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.
-
$50,000+$100 - $149 / hr250 - 999
Services provided
Region is an AI company. The midsize Islamabad, Pakistan-based team focuses on Artificial Intelligence and E-Commerce Development. The company was founded in 2019.
Read more -
UndisclosedUndisclosed250 - 999Cambridge, MA
Services provided
Launched in 2013, CapeStart is an AI Agents company. The team provides AI Agents and AI Consulting and is based in Cambridge, Massachusetts.
Read more -
Undisclosed< $25 / hr50 - 249Malolos, Philippines
Services provided
Xentra Solutions LLC, a web design company, specializes in Web Design and Mobile App Development. The agency is based in Malolos, Philippines and Las Vegas, Nevada.
Read more -
$5,000+$150 - $199 / hr2 - 9
Services provided
See all 1 projectsIn the AI era, the real advantage isn’t technology — it’s people, connections, and the knowledge they share. At Temper we work with innovation accelerators, Government departments and
Read more -
$10,000+$50 - $99 / hr2 - 9
Services provided
Established in 2022, 3VD Solutions SH.P.K. Is a custom software development company. The agency offers Custom Software Development and API Development.
Read more -
UndisclosedUndisclosed2 - 9Toronto, Canada
Services provided
Founded in 2021, CJ Technologies is a web development company. Based in Toronto, Canada, the team focuses on Web Development and API Development.
Read more -
$1,000+$50 - $99 / hr2 - 9Omaha, NE
Services provided
BMVA Digital is a branding agency. Their small team is based in Omaha, Nebraska. Their services include Branding and Social Media Marketing.
Read more -
Undisclosed$25 - $49 / hr2 - 9
Services provided
Mass Creations, a software development company, was launched in 2020. Located in Bury St Edmunds, England, the team specializes in Custom Software Development and E-Commerce Development.
Read more -
$5,000+$100 - $149 / hr2 - 9
Services provided
DevTeam Co., Ltd. Is a website development firm. They offer Web Development and Artificial Intelligence and were established in 2025. The company is based in Incheon, South Korea.
Read more -
$25,000+$50 - $99 / hr2 - 9Warrington, England
Services provided
Dotnet is a website development company. Based in Warrington, England, the team provides Web Development and E-Commerce Development.
Read more -
$1,000+$25 - $49 / hr2 - 9Lahore, Pakistan
Services provided
Geeks Force is an API Development company. Established in 2020, the team specializes in API Development and Application Testing. The company is headquartered in Lahore, Pakistan.
Read more -
$10,000+$50 - $99 / hr2 - 9Toronto, Canada
Services provided
Custom software development firm Sodelia Inc. Focuses on Custom Software Development and Artificial Intelligence. They are in Toronto, Canada.
Read more -
$5,000+$50 - $99 / hr2 - 9Knutsford, England
Services provided
Pytech, a branding firm, was founded in 2021. The team focuses on Branding and Web Design and is headquartered in Knutsford, England.
Read more -
$1,000+$50 - $99 / hr2 - 9Klaipėda, Lithuania
Services provided
Web development firm Owlet Studio was founded in 2024. The firm focuses on Web Development and E-Commerce Development, and is small.
Read more -
$10,000+$100 - $149 / hr2 - 9
Services provided
Launched in 2022, W3r.one is a small web development firm. Their services include Web Development and Mobile App Development.
Read more -
$5,000+$50 - $99 / hr2 - 9Porto, Portugal
Services provided
Remote Flags is a web development firm. The Porto, Portugal-based company was established in 2022. Their team focuses on Web Development and DevOps Managed Services.
Read more -
$1,000+< $25 / hr2 - 9Korpawli, India
Services provided
Setoofy , a website development company, is headquartered in Korpawli, India. The team provides Web Development and Wearable App Development.
Read more -
$1,000+$25 - $49 / hr2 - 9
Services provided
COOLIT d.o.o. Is a website development firm. Launched in 2024, the firm specializes in Web Development and API Development.
Read more -
Undisclosed$25 - $49 / hr2 - 9
Services provided
Launched in 2024, 41Labs is an artificial intelligence company. The small team focuses on Artificial Intelligence and Generative AI.
Read more -
Undisclosed$25 - $49 / hr2 - 9Pune, India
Services provided
SOFTECH CODERZ IT SOLUTIONS is a website development company. Headquartered in Navi Mumbai, India and Pune, India, the agency specializes in Web Development and Mobile App Development.
Read more -
$1,000+$25 - $49 / hr2 - 9
Services provided
AppVaze is an app development firm launched in 2019. The firm provides Mobile App Development and Web Development, and is small.
Read more -
$1,000+< $25 / hr2 - 9Kathmandu, Nepal
Services provided
Nuptse Technology, a website development firm, is located in Kathmandu, Nepal. They offer Web Development and API Development and were established in 2018.
Read more -
$5,000+$50 - $99 / hr2 - 9Barcelona, Spain
Services provided
UpturnRenals is a web development company. They are located in Barcelona, Spain and have small team. They provide Web Development and E-Commerce Development.
Read more -
$50,000+$50 - $99 / hr2 - 9
Services provided
Founded in 2022, ANTU DEVOPS, a small other IT consulting and SI company, is based in Ciudad Victoria, Mexico. Their team provides other IT consulting and SI and Custom Software Development.
Read more -
$1,000+$25 - $49 / hr2 - 9
Services provided
Kavita Systems, a software development company, was launched in 2015. The team provides Custom Software Development and Web Development and is headquartered in Cluj-Napoca, Romania.
Read more -
$1,000+$25 - $49 / hr2 - 9
Services provided
In București, Romania, BINARY FUSION SRL is a web design company. They specialize in Web Design and Graphic Design.
Read more -
$5,000+$25 - $49 / hr2 - 9Oradea, Romania
Services provided
GIB Media is a web development firm. They were launched in 2010 and focus on Web Development and Mobile App Development.
Read more -
Undisclosed< $25 / hr2 - 9Sheridan, WY
Services provided
Sabi LLC is a Sheridan, Wyoming-based custom software development company. Founded in 2021, the team provides Custom Software Development and Web Development.
Read more -
$5,000+Undisclosed2 - 9Ciudad de México, Mexico
Services provided
Codifika Technologies is a custom software development firm. They provide Custom Software Development and API Development and are based in Ciudad de México, Mexico.
Read more -
$10,000+Undisclosed2 - 9Clearwater, FL
Services provided
Byte Bot, a software development company, offers Custom Software Development and API Development. The company is based in Clearwater, Florida.
Read more -
$1,000+$25 - $49 / hr2 - 9
Services provided
Creativity Coder, a custom software development company, focuses on Custom Software Development and Web Development. The firm is based in Ahmedabad, India.
Read more -
$1,000+$50 - $99 / hr2 - 9Vallgorguina, Spain
Services provided
JellyBrains Digital Studio S.L is an user experience design agency founded in 2016. The firm specializes in UX/UI Design and Custom Software Development, and is small.
Read more -
Undisclosed< $25 / hr2 - 9
Services provided
Launched in 2022, LikeChuck, a small custom software development firm, is based in Salta, Argentina. Their services include Custom Software Development and Web Development.
Read more -
$5,000+$50 - $99 / hr2 - 9
Services provided
Mantar Tech is a website development company. The London, England-based firm was founded in 2012. Their services include Web Development and Mobile App Development.
Read more -
$5,000+$25 - $49 / hr2 - 9
Services provided
KloudFirst Nextgen Systems Private Limited is a small application development company headquartered in Mumbai, India. Their services include Mobile App Development and API Development.
Read more -
$5,000+$50 - $99 / hr2 - 9Asnières-sur-Seine, France
Services provided
Arkone, a small application development firm, is headquartered in Asnières-sur-Seine, France and Paris, France. Their services include Mobile App Development and Web Development.
Read more -
$5,000+< $25 / hr2 - 9Karachi, Pakistan
Services provided
Software development firm MarqueFactory is based in Karachi, Pakistan. Founded in 2018, the team provides Custom Software Development and Web Development.
Read more -
Undisclosed< $25 / hr2 - 9
Services provided
Headquartered in Jaipur, India, Atlansian is a software development company. Established in 2024, the team offers Custom Software Development and Web Development.
Read more -
$5,000+$100 - $149 / hr2 - 9Portsmouth, England
Services provided
Located in Portsmouth, England, Digital Royalty is a custom software development firm. They specialize in Custom Software Development and API Development and were launched in 2021.
Read more -
$1,000+$300+ / hr2 - 9
Services provided
Blooming Brands Inc is an API Development company founded in 2024. Located in Boston, Massachusetts, the team offers API Development and E-Commerce Development.
Read more -
$5,000+$25 - $49 / hr2 - 9नवी मुंबई, India
Services provided
YHWorks Tech Private Limited is a small app development company. They offer Mobile App Development and Custom Software Development and were launched in 2017.
Read more -
$1,000+$25 - $49 / hr2 - 9
Services provided
Zafsoft Solution LLC is a custom software development firm launched in 2024. The small team offers Custom Software Development and Web Development.
Read more -
$1,000+$100 - $149 / hr2 - 9Union, NJ
Services provided
Web Bits is an API Development company launched in 2014. The company focuses on API Development and Low/No Code Development, and is small.
Read more -
$5,000+$25 - $49 / hr2 - 9
Services provided
Viglascode is a custom software development firm. Launched in 2024, the company is in Miami, Florida. Their services include Custom Software Development and Mobile App Development.
Read more -
$1,000+< $25 / hr2 - 9
Services provided
Credexon is a web development company. The agency is in Noida, India. Their services include Web Development and Mobile App Development.
Read more -
UndisclosedUndisclosed2 - 9Ahmedabad, India
Services provided
E-commerce development company Pyonix Technology focuses on E-Commerce Development and Custom Software Development. They are headquartered in Ahmedabad, India.
Read more -
$1,000+$25 - $49 / hr2 - 9
Services provided
Sritcreations is a Bhubaneswar, India-based custom software development company. They focus on Custom Software Development and API Development.
Read more -
$1,000+$25 - $49 / hr2 - 9
Services provided
Low/No Code Development company Alpray Automation was launched in 2021. The agency focuses on Low/No Code Development and Custom Software Development, and is small.
Read more -
$50,000+$50 - $99 / hr2 - 9worpacho, Nepal
Services provided
Launched in 2014, Purple Folder Services is a Microservices Architecture Services company. The agency provides Microservices Architecture Services and Web Development, and is small.
Read more -
$10,000+$50 - $99 / hr2 - 9Palermo, Italy
Services provided
Elsinor S.R.L. Is a small custom software development firm founded in 2025. Their team specializes in Custom Software Development and Application Management & Support.
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 API Development Services
-
$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 -
$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 -
UndisclosedUndisclosed10 - 49Draper, UT
Ability to deliver
35.6/40.016.6/20 Reviews10/10 Clients & Experience9/10 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.