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+$25 - $49 / hr50 - 249Austin, TX
Services provided
Launched in 2024, Medro INC is a custom software development company. The team offers Custom Software Development and cloud consulting & SI and is located in Austin, Texas and Jaipur, India.
Read more -
$1,000+$25 - $49 / hrFreelancerGreeneville, TN
Services provided
DS Digital Designs, an API Development company, was launched in 2026. Headquartered in Greeneville, Tennessee, the team offers API Development and Web Design.
Read more -
$10,000+$150 - $199 / hr2 - 9Alpharetta, GA
Services provided
JDR Security Solutions is a cloud consulting & SI company. They offer cloud consulting & SI and API Development and are based in Alpharetta, Georgia.
Read more -
$1,000+$50 - $99 / hr2 - 9Miami, FL
Services provided
Based in Miami, Florida, MyGeo LLC is an IT strategy consulting company. Founded in 2024, the team provides IT strategy consulting and Custom Software Development.
Read more -
Undisclosed$25 - $49 / hr2 - 9Vancouver, WA
Services provided
Big data company Lambda AI Solutions was launched in 2025. The small team focuses on BI & big data consulting & SI and IT staff augmentation.
Read more -
$10,000+$50 - $99 / hr2 - 9Sheridan, WY
Services provided
Eternia Solutions is a custom software development company. Launched in 2024, the company is located in Sheridan, Wyoming. Their team provides Custom Software Development and Web Development.
Read more -
$1,000+$50 - $99 / hr2 - 9Orlando, FL
Services provided
See all 1 projectsKomet Studios is a future-focused creative agency helping creators, entrepreneurs, and service-based businesses build premium brand ecosystems. We combine strategy, design, and automation to deliver
Read more -
$1,000+$100 - $149 / hr2 - 9Monroe, UT
Services provided
Open Sky Solutions, an user experience design agency, is located in Monroe, Utah. They focus on UX/UI Design and Custom Software Development.
Read more -
$1,000+< $25 / hr2 - 9Albuquerque, NM
Services provided
Vewnex is an IT strategy consulting company. The agency is in Albuquerque, New Mexico. Their team provides IT strategy consulting and IT managed services.
Read more -
Undisclosed$150 - $199 / hrFreelancerRoseburg, OR
Services provided
Rubiko, a web design agency, specializes in Web Design and Custom Software Development. The agency is based in Roseburg, Oregon.
Read more -
$50,000+$50 - $99 / hr50 - 249Oakland, CA
Services provided
See all 2 projectsBlue Trail Software is a distinguished API Development services company, praised for delivering high-quality, on-time, and on-budget solutions. Their stellar communication and ability to manage ambiguity impressed 100% of reviewers, with 0% citing areas for improvement. The company is noted for its alignment with client values and proactive collaboration.
-
$5,000+$200 - $300 / hr2 - 9Steamboat Springs, CO
Services provided
Melsson Technology is an IT strategy consulting company. They were founded in 2006 and provide IT strategy consulting and Custom Software Development.
Read more -
$10,000+$50 - $99 / hr10 - 49Tampa, FL
Services provided
AI development company Ardellion was established in 2025. The firm offers Artificial Intelligence and Custom Software Development.
Read more -
$1,000+$25 - $49 / hr2 - 9Coldwater, MS
Services provided
MW4 Digital is a website development company. Founded in 2024, the firm is located in Coldwater, Mississippi. Their services include Web Development and BI & big data consulting & SI.
Read more -
$1,000+$25 - $49 / hr10 - 49Miami, FL
Services provided
Located in Miami, Florida, Onyxer Digital is a small web design company. The team focuses on Web Design and Web Development.
Read more -
UndisclosedUndisclosed10 - 49Marlboro Township, NJ
Services provided
Cyber Pioneers, Inc is an AI development company. The company is headquartered in Marlboro Township, New Jersey. Their team specializes in Artificial Intelligence and Web Development.
Read more -
UndisclosedUndisclosed10 - 49Pasadena, CA
Services provided
Web design agency Upgrade Consulting focuses on Web Design and UX/UI Design. They were launched in 2023.
Read more -
$1,000+Undisclosed10 - 49Gilbert, AZ
Services provided
Grab Connected Technologies, an IT staff augmentation company, is located in Gilbert, Arizona. They offer IT staff augmentation and Custom Software Development and were founded in 2022.
Read more -
$5,000+$50 - $99 / hr10 - 49Arlington, VA
Services provided
Font Digital LLC is a small website development firm. They offer Web Development and Web Design and were founded in 2018.
Read more -
$1,000+< $25 / hr10 - 49Los Angeles, CA
Services provided
IDOWS Apex is an e-commerce development firm. The Los Angeles, California-based company was established in 2020. Their team offers E-Commerce Development and Mobile App Development.
Read more -
$5,000+UndisclosedFreelancerRiverside, CA
Services provided
Solac Labs, a website development company, was established in 2025. They provides Web Development and Mobile App Development.
Read more -
UndisclosedUndisclosed10 - 49Denver, CO
Services provided
Answering service company and API Development company ITC Telecom Technology, LLC is in Denver, Colorado. Their services include Call Center Services and API Development.
Read more -
UndisclosedUndisclosed10 - 49Fort Wayne, IN
Services provided
JH Specialty, Inc. Is an API Development company founded in 1998. The team focuses on API Development and is in Fort Wayne, Indiana.
Read more -
UndisclosedUndisclosed10 - 49Evesham, NJ
Services provided
Digital Marketing Group LLC is a small Content Marketing company founded in 2013. Their team specializes in Content Marketing and Search Engine Optimization.
Read more -
UndisclosedUndisclosed10 - 49Garfield, NJ
Services provided
Xy Web Solutions is a web design company launched in 2008. The team focuses on Web Design and Mobile App Development.
Read more -
UndisclosedUndisclosed10 - 49Fayetteville, GA
Services provided
Eniture Technology is a SEO agency. The small Fayetteville, Georgia-based team focuses on Search Engine Optimization and Web Development. The company was founded in 2015.
Read more -
UndisclosedUndisclosed10 - 49Tampa, FL
Services provided
Based in Tampa, Florida, Fizen Technology is an ERP consulting and SI company. The team focuses on ERP consulting and SI and Cybersecurity.
Read more -
UndisclosedUndisclosedFreelancerPrinceton, NJ
Services provided
Automation Testing Services, a small Application Testing company, is based in Toronto, Canada and Princeton, New Jersey. The team focuses on Application Testing and Artificial Intelligence.
Read more -
$5,000+$100 - $149 / hr2 - 9Sheridan, WY
Services provided
Launched in 2026, EverRise Performance is an AI Agents company. The agency offers AI Agents and Artificial Intelligence, and is small.
Read more -
$1,000+$100 - $149 / hr2 - 9Lutz, FL
Services provided
See all 2 projectsYotomations is a Tampa-based AI and automation consultancy founded by Yaakov (Koby) Oranski. We help businesses of all sizes streamline operations, automate sales, and scale faster by combining
Read more -
UndisclosedUndisclosed2 - 9Charlotte, NC
Services provided
Tyetechnology, an IT strategy consulting company, is located in Charlotte, North Carolina. They offer IT strategy consulting and Cybersecurity.
Read more -
UndisclosedUndisclosed2 - 9Ellicott City, MD
Services provided
Established in 2010, DGK Technologies is a custom software development company. The company provides Custom Software Development and Web Development, and is small.
Read more -
$5,000+$100 - $149 / hr2 - 9Sheridan, WY
Services provided
CodeSoft Lab L.L.C., a custom software development company, focuses on Custom Software Development and Web Development. The firm is in Sheridan, Wyoming.
Read more -
$10,000+$150 - $199 / hr2 - 9Kansas City, MO
Services provided
Haystack Midwest Inc, a big data analytics company, is located in Kansas City, Missouri. They focus on BI & big data consulting & SI and cloud consulting & SI.
Read more -
$10,000+$50 - $99 / hr2 - 9Newark, DE
Services provided
Established in 2021, Creative Feel Dev is an API Development company. The team specializes in API Development and Custom Software Development.
Read more -
$1,000+< $25 / hr2 - 9Plattsburgh, NY
Services provided
Quantum Script LLC is an API Development company launched in 2026. The team offers API Development and Custom Software Development.
Read more -
$5,000+$25 - $49 / hr50 - 249Princeton, NJ
Services provided
See all 13 projectsAroopa is an API Development company specializing in comprehensive API integration and application programming services. Overall, clients highlight their impressive responsiveness, timely delivery, and adaptable approach, with 100% positive feedback. Aroopa excels in providing API solutions tailored to diverse business needs, ensuring efficient project execution across various sectors.
-
$5,000+$25 - $49 / hr10 - 49Sheridan, WY
Services provided
Established in 2023, WaveZync is a software development company. The company focuses on Custom Software Development and Web Development, and is small.
Read more -
$1,000+$150 - $199 / hrFreelancerEssex Junction, VT
Services provided
Established in 2025, Big Light Studio is a small Essex Junction, Vermont-based IT strategy consulting company. Their team specializes in IT strategy consulting and cloud consulting & SI.
Read more -
Undisclosed$50 - $99 / hrFreelancerRohnert Park, CA
Services provided
Czezar Design & Development is an UX agency in Rohnert Park, California. They specialize in UX/UI Design and Corporate Photography.
Read more -
$1,000+$50 - $99 / hrFreelancerEvesham, NJ
Services provided
Roseware is an Enterprise App Modernization company established in 2025. The team specializes in Enterprise App Modernization and Application Management & Support.
Read more -
$25,000+$50 - $99 / hr50 - 249Scottsdale, AZ
Services provided
Scottsdale Cloud Specialists, a cloud consulting & SI company, is located in Scottsdale, Arizona. They specialize in cloud consulting & SI and Custom Software Development.
Read more -
$10,000+$100 - $149 / hrFreelancerMiami, FL
Services provided
Nova Sigil, a software development firm, was founded in 2026. Headquartered in Miami, Florida, the team specializes in Custom Software Development and API Development.
Read more -
$5,000+$25 - $49 / hr10 - 49Austin, TX
Services provided
Founded in 2019, Devzonik is an e-commerce development company. The team provides E-Commerce Development and Web Development.
Read more -
$1,000+< $25 / hr50 - 249Lewes, DE
Services provided
Qurilo Solutions Pvt. Ltd., a midsize cloud consulting & SI company, is based in Delhi, India and Lewes, Delaware. The team specializes in cloud consulting & SI and ERP consulting and SI.
Read more -
$25,000+$25 - $49 / hr50 - 249Jacksonville, FL
Services provided
See all 1 projectsTailored software solutions and IT staffing. Software factory IT Support IT Staffing Cybersecurity Data & AI solutions Odoo implementations Part of a group of companies with 40+ years of
Read more -
$1,000+$25 - $49 / hrFreelancerFlemington, NJ
Services provided
Right Angle Techs, a web design company, is headquartered in Flemington, New Jersey. They focus on Web Design and Mobile App Development and were launched in 2020.
Read more -
Undisclosed$50 - $99 / hrFreelancerDurham, NC
Services provided
TechXellency is a software development firm. They focus on Custom Software Development and Web Development and were established in 2026. The company is in Durham, North Carolina.
Read more -
$1,000+$25 - $49 / hr2 - 9Anaheim, CA
Services provided
Launch Up Labs, a software development firm, was founded in 2024. The agency offers Custom Software Development and Web Development.
Read more -
UndisclosedUndisclosed2 - 9Henrico, VA
Services provided
Launched in 2023, Synergim LLC is a small Henrico, Virginia-based cloud consulting & SI company. Their team provides cloud consulting & SI and Cybersecurity.
Read more
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
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
38.1/40.019.2/20 Reviews10/10 Clients & Experience8.9/10 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+$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 -
$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 -
$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
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 -
$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 - 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
33.4/40.017.2/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
15% API Development85% Other -
$50,000+$50 - $99 / hr10 - 49San Francisco, CA
Ability to deliver
33.9/40.016/20 Reviews10/10 Clients & Experience7.9/10 Market PresenceService focus
10% API Development90% 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 -
$5,000+$25 - $49 / hr50 - 249Davie, FL
Ability to deliver
32/40.017.2/20 Reviews9.6/10 Clients & Experience5.2/10 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 -
$25,000+$25 - $49 / hr10 - 49Naperville, IL
Ability to deliver
31.5/40.016.4/20 Reviews8.3/10 Clients & Experience6.8/10 Market PresenceService focus
10% API Development90% Other -
$25,000+$100 - $149 / hr50 - 249Austin, TX
Ability to deliver
30.2/40.019/20 Reviews6/10 Clients & Experience5.2/10 Market PresenceService focus
15% API Development85% 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
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.