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

SOFTZen Systems
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SOFTZen provides intelligent IT and business solutions aimed at optimizing operations, enhancing efficiency, and facilitating your company's growth. Additionally, SOFTZen Systems serves as a reliable resource augmentation and outsourcing agency throughout the Middle East.
Highlights
< $25/hr
Avg Hourly Rate
50-249
Employees
Islamabad, Pk
Services Provided+12 Services
4% Custom Web Application Development
3% QA & Software Testing
2% Legacy System Modernization
2% E-Commerce Development
AI Summary
“SOFTZen Systems delivers intelligent IT and business solutions, specializing in operational optimization, efficiency enhancement, and resource augmentation servicing clients across the Middle East.”
IQRAinfotech
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IQRAinfotech is a top-tier Software Development Company providing a wide range of IT Solutions. Committed to excellence and innovation, we create tailored software that aligns with your business goals. Our dedicated team of professionals utilizes cutting-edge technologies to enhance your operations
Highlights
$100,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+9 Services
12% Custom Web Application Development
10% Mobile App Development (iOS & Android)
7% API Development & Integration
5% E-Commerce Development
AI Summary
“IQRAinfotech is a software development company delivering tailored IT solutions across web, mobile, and custom software, leveraging advanced technologies to enhance business operations and growth.”
Newroz Technologies FZCO
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Newroz Tech is a technology partner located in the UAE, focusing on fintech solutions, travel platforms, sports engagement technologies, and cloud infrastructure engineering. We assist businesses in designing, developing, and managing scalable digital platforms by integrating product development wit
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Services Provided+9 Services
14% Custom Web Application Development
4% QA & Software Testing
6% E-Commerce Development
5% Mobile App Development (iOS & Android)
AI Summary
“Newroz Technologies FZCO delivers scalable fintech, travel, and sports digital platforms with cloud-native architecture, robust DevOps, and production-ready infrastructure, supporting businesses from concept through ongoing operations.”
Cikode
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We focus on providing personalized software solutions, developing websites, creating e-commerce platforms, building fintech applications, mobile applications, offering cybersecurity services, designing UX/UI, and conducting QA testing. By utilizing cutting-edge technologies, we construct high-perf
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+5 Services
12% Mobile App Development (iOS & Android)
9% E-Commerce Development
9% Custom Web Application Development
5% API Development & Integration
AI Summary
“Cikode delivers personalized, secure, and scalable software solutions including websites, fintech, mobile apps, cybersecurity, UX/UI design, and QA testing, fostering business growth through innovation.”
Line Studio
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Line Studio is a comprehensive digital agency that focuses on custom web development and strategic digital marketing. Our skilled team of developers and designers creates personalized WordPress solutions, unique plugins, and e-commerce platforms tailored to meet the specific goals of each client. Ou
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Tel Aviv-Yafo, Il
Services Provided+9 Services
14% Custom Web Application Development
8% E-Commerce Development
4% API Development & Integration
9% Mobile App UI Design
AI Summary
“Line Studio specializes in custom WordPress development, strategic digital marketing, and UX design, delivering tailored, high-performance web solutions with a client-focused, results-driven approach.”
Lipsum Technologies (Pvt) Ltd
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We founded Lipsum Technologies in 2016 with a simple principle: fulfill your commitments on time. While that may seem straightforward, it's surprisingly uncommon in our field. We completed our first 500 projects on Fiverr, focusing solely on quality and customer feedback without taking any shortcuts
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Islamabad, Pk
Services Provided+5 Services
12% Custom Web Application Development
5% E-Commerce Development
3% API Development & Integration
20% Cloud Consulting & SI
AI Summary
“Lipsum Technologies, founded in 2016, combines US-based accountability with expert Pakistani development, delivering quality software projects on time, backed by strong client satisfaction and consistent performance.”
Protea Tech
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Protea Technology Services, located in San Diego, is a software development firm that focuses on creating AI-driven mobile and web applications. We assist startups and local businesses in turning their ideas into well-crafted, scalable products—without relying on outsourcing. Our dedicated U.S. team
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+2 Services
20% Custom Web Application Development
23% Mobile App Development (iOS & Android)
7% API Development & Integration
20% Machine Learning Model Development
AI Summary
“Protea Technology Services is a US-based software firm specializing in AI-driven mobile and web applications, offering end-to-end development from MVPs to scalable, production-ready solutions.”
New York App Devs - Mobile App Development Company New York
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New York App Dev is a mobile application development firm located in New York City that focuses on creating AI-driven applications, cross-platform solutions, and comprehensive digital product engineering. We assist startups, small and medium-sized businesses, and enterprise clients in transforming a
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+9 Services
16% Mobile App Development (iOS & Android)
7% Custom Web Application Development
5% Backend Development
5% API Development & Integration
AI Summary
“New York App Dev develops AI-driven, cross-platform mobile applications for startups to enterprises, delivering scalable, user-centric solutions with expertise in Flutter, React Native, Swift, Kotlin, and backend systems.”
Webcrew Consultancy
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### Overview of Webcrew Consultancy Webcrew Consultancy started as a modest software firm providing mobile and web application development services to local customers. As time went on, it evolved into a prominent digital marketing and IT services provider in Pakistan, catering to clients worldwide.
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Services Provided+6 Services
10% Custom Web Application Development
10% Mobile App Development (iOS & Android)
4% API Development & Integration
1% E-Commerce Development
AI Summary
“Webcrew Consultancy is a Pakistan-based IT firm offering mobile, web development, digital marketing, and IT services globally with successful projects across nine countries.”
Ascendic Solutions
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Welcome to our hub of creativity and skill! At our software company, we specialize in a wide range of services designed to cater to your requirements: - **CMS & Web Development:** Creating dynamic and engaging websites that attract your audience. - **App Development:** Developing user-friendly mo
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+5 Services
7% API Development & Integration
14% Custom Web Application Development
10% Mobile App Development (iOS & Android)
3% E-Commerce Development
AI Summary
“Ascendic Solutions delivers comprehensive digital services including web and app development, UI/UX design, data analytics, and video editing to enhance engagement and support business growth.”

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Top API Development & Integration Firms

List of the Best API Development & Integration Agencies

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