Top API Developers in the United States
From Silicon Valley’s cloud innovators to fintech specialists in New York and health-tech hubs in Boston, the United States hosts many of the world’s most sought-after API development teams. A reliable API partner can streamline integrations, unlock new revenue channels, and future-proof your tech stack.
Clutch’s rigorous verification process—detailed client interviews, transparent ratings, and in-depth market data—helps you quickly pinpoint agencies that match your needs. Use filters for hourly rate, industry focus, and location to narrow options and build a shortlist that fits your budget and timeline.
Find more resources here:
• Global Top API Development Companies
• API Development Companies in California
-
$5,000+$150 - $199 / hr2 - 9Austin, TX
Services provided
Software development firm M Media provides Custom Software Development and API Development. They are located in Austin, Texas.
Read more -
$1,000+$25 - $49 / hr2 - 9Sheridan, WY
Services provided
Scarabite is a software development firm. In Thessaloniki, Greece and Sheridan, Wyoming, the company was established in 2025. Their services include Custom Software Development and API Development.
Read more -
$25,000+$200 - $300 / hr50 - 249Phoenix, AZ
Services provided
Established in 2019, MindQuest Technology Solutions Llc is a Cybersecurity company. Their team focuses on Cybersecurity and IT managed services.
Read more -
$5,000+$25 - $49 / hr50 - 249Miami, FL
Services provided
BurjSoft, LLC is a software development company in Miami, Florida. Their services include Custom Software Development and Artificial Intelligence.
Read more -
$1,000+$100 - $149 / hr2 - 9Locust Grove, VA
Services provided
Camna, a website development firm, was launched in 2006. The team provides Web Development and E-Commerce Development.
Read more -
Undisclosed$25 - $49 / hr2 - 9Los Angeles, CA
Services provided
Plexipi, an Advertising company, was launched in 2025. The company provides Advertising and Direct Marketing, and is small.
Read more -
$1,000+$50 - $99 / hr2 - 9Laguna Beach, CA
Services provided
PAK Digital is a custom software development company. They focus on Custom Software Development and E-Commerce Development and are in Laguna Beach, California.
Read more -
$10,000+< $25 / hr10 - 49Orlando, FL
Services provided
See all 6 projectsInfylo Techsolutions Ltd. is a custom software development company specializing in creating tailored digital solutions. With a commitment to quality and a strong understanding of business needs, they have received overwhelmingly positive feedback, with clients praising their responsiveness, professionalism, and ability to improve operational efficiency. Approximately 100% of reviewers noted significant improvements in their business processes and satisfaction with Infylo's services.
-
Undisclosed$25 - $49 / hr10 - 49Amesbury, MA
Services provided
TransformingDigitally is an IoT development company. They were founded in 2021 and offer IoT development and API Development.
Read more -
$1,000+$25 - $49 / hr10 - 49Casper, WY
Services provided
Webkrafterz is a custom software development company launched in 2014. The company provides Custom Software Development and Web Development, and is small.
Read more -
UndisclosedUndisclosed10 - 49Worcester, MA
Services provided
Page Authority, a social media marketing company, was launched in 2020. The team offers Social Media Marketing and Search Engine Optimization and is located in Worcester, Massachusetts.
Read more -
$5,000+$150 - $199 / hr10 - 49Boston, MA
Services provided
Established in 2023, Samprand is a web design agency. In Boston, Massachusetts and Madrid, Spain, the team focuses on Web Design and UX/UI Design.
Read more -
$1,000+< $25 / hr10 - 49Phoenix, AZ
Services provided
TKDEVS is a software development company. The team is located in Phoenix, Arizona, and their services include Custom Software Development and API Development.
Read more -
$10,000+$100 - $149 / hr10 - 49Los Angeles, CA
Services provided
DreamViz Software Development LLC is an app development firm. They were established in 2012 and offer Mobile App Development and Blockchain.
Read more -
$5,000+$25 - $49 / hr10 - 49Dallas, TX
Services provided
Squadron Technology Pvt Ltd is an IT managed services company launched in 2020. In Dallas, Texas and Ahmedabad, India, the team provides IT managed services and BI & big data consulting & SI.
Read more -
$1,000+Undisclosed10 - 49New York, NY
Services provided
Fruition Services is a small software development firm located in Sydney, Australia and New Delhi, India. Their services include Custom Software Development and Business Consulting.
Read more -
$1,000+$25 - $49 / hr10 - 49Milton, DE
Services provided
MarcelTech is a branding company. They are based in Milton, Delaware and Karachi, Pakistan and have small team. They offer Branding and Digital Strategy.
Read more -
$1,000+$25 - $49 / hr10 - 49Miami, FL
Services provided
Founded in 2019, Voxvit is a small Pereira, Colombia-based custom software development company. Their services include Custom Software Development and Web Development.
Read more -
$5,000+$50 - $99 / hr10 - 49Irvine, CA
Services provided
GenAI Protos, a Generative AI company, was established in 2024. The team offers Generative AI and Artificial Intelligence and is in Irvine, California.
Read more -
$10,000+$50 - $99 / hr10 - 49Redlands, CA
Services provided
USDevBrokers is a Redlands, California-based website development firm. They specialize in Web Development and Mobile App Development.
Read more -
$1,000+$25 - $49 / hr10 - 49Okemos, MI
Services provided
AmatechXoft Inc. Is a small software development firm in Okemos, Michigan and The Bronx, New York. The team focuses on Custom Software Development and Web Development.
Read more -
UndisclosedUndisclosed10 - 49Boca Raton, FL
Services provided
Zoneomics is an API Development company. The small Boca Raton, Florida-based team provides API Development. The company was established in 2018.
Read more -
UndisclosedUndisclosed10 - 49Denver, CO
Services provided
Cloverhound is an API Development company. The team provides API Development and IT managed services, and the company is headquartered in Denver, Colorado and Charlotte, North Carolina.
Read more -
UndisclosedUndisclosed10 - 49Minneapolis, MN
Services provided
Apigician, a small API Development company, is based in Minneapolis, Minnesota. Their services include API Development.
Read more -
UndisclosedUndisclosed10 - 49Fargo, ND
Services provided
Project Phoenix is a small API Development company founded in 2017. Their services include API Development.
Read more -
UndisclosedUndisclosed10 - 49Mason, OH
Services provided
Cegna is an API Development company established in 2023. Their team provides API Development.
Read more -
UndisclosedUndisclosed10 - 49Franklin, TN
Services provided
Founded in 2002, Rustici Software is an API Development company. The team provides API Development and is based in Franklin, Tennessee.
Read more -
UndisclosedUndisclosed10 - 49Portland, OR
Services provided
Founded in 2004, Periscopic is a business intelligence company and API Development company. The team offers BI & big data consulting & SI and API Development.
Read more -
$5,000+$100 - $149 / hr2 - 9Fountain Hills, AZ
Services provided
Founded in 2004, Oppositemind Technologies LLC is a small e-commerce development company. Their services include E-Commerce Development and Web Design.
Read more -
$25,000+$100 - $149 / hr2 - 9Portland, OR
Services provided
FRE Studios is a Portland, Oregon-based software development firm. The team focuses on Custom Software Development and Web Development.
Read more -
$5,000+$50 - $99 / hr2 - 9Sheridan, WY
Services provided
Ranwip LLC is a Sheridan, Wyoming-based website development company. Launched in 2025, the team provides Web Development and IT strategy consulting.
Read more -
$5,000+$100 - $149 / hr2 - 9Spring Hill, TN
Services provided
Convergent Software is a custom software development company. The team focuses on Custom Software Development and Web Development and is based in Spring Hill, Tennessee.
Read more -
$10,000+$25 - $49 / hr50 - 249Brentwood, TN
Services provided
ChampSoft Inc. Is a midsize IT staff augmentation company located in Brentwood, Tennessee and Bengaluru, India. The team specializes in IT staff augmentation and Low/No Code Development.
Read more -
$5,000+$150 - $199 / hr2 - 9Phoenix, AZ
Services provided
BackslashDev LLC is a website development firm established in 2012. Their services include Web Development and Custom Software Development.
Read more -
UndisclosedUndisclosed2 - 9Raleigh, NC
Services provided
Peddle is a CRM consulting and SI company. Launched in 2022, the team specializes in CRM consulting and SI and Pay Per Click.
Read more -
$5,000+$150 - $199 / hr2 - 9Brandon, FL
Services provided
Free Thinkers Consulting is a CRM consulting and SI company based in Brandon, Florida and San Diego, California. They focus on CRM consulting and SI and Custom Software Development.
Read more -
$10,000+$150 - $199 / hr2 - 9Denver, CO
Services provided
Foundry24 is a custom software development firm founded in 2025. The company focuses on Custom Software Development and cloud consulting & SI, and is small.
Read more -
$25,000+$200 - $300 / hr2 - 9Pflugerville, TX
Services provided
Plotr AI is a web development firm. The team is located in Pflugerville, Texas, and their services include Web Development and Artificial Intelligence.
Read more -
Undisclosed$50 - $99 / hr2 - 9San Francisco, CA
Services provided
Founded in 2026, Exovara Labs LLC is a small San Francisco, California-based website development company. Their team specializes in Web Development and Custom Software Development.
Read more -
$25,000+$150 - $199 / hr2 - 9San Ramon, CA
Services provided
Green Dolphin Software, a CRM consulting and SI company, focus on CRM consulting and SI and ERP consulting and SI. They were founded in 2016.
Read more -
$5,000+$25 - $49 / hr10 - 49Austin, TX
Services provided
See all 11 projects2BTech LLC specializes in API Development, including Application Programming Interface Development and RESTful API Development. Client feedback highlights their attention to detail, effective project management, and timely delivery. Overall, clients appreciate their clear communication and commitment to meeting requirements.
-
Undisclosed< $25 / hr10 - 49Frisco, TX
Services provided
See all 2 projectsWebPatriot specializes in web and mobile app development, including Application Programming Interface Development and AWS server management, with significant experience in cloud-based ERP solutions. Reviews highlight their comprehensive project management, timely delivery, and strong team leadership, leading to substantial business growth for clients. They are praised for their dedication and ownership of projects.
-
$1,000+< $25 / hr10 - 49Tampa, FL
Services provided
Founded in 2024, Advanced Business Modern Solutions is a social media marketing company. The small team focuses on Social Media Marketing and Search Engine Optimization.
Read more -
$10,000+$50 - $99 / hr50 - 249Newark, DE
Services provided
Intrinsic Tech is a software development firm. In Newark, Delaware, the agency offers Custom Software Development and Artificial Intelligence.
Read more -
UndisclosedUndisclosed1,000 - 9,999Middleton, WI
Services provided
Customer Analytics, LLC is an IT strategy consulting company. They were founded in 1993 and offer IT strategy consulting and cloud consulting & SI.
Read more -
$50,000+< $25 / hr50 - 249Allen, TX
Services provided
IT strategy consulting company Reali Solutions focuses on IT strategy consulting and Custom Software Development. They were founded in 2018.
Read more -
UndisclosedUndisclosed1,000 - 9,999Diamond Bar, CA
Services provided
Liferay is an Application Testing company established in 2004. The large team focuses on Application Testing and API Development.
Read more -
$1,000+$50 - $99 / hr50 - 249Dover, DE
Services provided
Strateger AI is an AR/VR development company based in Dover, Delaware. They specialize in AR/VR development and Web Development.
Read more -
$1,000+$25 - $49 / hr50 - 249Albany, NY
Services provided
Excelstech, a midsize AI development company, is based in Albany, New York. Their services include Artificial Intelligence and Web Development.
Read more -
$5,000+$25 - $49 / hr10 - 49Jersey City, NJ
Services provided
See all 1 projectsOcean Shark offers comprehensive services including website development, mobile app development, custom design, and digital marketing. The reviews highlight their exceptional project management, punctuality, and client-centric approach. Clients commend Ocean Shark for their innovative solutions and responsiveness, appreciating their ability to deliver high-quality results that align with business goals, while noting the potential for enhanced client training on new technologies.
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My Matches
Tell us what you need — we’ll match you with top agencies in minutes.
Get My MatchesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
List of the Top 15 United States API Development Services
-
$10,000+$150 - $199 / hr10 - 49Webster Groves, MO
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35.6/40.017.6/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
30% API Development70% Other -
$25,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
37.5/40.018.2/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
10% API Development90% Other -
$1,000+$100 - $149 / hr10 - 49Denver, CO
Ability to deliver
36.7/40.017.6/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35.9/40.017/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$150 - $199 / hr10 - 49Irvine, CA
Ability to deliver
36.1/40.016.6/20 Reviews10/10 Clients & Experience9.5/10 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 - 49Wilder, KY
Ability to deliver
34.6/40.016.2/20 Reviews10/10 Clients & Experience8.4/10 Market PresenceService focus
15% API Development85% Other -
$10,000+< $25 / hr50 - 249Coral Gables, FL
Ability to deliver
34.7/40.016.4/20 Reviews10/10 Clients & Experience8.3/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$50 - $99 / hr50 - 249Fairfield, CT
Ability to deliver
34.1/40.016.4/20 Reviews9.2/10 Clients & Experience8.5/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$100 - $149 / hr10 - 49Houston, TX
Ability to deliver
33.4/40.017/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
15% API Development85% Other -
$10,000+$200 - $300 / hr10 - 49Miami, FL
Ability to deliver
32.1/40.016.2/20 Reviews9.7/10 Clients & Experience6.2/10 Market PresenceService focus
25% API Development75% Other -
$25,000+Undisclosed50 - 249Blue Ash, OH
Ability to deliver
31.5/40.016.8/20 Reviews7.5/10 Clients & Experience7.2/10 Market PresenceService focus
25% API Development75% Other -
$25,000+$50 - $99 / hr250 - 999Plano, TX
Ability to deliver
32.6/40.015.6/20 Reviews10/10 Clients & Experience7/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$150 - $199 / hr50 - 249Los Angeles, CA
Ability to deliver
33.2/40.016.8/20 Reviews9.6/10 Clients & Experience6.8/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr10 - 49Chicago, IL
Ability to deliver
32.8/40.016.4/20 Reviews9.8/10 Clients & Experience6.6/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr10 - 49Sheridan, WY
Ability to deliver
32.7/40.017.2/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$100 - $149 / hr10 - 49Oakbrook Terrace, IL
Ability to deliver
31.8/40.016.6/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
15% API Development85% Other -
$10,000+$150 - $199 / hr10 - 49Plano, TX
Ability to deliver
32.3/40.016.4/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
10% API Development90% Other -
$1,000+$50 - $99 / hr10 - 49Provo, UT
Ability to deliver
32.2/40.016.2/20 Reviews8.1/10 Clients & Experience7.9/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$100 - $149 / hr10 - 49Raleigh, NC
Ability to deliver
30.2/40.016.2/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
25% API Development75% Other -
$25,000+$150 - $199 / hr10 - 49Atlanta, GA
Ability to deliver
31.8/40.016.4/20 Reviews8.9/10 Clients & Experience6.5/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$25 - $49 / hr10 - 49New York, NY
Ability to deliver
30.3/40.016.4/20 Reviews9.9/10 Clients & Experience4/10 Market PresenceService focus
10% API Development90% Other -
$5,000+$50 - $99 / hr10 - 49Fort Wayne, IN
Ability to deliver
30.3/40.016.4/20 Reviews7.9/10 Clients & Experience6/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$150 - $199 / hr10 - 49Houston, TX
Ability to deliver
29.5/40.016.2/20 Reviews5.8/10 Clients & Experience7.5/10 Market PresenceService focus
15% API Development85% Other -
$50,000+$200 - $300 / hr10 - 49San Diego, CA
Ability to deliver
28.6/40.014.6/20 Reviews8.4/10 Clients & Experience5.6/10 Market PresenceService focus
20% API Development80% Other -
$5,000+$150 - $199 / hr10 - 49Jacksonville, FL
Ability to deliver
29/40.016.6/20 Reviews6.7/10 Clients & Experience5.7/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$25 - $49 / hr50 - 249Parker, CO
Ability to deliver
28.3/40.016.2/20 Reviews6.9/10 Clients & Experience5.2/10 Market PresenceService focus
10% API Development90% Other -
$10,000+$150 - $199 / hr2 - 9Alexandria, VA
Ability to deliver
28/40.016.2/20 Reviews7.2/10 Clients & Experience4.6/10 Market PresenceService focus
15% API Development85% Other -
$25,000+$25 - $49 / hr10 - 49Chicago, IL
Ability to deliver
27.8/40.016.6/20 Reviews6.3/10 Clients & Experience4.9/10 Market PresenceService focus
10% API Development90% Other
United States API Development FAQs
U.S. agencies work at the intersection of leading cloud platforms (AWS, Google Cloud, Microsoft Azure) and fast-moving industries such as fintech and SaaS. Local partners offer:
• Proximity to major tech conferences and venture networks
• Deep familiarity with U.S. compliance standards like HIPAA, SOC 2, and PCI-DSS
• Overlapping time zones for smoother collaboration if your team is also U.S.-based
Whether you need a public API to grow an ecosystem or a private integration to unite legacy systems, U.S. developers can leverage domestic market insights and top-tier talent to accelerate delivery.
API specialists in the U.S. span nearly every vertical. Common sectors include:
• Fintech and banking (payment gateways, open banking)
• E-commerce and retail (product feeds, inventory sync)
• Healthcare (FHIR-compliant patient data exchange)
• Logistics and mobility (real-time tracking APIs)
• Media and entertainment (streaming and rights management)
Niche expertise—such as blockchain, IoT, or AI/ML—can often be found in regional clusters like Austin, Seattle, and San Francisco.
- Define success metrics—throughput, latency, user adoption.
- Shortlist agencies with domain case studies similar to your use case.
- Verify security credentials (SOC 2, ISO 27001) and DevOps tooling.
- Request an architecture proposal and proof-of-concept timeline.
- Check Clutch reviews for project management style and communication transparency.
A brief technical interview with the proposed lead architect often reveals how well the team understands your stack and business goals.
• No clear versioning or documentation plan
• Reliance on proprietary middleware that locks you in
• Vague estimates without a discovery phase
• Limited experience with automated testing, CI/CD, or monitoring
• Inability to explain compliance implications for your industry
Choosing a partner who prioritizes scalability, security, and open standards will save costly rewrites down the road.
Hourly rates usually range from $120 – $225, reflecting senior talent and higher operating costs in major tech cities. Typical project budgets break down as:
- Simple REST or GraphQL endpoint: $15,000 – $30,000
- Mid-sized integration layer (multiple third-party systems): $40,000 – $90,000
- Enterprise-grade, high-availability API platform: $100,000+
Many agencies offer discovery sprints or fixed-price MVP packages to de-risk the scope before long-term engagement.