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

Baibrus Technologies
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We serve as your technology partners and have built our reputation as professional IT consultants, offering specialized support for your technology requirements. We take pride in our successful track record of collaborating with numerous public and private organizations to transform their management
Highlights
2-9
Employees
Services Provided+5 Services
17% Custom Web Application Development
10% Mobile App Development (iOS & Android)
7% API Development & Integration
33% Mobile & App Marketing
AI Summary
“Baibrus Technologies delivers professional IT consulting and tailored technology solutions, partnering with public and private organizations to enhance and transform their management systems effectively.”
Mote Consultancy Services Pvt. Ltd.
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Mote Consultancy Services (MCS) is an IT firm located in Nepal that focuses on developing tailored web and mobile applications. We provide scalable, easy-to-use, and creative digital solutions that enable businesses to grow effectively. Through a client-centered approach and demonstrated expertise,
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Kathmandu, Bagmati, Np
Services Provided+4 Services
9% Mobile App Development (iOS & Android)
11% Custom Web Application Development
4% API Development & Integration
1% E-Commerce Development
AI Summary
“Mote Consultancy Services Pvt. Ltd. specializes in developing customized web and mobile applications, delivering scalable digital solutions that empower business growth through innovative technology and client-focused services.”
VeeDo Technology
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We focus on providing cutting-edge digital solutions for legal journals. Aware of the specific challenges that legal publishers and professionals encounter in today’s digital landscape, we are committed to revolutionizing traditional legal publishing into a smooth, effective, and user-friendly exper
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+5 Services
6% Mobile App Development (iOS & Android)
10% Custom Web Application Development
6% API Development & Integration
3% E-Commerce Development
AI Summary
“VeeDo Technology delivers innovative digital solutions tailored for legal publishing, enhancing accessibility and efficiency to transform traditional legal journals into user-friendly, modern platforms.”
NovaTechZone
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NovaTechZone® is a prominent software company in Sri Lanka, specializing in innovative Mobile App Development, Website Design, Web Application Development, and Software Development. Our creative digital solutions are designed to enhance your business's brand and profitability. Established in 2015, N
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Colombo, Western Province, Lk
Services Provided+12 Services
10% Mobile App Development (iOS & Android)
8% Custom Web Application Development
3% E-Commerce Development
1% Legacy System Modernization
AI Summary
“NovaTechZone is a fast-growing Sri Lankan software company delivering innovative mobile apps, website design, and web applications to diverse global clients with quality and reliability.”
inpacktu.com.br
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Established in 2007, Inpack-tu Tech Agency turns intricate business challenges into efficient digital solutions. With almost 20 years of experience, we focus on custom systems and intelligent automations that enable businesses to grow securely and steadily. Catering to prominent sectors in Telecommu
Highlights
$50,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Services Provided+2 Services
5% Mobile App Development (iOS & Android)
17% Custom Web Application Development
7% QA & Software Testing
5% API Development & Integration
AI Summary
“Inpack-tu Tech Agency, established in 2007, delivers custom digital solutions and intelligent automations for telecommunications, finance, and industry sectors, driving secure, strategic business growth.”
IQ Ecommerce Inc.
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Iqecommerce is a prominent eCommerce company featuring a team of highly skilled consultants and certified developers dedicated to creating exceptional eCommerce solutions. Their expertise covers eCommerce design and development, multi-vendor marketplace solutions, as well as Magento development, int
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+4 Services
20% E-Commerce Development
8% Custom Web Application Development
5% API Development & Integration
23% Web App UI Design
AI Summary
“IQ Ecommerce Inc. specializes in comprehensive eCommerce solutions, including custom store development, Magento expertise, SEO, digital marketing, and IT infrastructure services for global businesses.”
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Codigo Aldea LLP
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We are dedicated to sustainability and our guiding principle is to minimize paper consumption by transitioning to digital formats. Our goal is to make technology accessible for everyone, ensuring that all individuals can comprehend and use it effectively. Through this digital transformation, we aim
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+4 Services
8% API Development & Integration
14% Custom Web Application Development
8% Mobile App Development (iOS & Android)
4% E-Commerce Development
AI Summary
“Codigo Aldea LLP promotes sustainability through digital transformation, offering technology consulting and personalized education in programming and emerging technologies to foster accessible, effective learning.”
Codility Solutions
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Codility Solutions is an AI automation and SaaS development agency designed for entrepreneurs and organizations seeking tangible results rather than excuses. We deliver production-ready software—including AI chatbots, voice agents, SaaS MVPs, and workflow automation—swiftly and with a commitment to
Highlights
$5,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Services Provided+11 Services
7% Custom Web Application Development
3% Mobile App Development (iOS & Android)
5% API Development & Integration
8% SaaS Product Development
AI Summary
“Codility Solutions is an AI automation and SaaS development partner delivering production-ready software, including AI chatbots, SaaS MVPs, and workflow automation, focused on measurable business outcomes.”
Apex Code Studio
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🚀 Apex Code Studio is a digital agency focused on Laravel and WordPress development. We assist businesses in creating scalable, high-performance websites and applications designed to meet their specific requirements. Our strengths include developing custom web solutions, API integrations, e-commerc
Highlights
2-9
Employees
Services Provided+6 Services
14% Custom Web Application Development
8% API Development & Integration
8% E-Commerce Development
3% CMS Development & Customization
AI Summary
“Apex Code Studio, based in India, specializes in custom Laravel and WordPress development, delivering scalable, SEO-friendly websites, e-commerce solutions, and API integrations tailored to business needs globally.”
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Blip Co
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Bl!p Co. is a fast-paced IT services company that focuses on advanced software development, strong backend solutions, and creative mobile applications. Our skills cover a range of areas such as healthcare, e-commerce, fintech, and social media, using cutting-edge technologies like GoLang, Flutter, J
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
Services Provided+1 Services
14% Custom Web Application Development
13% Mobile App Development (iOS & Android)
7% API Development & Integration
33% AI Agent & Multi-Agent System Development
AI Summary
“Bl!p Co. is an agile IT services firm delivering advanced software, backend systems, and mobile apps across healthcare, e-commerce, fintech, and social media using modern technologies for scalable solutions.”

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Top API Development & Integration Firms

List of the Best API Development & Integration Agencies

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