Top API Development & Integration Firms

API development and integration firms build the interfaces that let software talk to other software, and wire up the ones that already exist. Work ranges from designing REST, GraphQL or gRPC APIs for a product or partner program to connecting payment gateways, CRMs, ERPs, shipping carriers, messaging platforms and banking or healthcare systems through their published APIs. Companies hire for it when staff retype data between two systems, when partners want programmatic access, or when a monolith is being split into services.

Compare firms here on the systems they have integrated before, the documentation they hand over, and how they handle authentication, versioning and outages when a third-party API fails.

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We evaluate companies on verified profile data: services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

8,490 Companies

List of the Best API Development & Integration Agencies

PIENEXT
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PIEnext is a product development firm that assists startups and companies in creating and expanding digital products, covering everything from concept and minimum viable product (MVP) to scalable solutions.
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+11 Services
8% Mobile App Development (iOS & Android)
3% E-Commerce Development
2% Legacy System Modernization
7% API Development & Integration
AI Summary
“PIEnext specializes in developing and scaling digital products for startups and companies, delivering services from initial concept and MVP development to fully scalable solutions.”
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ALMAS
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ALMAS Web Consulting is a specialized technology firm focusing on full-stack development, AI/LLM integration, and fractional CTO services. It was established by Alexander Arshavski, an experienced entrepreneur and technologist with over 20 years in the field, who co-founded and successfully sold Caa
Highlights
$1,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
Services Provided+7 Services
5% Mobile App Development (iOS & Android)
12% API Development & Integration
14% Custom Web Application Development
3% Legacy System Modernization
AI Summary
“ALMAS Web Consulting offers expert full-stack development, AI integration, and fractional CTO services, leveraging extensive technical and entrepreneurial experience to deliver scalable, production-ready solutions.”
DEPAUSEIT
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We are crucial allies for companies seeking to leverage AI technology to succeed in today's competitive environment. Our knowledge, adaptability, and dedication to innovation position us as key contributors in assisting businesses to reach their objectives and maneuver through the challenges of the
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Katy, Texas, Us
Services Provided+16 Services
2% Other IT Consulting and SI
2% IT Staff Augmentation
2% Cloud Consulting & SI
2% Workflow Automation (Zapier / Make / n8n)
AI Summary
“DEPAUSEIT partners with businesses to harness AI technology, offering expertise and innovative solutions that drive success and navigate challenges in the evolving digital landscape.”
Code Amateur
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Code Amateur Technologies Pvt Ltd is a startup and a prominent provider of innovative technologies and services, delivering scalable solutions for businesses of any size. At Code Amateur Technologies, smart solutions are central to our approach. Our primary aim is to discover intelligent application
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+6 Services
10% Mobile App Development (iOS & Android)
4% E-Commerce Development
2% Legacy System Modernization
4% QA & Software Testing
AI Summary
“Code Amateur Technologies Pvt Ltd is a startup specializing in innovative, scalable mobile and web application development, delivering intelligent solutions to enhance business operations across industries.”
Shulyn Technologies
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Shulyn Technologies is a progressive IT firm that provides cutting-edge web, mobile, and IoT solutions. Committed to excellence, scalability, and customer success, we assist businesses in turning their concepts into significant digital products.
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Greater Noida, Uttar Pradesh, In
Services Provided+5 Services
11% Mobile App Development (iOS & Android)
11% Custom Web Application Development
3% API Development & Integration
7% Product UX Strategy
AI Summary
“Shulyn Technologies specializes in delivering innovative web, mobile, and IoT solutions, focusing on scalable digital products that drive customer success and business growth.”
Soft Build Infotech Pvt. Ltd.
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Soft Build Infotech is a skilled software development firm specializing in mobile and web applications. Located in Ahmedabad, India, we cater to clients globally, including regions such as India, the USA, the UK, and Saudi Arabia. Our passion lies in helping businesses thrive in the digital landscap
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Ahmedabad, Gujarat, In
Services Provided+11 Services
12% Mobile App Development (iOS & Android)
8% Custom Web Application Development
5% Backend Development
3% Frontend Development
AI Summary
“Soft Build Infotech Pvt. Ltd. is an Ahmedabad-based software firm offering custom mobile, web, and software development services globally, delivering innovative, scalable solutions across diverse industries.”
ikubINFO
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With over 25 years of business expertise from its founders and senior management, ikubINFO has established itself as the premier Software Engineering company in Albania. Our success is driven by a talented team of more than 200 certified developers proficient in modern technologies. While we strengt
Highlights
50-249
Employees
Al
Services Provided+10 Services
20% IT Staff Augmentation
15% Software Development Services
10% Web App UI Design
5% API Development & Integration
AI Summary
“ikubINFO excels in Software Development by delivering custom web and mobile applications, API integration, legacy system modernization, and comprehensive backend/frontend solutions, backed by strong quality assurance and testing capabilities.”
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UBK INFOTECH PVT LTD
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We are a team of IT experts with extensive experience in various areas. We provide efficient IT solutions for web design and development, graphics and logos, banners and brochures, e-commerce, and digital marketing. At Ipsa Technologies, ensuring customer satisfaction is our top priority. As a start
Highlights
< $25/hr
Avg Hourly Rate
10-49
Employees
Services Provided+3 Services
7% API Development & Integration
12% Custom Web Application Development
5% Mobile App Development (iOS & Android)
10% E-Commerce Development
AI Summary
“UBK INFOTECH PVT LTD. is an IT startup delivering comprehensive solutions in web design, development, graphics, e-commerce, and digital marketing with a focus on quality and client satisfaction.”
BitRyx Solutions
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We assist companies in streamlining operations, connecting systems, and expanding by utilizing tailored software and advanced web technologies.
Highlights
< $25/hr
Avg Hourly Rate
2-9
Employees
Orrell, England, Gb
Services Provided+6 Services
10% Custom Web Application Development
8% API Development & Integration
3% E-Commerce Development
5% QA & Software Testing
AI Summary
“BitRyx Solutions specializes in delivering customized software and advanced web technologies to help businesses optimize operations, integrate systems, and support growth effectively.”
TechnoScaffold
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Enabling Businesses through IT Services At TechnoScaffold, we focus on fostering innovation, efficiency, and achievement in the field of Information Technology. Our enthusiasm for technology and dedication to quality allow us to collaborate with businesses of various sizes to deliver advanced IT sol
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+7 Services
7% API Development & Integration
13% Mobile App Development (iOS & Android)
7% Frontend Development
7% Backend Development
AI Summary
“TechnoScaffold delivers comprehensive IT solutions including cloud computing, software development, and digital transformation, partnering with businesses to enhance operations, security, and productivity.”

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Top API Development & Integration Firms

List of the Best API Development & Integration Agencies

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