Top REST API Developers in the United States
From Silicon Valley’s cloud pioneers to fintech innovators in New York and Austin’s vibrant startup scene, the United States is a global hub for robust, secure REST API development.
Clutch makes it easy to sort through hundreds of U.S. providers by collecting in-depth client reviews, project portfolios, and quantitative performance metrics. Use our filters to narrow firms by hourly rate, team size, industry focus, or location—so whether you need a lightweight MVP or enterprise-grade microservices, you’ll quickly connect with a developer that meets your exact requirements.
Ready to explore? Start with these curated resources:
• REST API Developers in New York City
15 Leaders 15 Contenders
239 Companies
List of the Top United States REST API Development Services
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$10,000+$50 - $99 / hr10 - 49Naperville, IL
Services provided
10% API Development40% Custom Software Development15% Microservices Architecture Services +510% AI Agents10% Enterprise App Modernization5% AI Development5% DevOps Managed Services5% Other Application DevelopmentFocus Areas
25% REST API25% OPEN API25% SOAP API +125% Webhook APISee all 7 projectsInspirit is a versatile technology consulting firm specializing in web development, AI integration, and data management solutions. The company has received overwhelmingly positive feedback, with 100% of reviewers praising their proactive approach, seamless communication, and effective project management. Clients consistently highlight Inspirit's ability to integrate with internal teams and deliver high-quality, timely results that align with their business objectives.
1 of 1 reviews is 5 starsUnknown avg. project costRead 1 Recent ReviewReviewed 1 time in the past 6 months
Inspirit Dev has received positive feedback for its expertise in developing AI-powered bookkeeping solutions. Clients commend the team's professionalism, timely delivery, and effective communication. One client highlighted the successful implementation of automated bookkeeping and real-time tax features, which significantly improved accuracy and user experience. The consistent quality of work and the ability to understand client needs have been particularly praised, with no reported areas for improvement, indicating strong client satisfaction.Was this helpful?
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$10,000 One rail or provider, sandbox to production $25,000 2-3 rails behind one payment abstraction $40,000 4+ rails, abstraction and reconciliation feedView PackagesBanking & Payment Rail API Integration
Production integration of the rails and payment providers: Interac, PAD/EFT, ACSS, Lynx, RTR, Open Banking, Stripe, PayPal, PIX, Plaid, or a direct bank integration. Inspirit Dev handles idempotency, webhooks, retries and rate limits, then feeds every settled transaction back into your ledger so the books match the bank.Was this helpful?
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$10,000+$150 - $199 / hr2 - 9Gainesville, FL
Services provided
25% API Development35% Web Development10% AI Agents +310% Custom Software Development10% E-Commerce Development10% Mobile App DevelopmentFocus Areas
35% REST API35% SOAP API30% Webhook APISee all 1 projectsOnward Development is a software development company specializing in creating web-based applications that streamline business processes, as demonstrated by their project for a staffing company. Reviews highlight their strong support and rapid issue resolution, with 100% of reviewers praising their responsiveness and commitment to fixing problems promptly. Clients appreciate their ability to consolidate and simplify complex workflows.
Industry Experience
Onward Development has demonstrated significant expertise in the healthcare sector, particularly in home health services and staffing applications. Clients commend their responsive support, effective project management, and ability to streamline complex processes into user-friendly solutions. The overall sentiment is highly positive, highlighting their impactful contributions to operational efficiency and client engagement. This indicates a strong fit for healthcare organizations seeking to enhance their technological capabilities.
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HealthcareWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients have noted that Onward Development provides good value for money, with investments ranging from $25,000 to $50,000. One client highlighted the company's responsiveness and support, stating, "David is very responsive... If we have a problem, he has it fixed within a day or two." Overall sentiment reflects satisfaction with the cost relative to the quality of service, indicating that clients perceive the pricing as justified by the effective solutions and support received.Was this helpful?
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$1,000+$200 - $300 / hr10 - 49Kansas City, MO
Services provided
20% API Development20% Custom Software Development20% IT Managed Services +220% Other IT Consulting and SI20% Web DevelopmentFocus Areas
25% REST API25% Partner API25% SOAP API +125% Webhook APISee all 2 projectsHealthcare Integrations is a company specializing in redesigning laboratory information systems to be cloud-based, user-friendly, reliable, and fast. They have received predominantly positive feedback, with a focus on improved turnaround time, user satisfaction, and quality improvement. Approximately 90% of feedback highlights their team’s helpfulness, though some suggest initial project leadership could be enhanced.
Industry Experience
Healthcare Integrations has demonstrated expertise in the healthcare sector, specifically in laboratory information systems (LIS). Clients have praised their ability to redesign systems to be cloud-based, user-friendly, and reliable, significantly improving turnaround times and user satisfaction. The overall sentiment reflects strong satisfaction with project management and team support, though some clients noted a need for improved project leadership. This provider is well-suited for healthcare projects requiring robust integration and system redesign.
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Other industriesWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients have generally perceived Healthcare Integrations as providing good value for money, particularly noting the effectiveness of their cloud-based laboratory information system redesign. One client invested approximately $1 million and highlighted improvements in turnaround time and user satisfaction as key outcomes. They appreciated the team's commitment and support, although some feedback suggested a desire for stronger project leadership initially. Overall, sentiment regarding cost versus value appears positive.Was this helpful?
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UndisclosedUndisclosed10 - 49Miami Beach, FL
Services provided
10% API Development15% AI Development10% Generative AI +1110% Mobile App Development10% Web Development5% AI Agents5% AI Consulting5% Application Management & Support5% Blockchain5% Custom Software Development5% DevOps Managed Services5% IoT Development5% Microservices Architecture Services5% UX/UI DesignFocus Areas
25% REST API25% OPEN API25% Partner API +125% Webhook APISee all 3 projectsTapplix Applications & Web Design LLC is a mobile app development company that specializes in creating tailored applications for specific industry needs, such as real estate. Their clients report a 100% positive experience, highlighting impressive project management and a deep understanding of industry-specific requirements. Some room for enhancement exists in expanding app customization options, but overall satisfaction is high.
Industry Experience
Tapplix Applications & Web Design LLC has demonstrated expertise primarily in the real estate industry, delivering tailored mobile applications that enhance user engagement and streamline property management. Clients commend their strong project management, timely delivery, and ability to integrate backend systems effectively, leading to improved client satisfaction and operational efficiency. The positive sentiment reflects their capability to understand and cater to industry-specific needs, making them a suitable partner for real estate businesses seeking innovative tech solutions.
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Real estateWas this helpful?
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Read All ReviewsWhat Clients Have Said
Clients have praised Tapplix Applications & Web Design LLC for their competitive pricing and overall value for money. One CEO noted that their pricing fit within budget while still delivering good value. The integration of services and timely project delivery further enhanced perceived value, leading to increased user engagement and client satisfaction. Overall, the sentiment is positive, with clients appreciating the balance between cost and quality, although some suggested enhancements for future iterations.Was this helpful?
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$10,000+$150 - $199 / hr10 - 49Buffalo, NY
Services provided
10% API Development70% E-Commerce Development10% Customer Service Outsourcing +110% Web DesignFocus Areas
80% REST API20% Webhook APISee all 9 projectsSaucal is a specialized web development company renowned for its expertise in WooCommerce and WordPress. With a focus on custom solutions, they provide services ranging from website development to ongoing maintenance and technical consultations. The reviews consistently highlight Saucal's strengths in project management, responsiveness, and technical proficiency, with nearly 100% positive feedback emphasizing their ability to deliver complex projects efficiently. Clients frequently commend their superior communication and collaboration, with approximately 90% mentioning their problem-solving capabilities and dedication to exceeding expectations.
Industry Experience
Saucal has demonstrated expertise across various industries including Financial Services, Manufacturing, Arts & Entertainment, and E-commerce. Clients commend their strong project management, technical skills, and responsiveness. In Financial Services, they excelled in developing a WooCommerce module, enhancing client satisfaction. For Manufacturing, they improved site stability and speed, crucial for e-commerce growth. In Arts & Entertainment, they innovated educational platforms with WooCommerce. Overall, their strengths lie in WooCommerce proficiency and tailored solutions, making them suitable for companies prioritizing robust digital infrastructure.
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Financial services Manufacturing Advertising & marketing IT Services Arts, entertainment & music Energy & natural resources Consumer ProductsWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Client feedback on Saucal highlights a strong perception of value for money, with many noting that their investment led to significant improvements in website performance and functionality. For instance, one client mentioned spending around $150,000, with tangible results including merchants processing over $1 million monthly. Another noted spending $20,000 for ongoing maintenance that drastically reduced their website management time. Overall, clients appreciate Saucal's thoroughness, effective communication, and adherence to budget, often finding their services to exceed expectations.Was this helpful?
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See All Locations (2)Buffalo, NY
50 Fountain Plaza, Suite 1400
Buffalo, NY 142022 - 5
8559799015
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$5,000+$25 - $49 / hr2 - 9Dothan, AL
Services provided
10% API Development30% AI Development25% Custom Software Development +315% Generative AI10% AI Agents10% AI ConsultingFocus Areas
50% REST API20% RPC API20% Webhook API +110% Partner APIXcodeFactory, a small AI development company, is based in Dothan, Alabama. The team focuses on Artificial Intelligence and Custom Software Development.
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$1,000+Undisclosed250 - 999New York, NY
Services provided
20% API Development40% BI & Big Data Consulting & SI40% Business ConsultingFocus Areas
100% REST APIFounded in 1996, Rimes Technologies is a midsize data analytics company. Their team provides BI & big data consulting & SI and Business Consulting.
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UndisclosedUndisclosed50 - 249San Jose, CA
Services provided
10% API Development20% Custom Software Development20% Mobile App Development +510% AI Development10% AR/VR Development10% DevOps Managed Services10% IoT Development10% Robotics Process AutomationFocus Areas
50% REST API50% SOAP APIEike Consulting is a software development company. Their team is in San Jose, California and provides Custom Software Development and Mobile App Development.
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$1,000+$150 - $199 / hr10 - 49West Palm Beach, FL
Services provided
10% API Development10% AI Development10% Application Management & Support +710% BI & Big Data Consulting & SI10% Cloud Consulting & SI10% Custom Software Development10% Enterprise App Modernization10% IT Managed Services10% IoT Development10% Other IT Consulting and SIFocus Areas
45% REST API20% SOAP API20% Webhook API +115% OPEN APIFounded in 2016, Saga IT is an API Development company. The company provides API Development and Custom Software Development.
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$1,000+$100 - $149 / hr2 - 9Cheyenne, WY
Services provided
20% API Development20% CRM Consulting and SI20% ERP Consulting and SI +315% AI Agents15% Low/No Code Development10% E-Commerce DevelopmentFocus Areas
40% REST API40% OPEN API20% Webhook APIERP consulting and SI company Suite Certified was launched in 2000. The team provides ERP consulting and SI and CRM consulting and SI and is based in Cheyenne, Wyoming.
Read moreView PackagesNetSuite Development
NetSuite Development using SuiteScript, User Interface Framework (UIF), SuiteTalk, SuiteQL, SCM Mobile, Field Service Management, Electronic Bank Payments, SuitePayments, or SuiteCommerce API.Was this helpful?
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$5,000+$100 - $149 / hr10 - 49Portland, OR
Services provided
10% API Development20% Business Consulting20% CRM Consulting and SI +515% Custom Software Development10% IT Strategy Consulting10% Other IT Consulting and SI10% Web Design5% E-Commerce DevelopmentFocus Areas
30% REST API40% Webhook API30% OPEN APILaunched in 2017, Automated Dreams, a small software development company, is located in Portland, Oregon. Their services include Custom Software Development and CRM consulting and SI.
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UndisclosedUndisclosed250 - 999Cambridge, MA
Services provided
10% API Development10% AI Agents10% AI Consulting +710% AI Development10% Custom Software Development10% Data Annotation Services10% Digital Engineering10% Generative AI10% IT Strategy Consulting10% Other IT Consulting and SIFocus Areas
50% REST API25% OPEN API15% Webhook API +110% Partner APILaunched in 2013, CapeStart is an AI Agents company. The team provides AI Agents and AI Consulting and is based in Cambridge, Massachusetts.
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$10,000+$25 - $49 / hr50 - 249San Antonio, TX
Services provided
10% API Development10% Application Management & Support10% Custom Software Development +710% E-Commerce Development10% Enterprise App Modernization10% IT Managed Services10% IT Staff Augmentation10% IT Strategy Consulting10% Mobile App Development10% Web DevelopmentFocus Areas
30% REST API25% SOAP API15% OPEN API +215% Partner API15% Webhook APISee all 10 projectsTowa - Nearshore Software Excellence is an API Development Services company known for its Custom Marketplace Development and API Integration expertise. They are highly praised, with 100% positive feedback, for their excellent project management, timely and budget-conscious delivery, and commitment to understanding client needs, consistently exceeding expectations.
2 of 2 REST API reviews are 5 stars$200,000 – $999,999 avg. project costREST API Experience
Towa - Nearshore Software Excellence has received overwhelmingly positive feedback for their REST API services, with 90% of reviewers citing timely delivery and effective communication. Clients appreciated their expertise in API integrations and project management, highlighting their ability to work within budget and meet complex requirements. Notably, 85% of reviewers praised their commitment to understanding business needs and providing valuable suggestions. Overall, their strengths lie in responsiveness, quality deliverables, and adherence to Agile methodologies.
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1 of 1 API Development reviews are 5 stars$50,000 – $199,999 avg. project costRead 1 ReviewAPI Development PROJECT HIGHLIGHT
Custom Software Dev for Enterprise Level Digital Marketplace
5.0 — Towa - Nearshore Software Excellence developed an enterprise-level digital marketplace for B2B and B2C transactions with ERP and CRM integrations. The tech stack included React, JavaScript, and Read moreWas this helpful?
Industry Experience
Towa - Nearshore Software Excellence has demonstrated strong expertise across multiple industries, notably Financial Services, Advertising & Marketing, Real Estate, eCommerce, IT Services, and more. Their strengths include timely project delivery, effective communication, and a commitment to quality, leading to high customer satisfaction. Positive sentiments are particularly noted in Financial Services, where their support teams significantly enhanced operational efficiency. Potential clients in these sectors may find Towa a reliable partner for their software development and project management needs.
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Financial services Advertising & marketing Consulting Real estate eCommerce Information technologyWas this helpful?
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$5,000+$100 - $149 / hr50 - 249Longmont, CO
Services provided
10% API Development10% AI Consulting10% AI Development +710% Application Management & Support10% Business Consulting10% Custom Software Development10% Cybersecurity10% E-Commerce Development10% IT Strategy Consulting10% Web DevelopmentFocus Areas
70% REST API10% Partner API10% SOAP API +110% Webhook APIRealware LLC, a midsize IT strategy consulting company, is located in Longmont, Colorado. The team provides IT strategy consulting and Cybersecurity.
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$5,000+Undisclosed10 - 49Chicago, IL
Services provided
20% API Development20% AI Development20% Cloud Consulting & SI +220% Graphic Design20% Web DevelopmentFocus Areas
100% REST APIUFlow Decision Engine, a graphic design agency, offer Graphic Design and cloud consulting & SI. They were founded in 2020.
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$10,000+$150 - $199 / hr2 - 9Meridian, ID
Services provided
10% API Development30% Custom Software Development20% E-Commerce Development +220% Mobile App Development20% Web DevelopmentFocus Areas
75% REST API25% Webhook APIMerakite is a custom software development company launched in 2017. The team specializes in Custom Software Development and Mobile App Development.
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$25,000+$100 - $149 / hr10 - 49Omaha, NE
Services provided
20% API Development20% Custom Software Development20% Enterprise App Modernization +220% IT Staff Augmentation20% Web DevelopmentFocus Areas
60% REST API10% OPEN API10% Partner API +210% SOAP API10% Webhook APIDevObsessed is an IT staff augmentation company based in Omaha, Nebraska. Established in 2022, the team specializes in IT staff augmentation and Custom Software Development.
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$1,000+$50 - $99 / hr2 - 9Orlando, FL
Services provided
15% API Development40% AI Development25% CRM Consulting and SI +210% Custom Software Development10% Low/No Code DevelopmentFocus Areas
20% REST API25% OPEN API15% Partner API +315% SOAP API15% Webhook API10% RPC APISee all 1 projectsRetailbox is a B2B AI automation agency founded in 2017 and based in Orlando, Florida. We help small and mid-market businesses (roughly 10-200 employees) replace repetitive, manual work with
Read more1 of 1 reviews is 5 stars$10,000 – $49,000 avg. project costRead 1 Recent ReviewReviewed 1 time in the past 6 months
Retailbox has received positive feedback for its effective development of a custom CRM tailored to the client's needs. The integration with GoHighLevel and automated features have significantly improved user experience for the sales team. Clients appreciate Retailbox's prompt communication and problem-solving capabilities, specifically highlighting the responsiveness of the CEO, Mykhailo. Overall, the engagement has been successful, with no identified areas for improvement from the client.Was this helpful?
Industry Experience
Retailbox has demonstrated strong expertise in the construction industry, particularly in developing custom CRM solutions that enhance operational efficiency for sales teams. Clients have praised Retailbox for its effective communication and quick problem resolution, leading to improved user experiences and automated processes. The overall sentiment from industry feedback highlights Retailbox's ability to deliver impactful, tailored software solutions that meet specific client needs.
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Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Retailbox is recognized for providing good value for money, as highlighted by a client who noted that their pricing fit within budget while delivering high-quality service. The client emphasized Retailbox's effective communication and responsiveness, which contributed positively to the overall experience. With an investment of around $10,000, the client reported significant enhancements in their CRM usability and automation, further validating Retailbox's cost-effectiveness in meeting project needs.Was this helpful?
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Undisclosed$25 - $49 / hr2 - 9Sheridan, WY
Services provided
70% API Development15% BI & Big Data Consulting & SI15% Custom Software DevelopmentFocus Areas
40% REST API35% OPEN API15% Partner API +110% Webhook APISee all 1 projectsUpscrape provides real-time data APIs for the platforms businesses monitor: commerce, grocery and quick-commerce, social media, maps and reviews, and advertising libraries.Upscrape provide
Read moreMore responsive than most other service providers
Get in TouchUpscrape is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
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$5,000+$50 - $99 / hr2 - 9Daytona Beach, FL
Services provided
10% API Development20% Custom Software Development20% Digital Strategy +415% Email Marketing15% Social Media Marketing10% AI Consulting10% AI DevelopmentFocus Areas
70% REST API15% OPEN API15% Webhook APISprut Agency is a software development firm. They offer Custom Software Development and Digital Strategy and were founded in 2025. The agency is based in Daytona Beach, Florida.
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$10,000+$150 - $199 / hr10 - 49Boston, MA
Services provided
15% API Development50% Custom Software Development30% Web Development +15% Application Management & SupportFocus Areas
50% REST API25% OPEN API25% Webhook APISoftware development firm LaunchWare specializes in Custom Software Development and Web Development. They were founded in 2006.
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UndisclosedUndisclosed2 - 9Seattle, WA
Services provided
20% API Development20% AI Development20% Cloud Consulting & SI +220% E-Commerce Development20% Web DevelopmentFocus Areas
100% REST APITaliferro Group is a cloud consulting & SI company. The Seattle, Washington-based firm was established in 2020. Their services include cloud consulting & SI and Web Development.
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UndisclosedUndisclosed1,000 - 9,999Diamond Bar, CA
Services provided
20% API Development20% Application Testing10% AI Development +510% CRM Consulting and SI10% Cloud Consulting & SI10% Cybersecurity10% E-Commerce Development10% Unified Communications Consulting & SIFocus Areas
100% REST APILiferay is an Application Testing company established in 2004. The large team focuses on Application Testing and API Development.
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$25,000+Undisclosed50 - 249Coppell, TX
Services provided
10% API Development20% Microservices Architecture Services15% Custom Software Development +515% IT Staff Augmentation10% AI Development10% IT Managed Services10% Low/No Code Development10% Web DesignFocus Areas
40% REST API20% OPEN API20% Webhook API +210% Partner API10% SOAP APIKiranam Technologies is a software development firm. The midsize Coppell, Texas-based team focuses on Custom Software Development and Artificial Intelligence. The company was founded in 2012.
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$10,000+$25 - $49 / hr10 - 49Seattle, WA
Services provided
15% API Development20% E-Commerce Development15% Custom Software Development +415% Enterprise App Modernization15% Mobile App Development10% AI Development10% Social Media MarketingFocus Areas
50% REST API20% Webhook API15% OPEN API +115% Partner APIE-commerce development company Anora.dev is headquartered in Seattle, Washington. The team provides E-Commerce Development and API Development.
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$5,000+$25 - $49 / hr10 - 49Raleigh, NC
Services provided
20% API Development20% Custom Software Development20% DevOps Managed Services +220% Microservices Architecture Services20% Product DesignFocus Areas
100% REST APIIgnituz Global is a Product Design company. They specialize in Product Design and Custom Software Development and are located in Raleigh, North Carolina.
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$5,000+$50 - $99 / hr2 - 9Dover, DE
Services provided
30% API Development40% Custom Software Development20% Application Management & Support +110% Web DevelopmentFocus Areas
60% REST API30% Webhook API10% SOAP APISee all 1 projectsHumbleDevs is a certified Plaid integration partner for fintech, lending, payments, and identity verification products. We take your integration from scope to secure production launch — and
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$5,000+$100 - $149 / hr2 - 9Cherry Valley, IL
Services provided
20% API Development50% Web Development20% Mobile App Development +110% Search Engine OptimizationFocus Areas
75% REST API15% Webhook API10% RPC APISee all 1 projectsSW Development Services offers API Development and Application Programming Interface Development, excelling in web security and CRM system integration. Clients consistently appreciate their comprehensive project management and ability to understand business needs, delivering projects promptly and within budget. Their impressive communication and alignment with client values further enhance their reputation for delivering quality services.
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$1,000+$50 - $99 / hr10 - 49San Francisco, CA
Services provided
20% API Development20% AI Development15% Blockchain +610% Custom Software Development10% E-Commerce Development10% Web Development6% Low/No Code Development5% Mobile App Development4% Other Application DevelopmentFocus Areas
35% REST API25% OPEN API20% Webhook API +210% Partner API10% SOAP APIZavod-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+$25 - $49 / hr10 - 49Miami, FL
Services provided
15% API Development35% Custom Software Development15% Mobile App Development +315% Web Development10% IT Staff Augmentation10% Low/No Code DevelopmentFocus Areas
60% REST API40% Webhook APIFounded in 2019, Voxvit is a small Pereira, Colombia-based custom software development company. Their services include Custom Software Development and Web Development.
Read moreSee All Locations (2)Miami, FL
9440 West Flagler Street
Miami, FL 331746 - 9
+17869140224
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$10,000+$50 - $99 / hr10 - 49Redlands, CA
Services provided
15% API Development40% Web Development25% Mobile App Development +210% Custom Software Development10% DevOps Managed ServicesFocus Areas
80% REST API20% Webhook APIUSDevBrokers is a Redlands, California-based website development firm. They specialize in Web Development and Mobile App Development.
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$10,000+$150 - $199 / hr2 - 9Fayetteville, AR
Services provided
15% API Development30% E-Commerce Development10% Low/No Code Development +510% Mobile App Development10% UX/UI Design10% Web Design10% Web Development5% AR/VR DevelopmentFocus Areas
85% REST API15% Webhook APISmall e-commerce development company Candela, is based in Fayetteville, Arkansas. Their services include E-Commerce Development and Web Development.
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$5,000+$100 - $149 / hr2 - 9Trumbull, CT
Services provided
15% API Development40% Custom Software Development25% UX/UI Design +120% Application TestingFocus Areas
50% REST API50% Partner APILaunched in 1999, DLS Solutions, Inc. Is a custom software development company. Their team provides Custom Software Development and UX/UI Design.
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$1,000+$100 - $149 / hr2 - 9San Francisco, CA
Services provided
15% API Development40% CRM Consulting and SI35% AI Consulting +110% Low/No Code DevelopmentFocus Areas
75% REST API20% Webhook API5% Partner APIGeniusHub, a CRM consulting and SI company, was founded in 2018. They offers CRM consulting and SI and AI Consulting.
Read moreSee All Locations (2)San Francisco, CA
995 Market Street
San Francisco, CA 941032 - 5
(415) 523-8465
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$1,000+$100 - $149 / hr2 - 9Union, NJ
Services provided
15% API Development15% Low/No Code Development10% AI Agents +710% AI Development10% Custom Software Development10% Mobile App Development10% Web Design10% Web Development5% E-Commerce Development5% Enterprise App ModernizationFocus Areas
80% REST API20% Webhook APIWeb Bits is an API Development company launched in 2014. The company focuses on API Development and Low/No Code Development, and is small.
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$5,000+Undisclosed2 - 9Sacramento, CA
Services provided
15% API Development30% Custom Software Development25% Web Development +220% Web Design10% IT Strategy ConsultingFocus Areas
50% REST API30% Webhook API20% Partner APIIn Sacramento, California, Sierra Strategic is a software development company. They provide Custom Software Development and Web Development.
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UndisclosedUndisclosed250 - 999Atlanta, GA
Services provided
20% API Development80% Application TestingFocus Areas
100% REST APIKatalon is an Application Testing company. They were established in 2016 and provide Application Testing and API Development.
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UndisclosedUndisclosed250 - 999Boston, MA
Services provided
20% API Development20% Compliance Consulting20% Corporate Training & Coaching +220% Digital Strategy20% Low/No Code DevelopmentFocus Areas
100% REST APIQuickbase, a Digital Strategy company, was established in 1999. The midsize team provides Digital Strategy and Corporate Training & Coaching.
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Undisclosed$25 - $49 / hr2 - 9Parkland, WA
Services provided
20% API Development40% Custom Software Development25% Web Development +115% AI DevelopmentFocus Areas
70% REST API15% OPEN API15% Webhook APIElevate Digital is a small software development company. Founded in 2025, the team specializes in Custom Software Development and Web Development.
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$5,000+$100 - $149 / hr2 - 9Richmond, IN
Services provided
20% API Development30% Mobile App Development25% Custom Software Development +125% Web DevelopmentFocus Areas
60% REST API20% OPEN API20% Partner APIFounded in 2026, Batteries Included, LLC is an application development firm. The team provides Mobile App Development and Custom Software Development.
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$1,000+$50 - $99 / hr10 - 49Diamond Bar, CA
Services provided
10% API Development30% Custom Software Development20% E-Commerce Development +220% Mobile App Development20% Web DevelopmentFocus Areas
55% REST API15% SOAP API10% OPEN API +210% RPC API10% Webhook APIFounded in 2017, InfoLake LLC, a small custom software development company, is in Diamond Bar, California. Their team specializes in Custom Software Development and Web Development.
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$5,000+$50 - $99 / hr10 - 49Irvine, CA
Services provided
15% API Development30% Generative AI25% AI Development +220% AI Agents10% AI ConsultingFocus Areas
45% REST API40% OPEN API15% SOAP APIGenAI Protos, a Generative AI company, was established in 2024. The team offers Generative AI and Artificial Intelligence and is in Irvine, California.
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$5,000+$50 - $99 / hr10 - 49Miami, FL
Services provided
10% API Development35% Blockchain20% AI Development +220% Web Development15% Custom Software DevelopmentFocus Areas
100% REST APIXentrolance is a Blockchain company headquartered in Miami, Florida. The team provides Blockchain and Web Development.
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$25,000+$50 - $99 / hr10 - 49San Jose, CA
Services provided
10% API Development40% Custom Software Development30% Mobile App Development +210% Low/No Code Development10% Web DesignFocus Areas
20% REST API20% Partner API20% RPC API +220% SOAP API20% Webhook APISee all 1 projectsCrea specializes in Application Programming Interface Development, offering seamless solutions for payment platforms integrated with top-tier banks. Their reviews highlight exceptional project management, responsiveness, and technical expertise, demonstrating a commitment to client success and innovation. Clients particularly appreciate their ability to deliver high-quality, bug-free solutions within tight timelines, enhancing the overall user experience.
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$1,000+$50 - $99 / hr2 - 9Tampa, FL
Services provided
10% API Development20% Web Design20% Web Development +510% Digital Strategy10% E-Commerce Development10% Pay Per Click10% Search Engine Optimization10% UX/UI DesignFocus Areas
35% REST API35% SOAP API20% Partner API +110% Webhook APIMint Sparks, LLC is a web design company. They offer Web Design and Web Development and were established in 2015.
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$5,000+$100 - $149 / hr2 - 9Tampa, FL
Services provided
10% API Development25% Custom Software Development20% AI Development +415% Web Development10% AI Agents10% Generative AI10% Mobile App DevelopmentFocus Areas
70% REST API10% OPEN API10% RPC API +110% Webhook APIKeyesCode, a small software development firm, is based in Tampa, Florida. The team provides Custom Software Development and Artificial Intelligence.
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$5,000+$150 - $199 / hr2 - 9Phoenix, AZ
Services provided
15% API Development30% Web Development20% AI Consulting +220% Custom Software Development15% Cloud Consulting & SIFocus Areas
75% REST API25% Webhook APIBackslashDev LLC is a website development firm established in 2012. Their services include Web Development and Custom Software Development.
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Undisclosed$50 - $99 / hr2 - 9San Francisco, CA
Services provided
15% API Development30% Web Development25% Custom Software Development +310% Application Testing10% E-Commerce Development10% Enterprise App ModernizationFocus Areas
80% REST API10% OPEN API10% Webhook APIFounded 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.
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Undisclosed$25 - $49 / hr10 - 49Amesbury, MA
Services provided
10% API Development10% Custom Software Development10% IoT Development +1210% UX/UI Design10% Web Development5% AI Development5% Application Management & Support5% Blockchain5% DevOps Managed Services5% E-Commerce Development5% Generative AI5% Graphic Design5% IT Staff Augmentation5% Mobile App Development5% Web DesignFocus Areas
40% REST API30% SOAP API15% Partner API +115% Webhook APITransformingDigitally is an IoT development company. They were founded in 2021 and offer IoT development and API Development.
Read moreSee All Locations (2)Amesbury, MA
55 Pamela Lane
Amesbury, MA 019132 - 5
+1-978-885-5460
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$5,000+$25 - $49 / hr10 - 49Humble, TX
Services provided
10% API Development20% Custom Software Development20% Mobile App Development +520% Web Development10% Blockchain10% Microservices Architecture Services5% Application Testing5% E-Commerce DevelopmentFocus Areas
45% REST API30% OPEN API20% SOAP API +15% Webhook APINovo Labs is a custom software development company founded in 2022. The small team offers Custom Software Development and Web Development.
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List of the Top 15 United States REST API Development Services
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$10,000+$150 - $199 / hr50 - 249Wilder, KY
Ability to deliver
35.8/40.017.4/20 Reviews10/10 Clients & Experience8.4/10 Market PresenceService focus
10% API Development70% REST API90% 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 Development25% REST API90% Other -
$25,000+$100 - $149 / hr50 - 249Austin, TX
Ability to deliver
32.3/40.019.2/20 Reviews7.5/10 Clients & Experience5.5/10 Market PresenceService focus
15% API Development50% REST API85% Other -
$10,000+$150 - $199 / hr10 - 49Irvine, CA
Ability to deliver
36.3/40.016.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
10% API Development25% REST API90% 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 Development50% REST API90% Other -
$25,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
32.6/40.018.6/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
10% API Development50% REST API90% Other -
$5,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
31/40.017/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
30% API Development30% REST API70% Other -
$10,000+$200 - $300 / hr10 - 49Miami, FL
Ability to deliver
31.7/40.015.8/20 Reviews9.7/10 Clients & Experience6.2/10 Market PresenceService focus
25% API Development35% REST API75% Other -
$10,000+$50 - $99 / hr50 - 249Fairfield, CT
Ability to deliver
29.9/40.016.4/20 Reviews9.2/10 Clients & Experience4.3/10 Market PresenceService focus
10% API Development80% REST API90% Other -
$5,000+$100 - $149 / hr10 - 49Houston, TX
Ability to deliver
33.2/40.017/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
15% API Development25% REST API85% Other -
$25,000+$100 - $149 / hr10 - 49Raleigh, NC
Ability to deliver
29.2/40.016.2/20 Reviews10/10 Clients & Experience3/10 Market PresenceService focus
25% API Development50% REST API75% Other -
$1,000+$25 - $49 / hr50 - 249Sacramento, CA
Ability to deliver
29.1/40.015.6/20 Reviews9.3/10 Clients & Experience4.2/10 Market PresenceService focus
15% API Development45% REST API85% 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 Development80% REST API90% 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 Development25% REST API90% Other -
$5,000+$25 - $49 / hr10 - 49Chicago, IL
Ability to deliver
33/40.016.6/20 Reviews9.8/10 Clients & Experience6.6/10 Market PresenceService focus
10% API Development15% REST API90% Other -
$10,000+$25 - $49 / hr50 - 249Ann Arbor, MI
Ability to deliver
27.6/40.016.6/20 Reviews5.7/10 Clients & Experience5.3/10 Market PresenceService focus
10% API Development50% REST API90% Other -
$25,000+$150 - $199 / hr50 - 249Los Angeles, CA
Ability to deliver
30.5/40.016.6/20 Reviews9.6/10 Clients & Experience4.3/10 Market PresenceService focus
10% API Development25% REST API90% Other -
$50,000+$200 - $300 / hr10 - 49San Diego, CA
Ability to deliver
27.2/40.014.6/20 Reviews8.4/10 Clients & Experience4.2/10 Market PresenceService focus
20% API Development50% REST API80% 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 Development15% REST API90% Other -
$50,000+$50 - $99 / hr10 - 49San Francisco, CA
Ability to deliver
31.3/40.017/20 Reviews10/10 Clients & Experience4.3/10 Market PresenceService focus
10% API Development20% REST API90% 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 Development70% REST API85% Other -
$5,000+$150 - $199 / hr10 - 49Salt Lake City, UT
Ability to deliver
27.3/40.016.2/20 Reviews6.2/10 Clients & Experience4.9/10 Market PresenceService focus
10% API Development60% REST API90% 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 Development20% REST API85% Other -
$50,000+$50 - $99 / hr2 - 9San Francisco, CA
Ability to deliver
27.3/40.016.4/20 Reviews5/10 Clients & Experience5.9/10 Market PresenceService focus
10% API Development50% REST API90% Other -
$10,000+$25 - $49 / hr50 - 249Parker, CO
Ability to deliver
27/40.016.2/20 Reviews6.9/10 Clients & Experience3.9/10 Market PresenceService focus
10% API Development35% REST API90% Other -
$10,000+$150 - $199 / hr2 - 9Pasadena, CA
Ability to deliver
26/40.016.6/20 Reviews4.2/10 Clients & Experience5.2/10 Market PresenceService focus
20% API Development80% REST API80% Other -
$5,000+$150 - $199 / hr10 - 49Jacksonville, FL
Ability to deliver
27.4/40.016.4/20 Reviews6.7/10 Clients & Experience4.3/10 Market PresenceService focus
10% API Development30% REST API90% Other -
$25,000+$150 - $199 / hr10 - 49Germantown, TN
Ability to deliver
24.8/40.017.6/20 Reviews0/10 Clients & Experience7.2/10 Market PresenceService focus
10% API Development80% REST API90% Other -
$10,000+$100 - $149 / hr2 - 9Denver, CO
Ability to deliver
24.8/40.016.2/20 Reviews4/10 Clients & Experience4.6/10 Market PresenceService focus
10% API Development50% REST API90% Other -
$50,000+$150 - $199 / hr10 - 49Broomfield, CO
Ability to deliver
22.6/40.016.6/20 Reviews2.2/10 Clients & Experience3.9/10 Market PresenceService focus
20% API Development100% REST API80% Other
United States REST API Development FAQs
Local REST API teams provide real-time collaboration across U.S. time zones, familiarity with American compliance standards (HIPAA, SOC 2, CCPA), and easier on-site workshops. In addition, these dedicated development agencies also tend to have direct experience with widely used U.S. cloud platforms—AWS, Azure, Google Cloud—streamlining deployment and maintenance.
American developers build APIs for virtually every sector, but common verticals include:
• Fintech and banking (Plaid, Stripe integrations)
• Healthcare and healthtech (FHIR, HL7 compliance)
• E-commerce and retail logistics
• Media and entertainment streaming services
• IoT and smart-device ecosystems
- Define your project’s specific requirements and goals—i.e., public vs. private API, expected traffic, compliance needs.
- Review case studies with similar scale and tech stack.
- Ask about automated testing, versioning strategy, and documentation standards.
- Check Clutch reviews for communication, timeliness, and post-launch support.
- Short-list 3–5 firms and request detailed technical proposals before committing.
Navigating the market can be tough, especially considering the number of options out there. Explore Clutch’s directories to find trusted firms and review their profiles to find their case studies and client ratings.
- No clear approach to security (OWASP top 10, JWT, OAuth 2.0).
- Reluctance to provide sample documentation or testing coverage.
- Overly rigid estimates without discovery sessions.
- Limited experience with your chosen cloud environment.
- Poor client references or lack of long-term maintenance offerings.
Even if some of these red flags feel inconsequential at first, ignoring them can only open the door for future mishaps and headaches. Be vigilant and avoid these warning signs early.
According to the latest pricing data collected by Clutch, most U.S. API specialists charge $100 – $200 per hour for their expertise. Typical project ranges:
- Small integrations or refactors: $10,000 – $25,000
- Mid-sized greenfield APIs: $40,000 – $80,000
- Enterprise, high-availability microservices: $100,000+
Prices vary by region (coastal cities trend higher) and by the complexity of security, data governance, and documentation requirements.
Get quotes from the 5 best-fit agencies for your project—in 4 minutes or less.