Mobile App Development4% Other Application DevelopmentZavod-IT is an AI company. Their small team is located in San Francisco, California. Their services include Artificial Intelligence and API Development.
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$1,000+Undisclosed10 - 49Dubai, United Arab Emirates
Services provided
20% API Development20% AI Development20% Custom Software Development +2 services20% Email Marketing20% SMS MarketingBrand Master Software Trading LLC is an Email Marketing company. The Dubai, United Arab Emirates-based firm specializes in Email Marketing and Custom Software Development.
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$1,000+< $25 / hr10 - 49
Services provided
20% API Development35% Web Development15% Low/No Code Development +3 services10% Custom Software Development10% E-Commerce Development10% Mobile App DevelopmentWeb development company ITBeam is headquartered in Lahore, Pakistan. They specialize in Web Development and API Development and were launched in 2021.
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$10,000+$150 - $199 / hr10 - 49Gland, Switzerland
Services provided
20% API Development20% Custom Software Development20% E-Commerce Development +2 services20% UX/UI Design20% Web DevelopmentDellarocreative is an user experience design company. Located in Gland, Switzerland, their team provides UX/UI Design and Custom Software Development.
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$5,000+Undisclosed10 - 49Chicago, IL
Services provided
20% API Development20% AI Development20% Cloud Consulting & SI +2 services20% Graphic Design20% Web DevelopmentUFlow Decision Engine, a graphic design agency, offer Graphic Design and cloud consulting & SI. They were founded in 2020.
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$1,000+$50 - $99 / hr10 - 49
Services provided
20% API Development20% Custom Software Development20% E-Commerce Development +2 services20% Mobile App Development20% Web DevelopmentILM Techno Solutions, a custom software development firm, specialize in Custom Software Development and Web Development. They were established in 2014.
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$25,000+$100 - $149 / hr10 - 49Berlin, Germany
Services provided
20% API Development20% AI Consulting20% AI Development +2 services20% Custom Software Development20% Enterprise App ModernizationHeadquartered in Berlin, Germany, brayn.io GmbH is a software development company. Their services include Custom Software Development and Artificial Intelligence.
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$10,000+$25 - $49 / hr10 - 49Gateshead, Australia
Services provided
20% API Development20% Custom Software Development20% Mobile App Development +2 services20% UX/UI Design20% Web DevelopmentRentAAA is an UX design company. They focus on UX/UI Design and Custom Software Development and were established in 2023.
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$10,000+$200 - $300 / hr10 - 49
Services provided
20% API Development20% Cloud Consulting & SI20% Custom Software Development +2 services20% DevOps Managed Services20% Mobile App DevelopmentPelotech is a Seattle, Washington-based cloud consulting & SI company. The team focuses on cloud consulting & SI and Custom Software Development.
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$1,000+$25 - $49 / hr10 - 49
Services provided
20% API Development20% Custom Software Development20% Mobile App Development +2 services20% Social Media Marketing20% Web DevelopmentBased in Bhopal, India, Act T Connect Pvt. Ltd. Is a social media marketing agency. The team offers Social Media Marketing and Custom Software Development.
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UndisclosedUndisclosed10 - 49Zagreb, Croatia
Services provided
20% API Development20% Custom Software Development20% Cybersecurity +2 services20% Mobile App Development20% Other IT Consulting and SIProMDM d.o.o. Is a Cybersecurity company. The Zagreb, Croatia-based agency was launched in 2013. Their services include Cybersecurity and other IT consulting and SI.
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$5,000+$25 - $49 / hr10 - 49
Services provided
20% API Development20% Custom Software Development20% Mobile App Development +2 services20% Search Engine Optimization20% Social Media MarketingPILOTLAB LLC is a social media marketing agency. Founded in 2013, the firm offers Social Media Marketing and Search Engine Optimization.
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$5,000+$25 - $49 / hr10 - 49Sahibzada Ajit Singh Nagar, India
Services provided
20% API Development35% ERP Consulting and SI30% CRM Consulting and SI +1 service15% AI AgentsImminent Softwares is a Sahibzada Ajit Singh Nagar, India-based ERP consulting and SI company. They offer ERP consulting and SI and CRM consulting and SI.
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$1,000+$25 - $49 / hr10 - 49Pudupakkam, India
Services provided
10% API Development11% Low/No Code Development10% Custom Software Development +11 services10% E-Commerce Development10% Microservices Architecture Services10% Mobile App Development10% Web Development7% UX/UI Design5% Ecommerce Marketing5% Pay Per Click5% Search Engine Optimization5% Social Media Marketing1% Other Application Development1% Web DesignTryambaka Techno Solutions is a Pudupakkam, India-based custom software development firm. They specialize in Custom Software Development and Web Development and were founded in 2016.
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$1,000+< $25 / hr2 - 9
Services provided
20% API Development20% Custom Software Development20% IoT Development +2 services20% Mobile App Development20% Web DevelopmentBetaMize is a software development company. Launched in 2023, the team focuses on Custom Software Development and Web Development. The agency is headquartered in Indore, India.
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Undisclosed$50 - $99 / hr2 - 9
Services provided
20% API Development40% Web Development20% E-Commerce Development +1 service20% Mobile App DevelopmentXSquare Media is a web development firm. Located in Chennai, India, the firm specializes in Web Development and API Development.
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Undisclosed$25 - $49 / hr10 - 49Surat, India
Services provided
25% API Development20% E-Commerce Development15% Custom Software Development +3 services15% Mobile App Development15% Web Development10% UX/UI DesignLaunched in 2016, SHOPNO, a small API Development company, is in Surat, India. Their team specializes in API Development and E-Commerce Development.
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Undisclosed< $25 / hr10 - 49Kannur, India
Services provided
25% API Development25% Custom Software Development25% Mobile App Development +1 service25% Web DevelopmentTegimus Infotech is a small custom software development firm in Kannur, India. The team provides Custom Software Development and Web Development.
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$25,000+$300+ / hr250 - 999
Services provided
10% API Development10% BI & Big Data Consulting & SI10% Cloud Consulting & SI +7 services10% Custom Software Development10% DevOps Managed Services10% Enterprise App Modernization10% IT Managed Services10% IT Staff Augmentation10% IT Strategy Consulting10% RecruitingFounded in 1995, TXP Technology x People is an IT strategy consulting company. In Marston Green, England, the team focuses on IT strategy consulting and IT managed services.
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Undisclosed< $25 / hr10 - 49
Services provided
25% API Development15% Custom Software Development15% E-Commerce Development +5 services15% Mobile App Development15% Web Development5% DevOps Managed Services5% Low/No Code Development5% Microservices Architecture ServicesHardikkanajariya.in is an API Development company. They are headquartered in Jam kalyanpur, India and have small team. They provide API Development and Custom Software Development.
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Undisclosed< $25 / hr10 - 49
Services provided
25% API Development15% Mobile App Development15% Web Development +7 services10% Custom Software Development10% E-Commerce Development5% Graphic Design5% Logo5% Other Application Development5% UX/UI Design5% Web DesignAPI Development company codifyingtech is in karachi, Pakistan. The team focuses on API Development and Web Development.
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$5,000+$25 - $49 / hr10 - 49
Services provided
25% API Development25% Web Development20% Mobile App Development +5 services10% E-Commerce Development5% AI Agents5% Application Management & Support5% Custom Software Development5% Enterprise App ModernizationMyAgency is an API Development company. Their small team is in Antananarivo, Madagascar. Their services include API Development and Web Development.
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UndisclosedUndisclosed10 - 49Hongkong, Hong Kong
Services provided
25% API Development70% Custom Software Development5% Web DevelopmentBased in Hongkong, Hong Kong, Guangzhou Shuyun Technology Co., Ltd. Is a custom software development firm. They offer Custom Software Development and API Development and were founded in 2023.
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$1,000+$25 - $49 / hr2 - 9Pune, India
Services provided
15% API Development30% Custom Software Development25% Generative AI +2 services20% Cybersecurity10% Microservices Architecture ServicesPashyaa Technologies is a custom software development company. Headquartered in Pune, India, the agency provides Custom Software Development and Generative AI.
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$25,000+$100 - $149 / hr2 - 9
Services provided
20% API Development20% AI Consulting20% AI Development +2 services20% Custom Software Development20% Generative AITran Development is a small custom software development firm headquartered in San Jose, California. The team specializes in Custom Software Development and Artificial Intelligence.
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UndisclosedUndisclosed50 - 249
Services provided
10% API Development20% Web Development10% Back Office Outsourcing +6 services10% Call Center Services10% Custom Software Development10% DevOps Managed Services10% Mobile App Development10% UX/UI Design10% Web DesignAdnare LLC is a web development firm located in Redmond, Washington and Lahore, Pakistan. The team specializes in Web Development and Web Design.
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$1,000+< $25 / hr10 - 49Jaipur, India
Services provided
10% API Development20% DevOps Managed Services20% Microservices Architecture Services +4 services20% Mobile App Development10% Cloud Consulting & SI10% Low/No Code Development10% Web DevelopmentFounded in 2014, Shallowfeet Consulting is a website development company. The firm specializes in Web Development and Mobile App Development, and is small.
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$1,000+< $25 / hr10 - 49Ambernath, India
Services provided
10% API Development15% Web Development10% AI Development +8 services10% Custom Software Development10% Graphic Design10% Mobile App Development10% UX/UI Design10% Web Design5% Application Management & Support5% E-Commerce Development5% LogoWeb development company Immenso Tech Pvt. Ltd. Was established in 2016. The small team specializes in Web Development and API Development.
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$1,000+$25 - $49 / hr2 - 9Vejbystrand, Sweden
Services provided
10% API Development70% Web Development10% E-Commerce Development +1 service10% IT Managed ServicesEDGEROW is a web development firm. The Vejbystrand, Sweden-based company was founded in 2001. Their team offers Web Development and IT managed services.
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Undisclosed$25 - $49 / hr2 - 9Ahmedabad, India
Services provided
35% API Development35% Microservices Architecture Services20% Web Development +1 service10% Mobile App DevelopmentSee all 1 projectsQuallit Technologies (OPC) Pvt Ltd specializes in Application Programming Interface Development, focusing on API Programming and RESTful API Development. Clients commend their ability to complete complex projects efficiently, highlighting their dedication, timely delivery, and strong customer support. The company is praised for being a good cultural fit and is encouraged to enhance team domain expertise as they expand.
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Undisclosed$100 - $149 / hr2 - 9Chesapeake, VA
Services provided
35% API Development35% Custom Software Development30% IT Strategy ConsultingCloud Dog Consulting is a small software development company based in Chesapeake, Virginia. The team offers Custom Software Development and API Development.
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$1,000+$25 - $49 / hr2 - 9Centurion, South Africa
Services provided
35% API Development35% Web Design30% Custom Software DevelopmentSwart Digital Limited is a web design agency. The Centurion, South Africa-based firm offers Web Design and API Development.
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$1,000+Undisclosed2 - 9
Services provided
35% API Development35% Web Development30% Mobile App DevelopmentAPI Development company WentyTech is based in Staufen, Switzerland. Their services include API Development and Web Development.
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$1,000+$50 - $99 / hr2 - 9Stockholm , Sweden
Services provided
35% API Development15% Microservices Architecture Services10% Cloud Consulting & SI +5 services10% Computer Engineering10% DevOps Managed Services10% Enterprise App Modernization5% Application Management & Support5% Web DevelopmentInt-egrate, an API Development company, was established in 2024. Located in Stockholm , Sweden, the team provides API Development and Microservices Architecture Services.
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Undisclosed< $25 / hr2 - 9Noida, India
Services provided
35% API Development35% IT Strategy Consulting30% IT Managed ServicesYetlix Solution Private Limited, an IT strategy consulting company, was established in 2025. The team focuses on IT strategy consulting and API Development and is based in Noida, India.
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$10,000+$50 - $99 / hr2 - 9Berlin, Germany
Services provided
35% API Development45% IT Staff Augmentation20% Custom Software DevelopmentGRAN Software Solutions GmbH is an IT staff augmentation company. Based in Berlin, Germany, the team provides IT staff augmentation and API Development.
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Undisclosed$25 - $49 / hr2 - 9São Paulo, Brazil
Services provided
35% API Development40% Cybersecurity25% Web DevelopmentRequest.Coffee is a small Cybersecurity company. Established in 2025, the team provides Cybersecurity and API Development.
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$5,000+$25 - $49 / hr2 - 9East Jakarta, Indonesia
Services provided
35% API Development45% Web Development10% E-Commerce Development +1 service10% Other Application DevelopmentQloter Tekno Data, a website development firm, was founded in 2026. They offers Web Development and API Development.
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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 / hr50 - 249L'viv, Ukraine
Ability to deliver
38.3/40.019.6/20 Reviews10/10 Clients & Experience8.8/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
Ability to deliver
34.1/40.016.8/20 Reviews10/10 Clients & Experience7.3/10 Market PresenceService focus
70% API Development30% 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+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr50 - 249Luzern, Switzerland
Ability to deliver
37.8/40.018.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% API Development90% 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
37.6/40.019.2/20 Reviews10/10 Clients & Experience8.4/10 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 -
$5,000+$100 - $149 / hr10 - 49Denver, CO
Ability to deliver
36.8/40.017.8/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
10% API Development90% Other -
$5,000+< $25 / hr50 - 249Stamford, England
Ability to deliver
36.5/40.018.6/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$150 - $199 / hr10 - 49Nashville, TN
Ability to deliver
36.8/40.018/20 Reviews10/10 Clients & Experience8.8/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249Zymna Voda, Ukraine
Ability to deliver
35.9/40.018.2/20 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 -
UndisclosedUndisclosed10 - 49Draper, UT
Ability to deliver
35.8/40.016.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
10% API Development90% 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 -
$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 -
$10,000+$25 - $49 / hr50 - 249Castrop-Rauxel, Germany
Ability to deliver
35.1/40.018.4/20 Reviews10/10 Clients & Experience6.7/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$25 - $49 / hr10 - 49Barranquilla, Colombia
Ability to deliver
35.3/40.017.4/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
10% API Development90% Other -
$50,000+$150 - $199 / hr10 - 49Toronto, Canada
Ability to deliver
33.6/40.016.2/20 Reviews10/10 Clients & Experience7.4/10 Market PresenceService focus
25% API Development75% 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+$150 - $199 / hr50 - 249Wilder, KY
Ability to deliver
34.8/40.016.4/20 Reviews10/10 Clients & Experience8.4/10 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 -
$50,000+$50 - $99 / hr10 - 49Kyiv, Ukraine
Ability to deliver
34.9/40.017/20 Reviews10/10 Clients & Experience7.9/10 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 -
$50,000+$50 - $99 / hr10 - 49
Ability to deliver
34.7/40.015.8/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr50 - 249Indore, India
Ability to deliver
33.1/40.016.2/20 Reviews10/10 Clients & Experience6.9/10 Market PresenceService focus
20% API Development80% 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
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.
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